| OKUDA Masahiro |  |
| Faculty of Science and Engineering Department of Intelligent Information Engineering and Sciences | |
| Professor |
Last Updated :2025/05/02
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平成 5年 3月 慶應義塾大学理工学部電気工学科卒業
平成 5年 4月 慶應義塾大学理工学研究科修士課程電気工学専攻入学
平成 7年 3月 同 修了
平成 5年 4月 慶應義塾大学理工学研究科博士課程電気工学専攻入学
平成10年 3月 同 修了
平成10年 3月 博士（工学）（慶應義塾大学 甲第1614号）
平成 8年度 日本学術振興会特別研究員（DC2、平成9年度まで）
平成10年度 日本学術振興会特別研究員（PD、平成１２年度まで）
平成10年度 米国カリフォルニア大学サンタバーバラ校客員研究員
平成11年度 米国カーネギーメロン大学客員研究員
平成12年度 慶応義塾大学理工学部訪問研究員（電子工学科 高橋池原研究室)
平成13年度～ 平成22年度 北九州市立大学 国際環境工学部 情報メディア工学科 助教授
平成23年度～令和1年度 同 教授
令和2年4月〜 同志社大学 理工学部インテリジェント情報工学科 教授
Research Interests
Research Areas
- Informatics / Perceptual information processing
- Informatics / Biological, health, and medical informatics
Research Experience
Committee Memberships
- AIMI Scientific Committee Member, 2024/03 - Today
- APSIPA Conference Committee , Member, 2022/10 - Today
- Trans. Fund. Editor-in-Chief, 2021/06 - 2023/05, IEICE, Society
- TPC Chair, 2021/04 - 2022, APSIPA ASC 2021, Society
- 科学研究費委員会 審査第四部会第21030小委員会委員, 2020/12 - 2021/11, Government
- 電子情報通信学会 信号処理研究専門委員会 委員長, 2017/05 - 2018/05
- IEEE Signal Processing Society Japan Chapter Treasurer, 2015 - 2017
- 電子情報通信学会 論文編集委員会 エリアエディタ, 2014 - 2016
- Asia-Pacific Signal and Information Processing Association Technical Committee Member, 2014 -
- 信号処理シンポジウム 実行委員長, 2013 -
- IEEE Senior Member, -
Awards
- DXイノベーション大賞 2024・優秀賞
Mar. 2025, 日本オムニチャネル協会 - KANSAI DX AWARD 2024 グランプリ
Nov. 2024, 関西デジタル・マンス実行委員会 - グッドデザイン賞
Oct. 2024, 公益財団法人日本デザイン振興会 - Tech Direction Awards Special Prize共創賞
Aug. 2024 - 日本DX大賞 ポスターセッション優秀賞
Jun. 2024 - 電子情報通信学会 信号処理若手奨励賞
Dec. 2022 - 電子情報通信学会 信号処理研究会賞
Mar. 2019 - 電子情報通信学会 編集活動貢献賞
Sep. 2017 - IEIE Student Encouragement Award
Jul. 2017 - 電子情報通信学会 SIP研究会賞
Mar. 2017 - 電子情報通信学会 IE賞
Feb. 2017 - IEEE Senior Member 昇格
Feb. 2015 - 電子情報通信学会 SIP特別功労賞
2015
Published Papers
- Zero-shot Hyperspectral Image Denoising with Self-completion with Patterned Masks
Tatsuki Itasaka; Masahiro Okuda
IEEE International Conference on Image Processing (ICIP), Oct. 2023 - Evaluating Effectiveness of Adversarial Examples for Multivariate Time-series Data with Externality
Masatomo Yoshida; Masahiro Okuda
International Workshop on Smart Info-Media Systems in Asia, Aug. 2023 - Effects of incorporating a deep-unfolding framework into a deep neural network: implications for image restoration
Tatsuki Itasaka; Masahiro Okuda
2022 Asia-Pacific Signal and Information Processing Association Annual Summit and Conference (APSIPA ASC), IEEE, 07 Nov. 2022, International conference proceedings - Wallpaper Dataset for Image Classification.
Haruto Toyonaga; Masahiro Okuda
GCCE, 525 - 528, 2022, International conference proceedings - Adversarial Examples for Image Cropping in Social Media.
Masatomo Yoshida; Masahiro Okuda
ICASSP, 4898 - 4902, 2022, International conference proceedings - Denoising Hyperspectral Images using Interband Correlation
Shuhei Takehisa; Masahiro Okuda
Proceedings of APSIPA Annual Summit and Conference, Dec. 2021 - Constrained Design of FIR Filters with Sparse Coefficients
Tatsuki Itasaka; Ryo Matsuoka; Masahiro Okuda
IEICE Transactions on Fundamentals of Electronics, Communications and Computer Sciences, E-104-A(11), Nov. 2021 - Guided Facial Skin Color Correction
Keiichiro Shirai; Tatsuya Baba; Shunsuke Ono; Masahiro Okuda; Yusuke Tatesumi; Paul Perrotin
Signals, MDPI AG, 2(3) 540 - 558, 24 Aug. 2021, Scientific journal - TNNG: Total Nuclear Norms of Gradients for Hyperspectral Image Prior.
Ryota Yuzuriha; Ryuji Kurihara; Ryo Matsuoka; Masahiro Okuda
Remote Sensing, 13(4) 819 - 819, 2021, Scientific journal - CONSTRAINED DESIGN OF TWO-DIMENSIONAL FIR FILTERS WITH SPARSE COEFFICIENTS
Tatsuki Itasaka; Ryo Matsuoka; Masahiro Okuda
Proceedings of Asia-Pacific Signal and Information Processing Association Annual Summit and Conference, 08 Dec. 2020 - TOTAL NUCLEAR NORMS OF GRADIENTS FOR HYPERSPECTRAL IMAGE PANSHARPENING
Ryota Yuzuriha; Ryuji Kurihara; Masahiro Okuda; Ryo Matsuoka
IEEE International Geoscience and Remote Sensing Symposium, 2695 - 2698, 02 Oct. 2020 - Evaluation of primal-dual splitting algorithm for MRI reconstruction using spatio-temporal structure Tensor and L1-2 norm
Mia Rizkinia; Masahiro Okuda
Makara Journal of Technology,, 23 (3) 126 - 130, Mar. 2020 - Multiscale Structure Tensor Total Variation for Image Recovery
Makoto Watanabe; Ryo Matsuoka; Seisuke Kyochi; Shunsuke Ono; Masahiro Okuda
ICASSP 2019 - 2019 IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP), IEEE, 1867 - 1871, May 2019, International conference proceedings - High Dynamic Range Image Generation Based on Convolutional Weight Optimization Robust to Mixed Noise Removal
Ryo Matsuoka; Shunsuke Ono; Masahiro Okuda
Proc. APSIPA ASC, Nov. 2018, International conference proceedings - MOCAP Signal Interpolation using Low-rank Matrix Recovery
Ryuji Imamura; Masahiro Okuda
Proc. APSIPA ASC, Nov. 2018, International conference proceedings - Study of novel dental endoscopic system with intraoral camera and image probe for the observation of root canal
Masataka Fujimoto; Masahiro Okuda; Shinji Yoshii; Satoshi Ikezawa; Toshitsugu Ueda; Chiaki Kitamura
IFEA 11th World Endodontic Congress, Oct. 2018, International conference proceedings - Performance Comparison of MRI Restoration Methods with Low-Rank Priors
Miyoshi Tomoki; Masahiro Okuda
Proc. IEEE GCCE, Oct. 2018, International conference proceedings - Shape-aware Medical Image Enhancement by Weighted Total Variation
Ryota Yuzuriha; Masahiro Okuda
Proc. IEEE GCCE, Oct. 2018, International conference proceedings - Image enhancement method for underwater images based on discrete cosine eigenbasis transformation
Tatsuya Baba; Keishu Nakamura; Seisuke Kyochi; Masahiro Okuda
Proceedings - International Conference on Image Processing, ICIP, IEEE Computer Society, 2017- 4272 - 4276, 20 Feb. 2018, International conference proceedings - In Vitro Evaluation of a Novel Root Canal Endoscope for Visualizing the Apex of Curved Root Canal Models and an Extracted Tooth
Shinji Yoshii; Masataka Fujimoto; Masahiro Okuda; Chiaki Kitamura
J.Endodontics, 2018, Scientific journal - L0Smoothing Based on Gradient Constraints.
Yuji Akai; Toshihiro Shibata; Ryo Matsuoka; Masahiro Okuda
2018 IEEE International Conference on Image Processing, ICIP 2018, Athens, Greece, October 7-10, 2018, IEEE, 3943 - 3947, 2018, International conference proceedings - Joint Sparsity and Order Optimization Based on ADMM With Non-Uniform Group Hard Thresholding.
Ryo Matsuoka; Seisuke Kyochi; Shunsuke Ono; Masahiro Okuda
IEEE Trans. on Circuits and Systems, 65-I(5) 1602 - 1613, 2018, Scientific journal - Frequency spectrum regularization for pattern noise removal based on image decomposition
Keiichiro Shirai; Shunsuke Ono; Masahiro Okuda
25th European Signal Processing Conference, EUSIPCO 2017, Institute of Electrical and Electronics Engineers Inc., 2017- 1529 - 1533, 23 Oct. 2017, International conference proceedings - Hyperspectral image restoration based on spatio-spectral structure tensor regularization
Ryuji Kurihara; Shunsuke Ono; Keiichiro Shirai; Masahiro Okuda
25th European Signal Processing Conference, EUSIPCO 2017, Institute of Electrical and Electronics Engineers Inc., 2017- 488 - 492, 23 Oct. 2017, International conference proceedings - Computationally Efficient Reflectance Estimation for Hyperspectral Images
Takaaki Okabe; Masahiro Okuda
IEICE TRANSACTIONS ON INFORMATION AND SYSTEMS, IEICE-INST ELECTRONICS INFORMATION COMMUNICATIONS ENG, E100D(9) 2253 - 2256, Sep. 2017, Scientific journal - [解説論文]局所特徴に基づく正則化を用いた画像処理と最適化の役割
白井啓一郎; 馬場達也; 小野峻佑; 奥田正浩
電子情報通信学会 Fundamental Review, 11(1) 40 - 53, 2017 - Joint Local Abundance Sparse Unmixing for Hyperspectral Images.
Mia Rizkinia; Masahiro Okuda
Remote Sensing (IF:3.406), 9(12) 1224 , 2017 - IMPROVED EIGENVALUE SHRINKAGE USING WEIGHTED CHEBYSHEV POLYNOMIAL APPROXIMATION
Masaki Onuki; Yuichi Tanaka; Masahiro Okuda
2017 IEEE INTERNATIONAL CONFERENCE ON ACOUSTICS, SPEECH AND SIGNAL PROCESSING (ICASSP), IEEE, 4541 - 4545, 2017, International conference proceedings - Multiple Exposure Image Fusion for Recovering Under/Over-Exposure and Out-of-Focus
MATSUOKA Ryo; ISHIBASI Haruki; BABA Tatsuya; OKUDA Masahiro
電子情報通信学会論文誌D 情報・システム, The Institute of Electronics, Information and Communication Engineers, J99-D(10) 1080 - 1088, 01 Oct. 2016 - Local Spectral Component Decomposition for Multi-Channel Image Denoising
Mia Rizkinia; Tatsuya Baba; Keiichiro Shirai; Masahiro Okuda
IEEE TRANSACTIONS ON IMAGE PROCESSING, IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC, 25(7) 3208 - 3218, Jul. 2016, Scientific journal - Misaligned Image Integration With Local Linear Model
Tatsuya Baba; Ryo Matsuoka; Keiichiro Shirai; Masahiro Okuda
IEEE TRANSACTIONS ON IMAGE PROCESSING, IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC, 25(5) 2035 - 2044, May 2016, Scientific journal - HDR Image Watermarking
F. Guerrini; M. Okuda; N. Adami; R. Leonardi
High Dynamic Range Video: From Acquisition to Display and Applications, Elsevier Inc., 561 - 589, 04 Apr. 2016, In book - 露光アンダー/オーバーと焦点ボケを同時にもつ多重露光画像の統合手法
松岡 諒; 奥田 正浩
電子情報通信学会論文誌 D, J99-D 1080 - 1088, 2016, Scientific journal - VECTORIAL TOTAL VARIATION BASED ON ARRANGED STRUCTURE TENSOR FOR MULTICHANNEL IMAGE RESTORATION
Shunsuke Ono; Keiichiro Shirai; Masahiro Okuda
2016 IEEE INTERNATIONAL CONFERENCE ON ACOUSTICS, SPEECH AND SIGNAL PROCESSING PROCEEDINGS, IEEE, 4528 - 4532, 2016, International conference proceedings - Local Abundance Regularization for Hyperspectral Sparse Unmixing
Mia Rizkinia; Masahiro Okuda
2016 ASIA-PACIFIC SIGNAL AND INFORMATION PROCESSING ASSOCIATION ANNUAL SUMMIT AND CONFERENCE (APSIPA), IEEE, 1 - 6, 2016, International conference proceedings - Weight Optimization for Multiple Image Integration and Its Applications
Ryo Matsuoka; Tomohiro Yamauchi; Tatsuya Baba; Masahiro Okuda
IEICE TRANSACTIONS ON INFORMATION AND SYSTEMS, IEICE-INST ELECTRONICS INFORMATION COMMUNICATIONS ENG, E99D(1) 228 - 235, Jan. 2016, Scientific journal - White Balancing by Using Multiple Images via Intrinsic Image Decomposition
Ryo Matsuoka; Tatsuya Baba; Mia Rizkinia; Masahiro Okuda
IEICE TRANSACTIONS ON INFORMATION AND SYSTEMS, IEICE-INST ELECTRONICS INFORMATION COMMUNICATIONS ENG, E98D(8) 1562 - 1570, Aug. 2015, Scientific journal - REFLECTANCE ESTIMATION USING MULTIPLE EXPOSURE IMAGES
Yusuke Shirahashi; Ryo Matsuoka; Masahiro Okuda
2015 IEEE 4TH GLOBAL CONFERENCE ON CONSUMER ELECTRONICS (GCCE), IEEE, 324 - 325, 2015, International conference proceedings - SubPatch: Random kd-tree on a Sub-sampled Patch Set for Nearest Neighbor Field Estimation
Fabrizio Pedersoli; Sergio Benini; Nicola Adami; Masahiro Okuda; Riccardo Leonardi
SEVENTH INTERNATIONAL CONFERENCE ON MACHINE VISION (ICMV 2014), SPIE-INT SOC OPTICAL ENGINEERING, 9445, 2015, International conference proceedings - An automatic yearbook style photo generation method using color grading and guide image filtering based facial skin color correction
Tatsuya Baba; Masahiro Okuda; Paul Perrotin; Tatesumi Yusuke; Keiichiro Shirai
Proceedings 3rd IAPR Asian Conference on Pattern Recognition ACPR 2015, IEEE, 504 - 508, 2015, International conference proceedings - REFLECTANCE ESTIMATION AND WHITE BALANCING USING MULTIPLE IMAGES
Ryo Matsuoka; Tatsuya Baba; Masahiro Okuda
2015 IEEE INTERNATIONAL CONFERENCE ON IMAGE PROCESSING (ICIP), IEEE, 407 - 411, 2015, International conference proceedings - MULTIPLE EXPOSURE INTEGRATION FOR RESTORING ALL IN-FOCUS IMAGES
Ryo Matsuoka; Haruki Ishibashi; Tatsuya Baba; Masahiro Okuda
2015 IEEE INTERNATIONAL CONFERENCE ON IMAGE PROCESSING (ICIP), IEEE, 4165 - 4169, 2015, International conference proceedings - A REGULARIZATION APPROACH FOR BAYER RECONSTRUCTION IN LOSSY IMAGE CODING BY INVERSE DEMOSAICING
Masao Yamagishi; Seisuke Kyochi; Keiichiro Shirai; Masahiro Okuda
2015 IEEE INTERNATIONAL CONFERENCE ON IMAGE PROCESSING (ICIP), IEEE, 334 - 338, 2015, International conference proceedings - フラッシュ画像とノンフラッシュ画像の凸最適化による画像合成
馬場達也; 松岡 諒; 小野峻佑; 白井啓一郎; 奥田正浩
電子情報通信学会 論文誌D, J97-D(9) 1406-1415 , 2014 - LOSSLESS/NEAR-LOSSLESS COLOR IMAGE CODING BY INVERSE DEMOSAICING
Ryo Kuroiwa; Ryo Matsuoka; Seisuke Kyochi; Keiichiro Shirai; Masahiro Okuda
2014 IEEE INTERNATIONAL CONFERENCE ON ACOUSTICS, SPEECH AND SIGNAL PROCESSING (ICASSP), IEEE, 2011 - 2014, 2014, International conference proceedings - COLOR TRANSFORM BETWEEN IMAGE PAIR USING COVARIANCE CORRESPONDENCES OF LOCAL COLOR DISTRIBUTIONS
Yusuke Tatesumi; Keisuke Iwata; Keiichiro Shirai; Masahiro Okuda
2014 IEEE INTERNATIONAL CONFERENCE ON ACOUSTICS, SPEECH AND SIGNAL PROCESSING (ICASSP), IEEE, 1210 - 1214, 2014, International conference proceedings - FFT BASED SOLUTION FOR MULTIVARIABLE L-2 EQUATIONS USING KKT SYSTEM VIA FFT AND EFFICIENT PIXEL-WISE INVERSE CALCULATION
Keiichiro Shirai; Masahiro Okuda
2014 IEEE INTERNATIONAL CONFERENCE ON ACOUSTICS, SPEECH AND SIGNAL PROCESSING (ICASSP), IEEE, 2629 - 2633, 2014, International conference proceedings - FLASH/NO-FLASH IMAGE INTEGRATION USING CONVEX OPTIMIZATION
Tatsuya Baba; Ryo Matsuoka; Shunsuke Ono; Keiichiro Shirai; Masahiro Okuda
2014 IEEE INTERNATIONAL CONFERENCE ON ACOUSTICS, SPEECH AND SIGNAL PROCESSING (ICASSP), IEEE, 1185 - 1189, 2014, International conference proceedings - Constrained Design of FIR Filters with Sparse Coefficients
Ryo Matsuoka; Tatsuya Baba; Masahiro Okuda
2014 ASIA-PACIFIC SIGNAL AND INFORMATION PROCESSING ASSOCIATION ANNUAL SUMMIT AND CONFERENCE (APSIPA), IEEE, 1 - 4, 2014, International conference proceedings - Quality Evaluation of Decimated Images Using Visual Difference Predictor
Ryo Matsuoka; Takao Jinno; Masahiro Okuda
IEICE TRANSACTIONS ON FUNDAMENTALS OF ELECTRONICS COMMUNICATIONS AND COMPUTER SCIENCES, IEICE-INST ELECTRONICS INFORMATION COMMUNICATIONS ENG, E96A(8) 1824 - 1827, Aug. 2013, Scientific journal - Local covariance filtering for color images
Keiichiro Shirai; Masahiro Okuda; Takao Jinno; Masayuki Okamoto; Masaaki Ikehara
Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics), Springer, 7727(4) 406 - 417, 2013, International conference proceedings - Lossless compression of LogLuv32 hdr images by simple bitplane coding
Hisakazu Kikuchi; Taiyo Deguchi; Masahiro Okuda
2013 Picture Coding Symposium, PCS 2013 - Proceedings, IEEE Computer Society, 265 - 268, 2013, International conference proceedings - WEIGHT OPTIMIZATION FOR MULTIPLE IMAGE INTEGRATION
Ryo Matsuoka; Tomohiro Yamauchi; Tatsuya Baba; Masahiro Okuda
2013 20TH IEEE INTERNATIONAL CONFERENCE ON IMAGE PROCESSING (ICIP 2013), IEEE, 795 - 799, 2013, International conference proceedings - TONE-MAPPING FOR AN HDR SURVEILLANCE SYSTEM USING SIFT FEATURES
Takao Jinno; Shigeru Kuriyama; Masahiro Okuda
2013 PROCEEDINGS OF THE 21ST EUROPEAN SIGNAL PROCESSING CONFERENCE (EUSIPCO), IEEE, 1 - 5, 2013, International conference proceedings - HIGH DYNAMIC RANGE IMAGE ACQUISITION USING FLASH IMAGE
Ryo Matsuoka; Tatsuya Baba; Masahiro Okuda; Keiichiro Shirai
2013 IEEE INTERNATIONAL CONFERENCE ON ACOUSTICS, SPEECH AND SIGNAL PROCESSING (ICASSP), IEEE, 1612 - 1616, 2013, International conference proceedings - Design of FIR filters with decimated impulse responses
Tomohiro Yamauchi; Ryo Matsuoka; Masahiro Okuda
2013 Asia-Pacific Signal and Information Processing Association Annual Summit and Conference, APSIPA 2013, IEEE, 1 - 5, 2013, International conference proceedings - Local color distribution projection filtering using a homogeneous coordinate system
Keisuke Iwata; Keuchiro Shirai; Masahiro Okuda
2013 IEEE International Conference on Image Processing, ICIP 2013 - Proceedings, IEEE, 2274 - 2278, 2013, International conference proceedings - Multiple Exposure Fusion for High Dynamic Range Image Acquisition
Takao Jinno; Masahiro Okuda
IEEE TRANSACTIONS ON IMAGE PROCESSING, IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC, 21(1) 358 - 365, Jan. 2012, Scientific journal - HIGH DYNAMIC RANGE IMAGE COMPRESSION USING BASE MAP CODING
Takuya Fujiki; Nicola Adami; Takao Jinno; Masahiro Okuda
2012 ASIA-PACIFIC SIGNAL AND INFORMATION PROCESSING ASSOCIATION ANNUAL SUMMIT AND CONFERENCE (APSIPA ASC), IEEE, 1 - 4, 2012, International conference proceedings - NEW LOCAL TONE MAPPING AND TWO-LAYER CODING FOR HDR IMAGES
Takao Jinno; Masahiro Okuda; Nicola Adami
2012 IEEE INTERNATIONAL CONFERENCE ON ACOUSTICS, SPEECH AND SIGNAL PROCESSING (ICASSP), IEEE, 765 - 768, 2012, International conference proceedings - Multiple Exposure Integration with Image Denoising
Ryo Matsuoka; Takao Jinno; Masahiro Okuda
2012 ASIA-PACIFIC SIGNAL AND INFORMATION PROCESSING ASSOCIATION ANNUAL SUMMIT AND CONFERENCE (APSIPA ASC), IEEE, 1 - 4, 2012, International conference proceedings - HIGH CONTRAST TONE-MAPPING AND ITS APPLICATION FOR TWO-LAYER HIGH DYNAMIC RANGE CODING
Takao Jinno; Hiroya Watanabe; Masahiro Okuda
2012 ASIA-PACIFIC SIGNAL AND INFORMATION PROCESSING ASSOCIATION ANNUAL SUMMIT AND CONFERENCE (APSIPA ASC), IEEE, 1 - 4, 2012, International conference proceedings - Color-Line Vector Field and Local Color Component Decomposition for Smoothing and Denoising of Color Images
Keiichiro Shirai; Masahiro Okuda; Masaaki Ikehara
2012 21ST INTERNATIONAL CONFERENCE ON PATTERN RECOGNITION (ICPR 2012), IEEE, 3050 - 3053, 2012, International conference proceedings - Watermarking for HDR Image Robust to Tone Mapping
Xinwei Xue; Takao Jinno; Xin Jin; Masahiro Okuda; Satoshi Goto
IEICE TRANSACTIONS ON FUNDAMENTALS OF ELECTRONICS COMMUNICATIONS AND COMPUTER SCIENCES, IEICE-INST ELECTRONICS INFORMATION COMMUNICATIONS ENG, E94A(11) 2334 - 2341, Nov. 2011, Scientific journal - High Dynamic Range Image Watermarking Robust Against Tone-Mapping Operators
Fabrizio Guerrini; Masahiro Okuda; Nicola Adami; Riccardo Leonardi
IEEE TRANSACTIONS ON INFORMATION FORENSICS AND SECURITY, IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC, 6(2) 283 - 295, Jun. 2011, Scientific journal - High Dynamic Range Image Watermarking Robust Against Tone-Mapping Operators
Fabrizio Guerrini; Masahiro Okuda; Nicola Adami; Riccardo Leonardi
IEEE TRANSACTIONS ON INFORMATION FORENSICS AND SECURITY, IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC, 6(2) 283 - 295, Jun. 2011, Scientific journal - A Study on Weighting Scheme for Rational Remez Algorithm
Takao Jinno; Yusuke Saito; Masahiro Okuda
IEICE TRANSACTIONS ON FUNDAMENTALS OF ELECTRONICS COMMUNICATIONS AND COMPUTER SCIENCES, IEICE-INST ELECTRONICS INFORMATION COMMUNICATIONS ENG, E94A(4) 1144 - 1147, Apr. 2011, Scientific journal - A Study on Weighting Scheme for Rational Remez Algorithm
Takao Jinno; Yusuke Saito; Masahiro Okuda
IEICE TRANSACTIONS ON FUNDAMENTALS OF ELECTRONICS COMMUNICATIONS AND COMPUTER SCIENCES, IEICE-INST ELECTRONICS INFORMATION COMMUNICATIONS ENG, E94A(4) 1144 - 1147, Apr. 2011, Scientific journal - mu-Law Based HDR Coding and Its Error Analysis
Takao Jinno; Hironori Kaida; Xinwei Xue; Nicola Adami; Masahiro Okuda
IEICE TRANSACTIONS ON FUNDAMENTALS OF ELECTRONICS COMMUNICATIONS AND COMPUTER SCIENCES, IEICE-INST ELECTRONICS INFORMATION COMMUNICATIONS ENG, E94A(3) 972 - 978, Mar. 2011, Scientific journal - mu-Law Based HDR Coding and Its Error Analysis
Takao Jinno; Hironori Kaida; Xinwei Xue; Nicola Adami; Masahiro Okuda
IEICE TRANSACTIONS ON FUNDAMENTALS OF ELECTRONICS COMMUNICATIONS AND COMPUTER SCIENCES, IEICE-INST ELECTRONICS INFORMATION COMMUNICATIONS ENG, E94A(3) 972 - 978, Mar. 2011, Scientific journal - High Contrast HDR Video Tone Mapping Based on Gamma Curves
Takao Jinno; Kazuya Mouri; Masahiro Okuda
IEICE TRANSACTIONS ON FUNDAMENTALS OF ELECTRONICS COMMUNICATIONS AND COMPUTER SCIENCES, IEICE-INST ELECTRONICS INFORMATION COMMUNICATIONS ENG, E94A(2) 525 - 532, Feb. 2011, Scientific journal - High Contrast HDR Video Tone Mapping Based on Gamma Curves
Takao Jinno; Kazuya Mouri; Masahiro Okuda
IEICE TRANSACTIONS ON FUNDAMENTALS OF ELECTRONICS COMMUNICATIONS AND COMPUTER SCIENCES, IEICE-INST ELECTRONICS INFORMATION COMMUNICATIONS ENG, E94A(2) 525 - 532, Feb. 2011, Scientific journal - Law based watermarking for HDR image robust to tone mapping
Xinwei Xue; Masahiro Okuda; Satoshi Goto
APSIPA ASC 2011 - Asia-Pacific Signal and Information Processing Association Annual Summit and Conference 2011, 284 - 287, 2011, International conference proceedings - An optimal video-surveillance approach for HDR videos tone mapping
Alberto Boschetti; Nicola Adami; Riccardo Leonardi; Masahiro Okuda
European Signal Processing Conference, 274 - 277, 2011, International conference proceedings - Let's go to IEICE Workshops!:Signal Processing (SIP)
OKUDA Masahiro
IEICE Fundamentals Review, The Institute of Electronics, Information and Communication Engineers, 4(3) 252 - 253, 2011 - Bilateral filtering based watermarking for high dynamic range image
Xinwei Xue; Masahiro Okuda; Satoshi Goto
2011 International Symposium on Intelligent Signal Processing and Communications Systems: "The Decade of Intelligent and Green Signal Processing and Communications", ISPACS 2011, IEEE, 1 - 5, 2011, International conference proceedings - DETAIL PRESERVING MULTIPLE BIT-DEPTH IMAGE REPRESENTATION AND CODING
Takao Jinno; Masahiro Okuda; Nicola Adami
2011 18TH IEEE INTERNATIONAL CONFERENCE ON IMAGE PROCESSING (ICIP), IEEE, 1533 - 1536, 2011, International conference proceedings - AN OPTIMAL VIDEO-SURVEILLANCE APPROACH FOR HDR VIDEOS TONE MAPPING
Alberto Boschetti; Nicola Adami; Riccardo Leonardi; Masahiro Okuda
19TH EUROPEAN SIGNAL PROCESSING CONFERENCE (EUSIPCO-2011), EUROPEAN ASSOC SIGNAL SPEECH & IMAGE PROCESSING-EURASIP, 274 - 277, 2011, International conference proceedings - IMAGE CODING WITH FACE DESCRIPTORS EMBEDDING
Alberto Boschetti; Nicola Adami; Riccardo Leonardi; Masahiro Okuda
2011 18TH IEEE INTERNATIONAL CONFERENCE ON IMAGE PROCESSING (ICIP), IEEE, 3665 - 3668, 2011, International conference proceedings - Advanced weighting scheme in the rational Remez algorithm for IIR digital filters
Takao Jinno; Yusuke Saito; Masahiro Okuda
ISCIT 2010 - 2010 10th International Symposium on Communications and Information Technologies, 579 - 584, 2010, International conference proceedings - HIGH DYNAMIC RANGE IMAGE TONE MAPPING BASED ON LOCAL HISTOGRAM EQUALIZATION
A. Boschetti; N. Adami; R. Leonardi; M. Okuda
2010 IEEE INTERNATIONAL CONFERENCE ON MULTIMEDIA AND EXPO (ICME 2010), IEEE, 1130 - 1135, 2010, International conference proceedings - FLEXIBLE AND EFFECTIVE HIGH DYNAMIC RANGE IMAGE CODING
A. Boschetti; N. Adami; R. Leonardi; M. Okuda
2010 IEEE INTERNATIONAL CONFERENCE ON IMAGE PROCESSING, IEEE, 3145 - 3148, 2010, International conference proceedings - RECENT ADVANCES IN HIGH DYNAMIC RANGE IMAGING TECHNOLOGY
Yukihiro Bandoh; Guoping Qiu; Masahiro Okuda; Scott Daly; Til Aach; Oscar C. Au
2010 IEEE INTERNATIONAL CONFERENCE ON IMAGE PROCESSING, IEEE, 3125 - 3128, 2010, International conference proceedings - HDR VIDEO TONE MAPPING BASED ON GAMMA BLENDING
Takao Jinno; Kazuya Mouri; Masahiro Okuda
2010 IEEE INTERNATIONAL CONFERENCE ON IMAGE PROCESSING, IEEE, 2521 - 2524, 2010, International conference proceedings - HDR IMAGE COMPRESSION USING OPTIMIZED TONE MAPPING MODEL
Nagisa Sugiyama; Hironori Kaida; Xinwei Xue; Takao Jinno; Nicola Adami; Masahiro Okuda
2009 IEEE INTERNATIONAL CONFERENCE ON ACOUSTICS, SPEECH, AND SIGNAL PROCESSING, VOLS 1- 8, PROCEEDINGS, IEEE, 1001 - +, 2009, International conference proceedings - A COMPACT FORMAT FOR CODING OF TEXTURE IN 3D URBAN MODELS
Ishtiaq Rasool Khan; Masahiro Okuda
2009 16TH IEEE INTERNATIONAL CONFERENCE ON IMAGE PROCESSING, VOLS 1-6, IEEE, 2801 - +, 2009, International conference proceedings - Texture Classification for 3D Urban Map
Hiroyuki Inatsuka; Makoto Uchino; Satoshi Ueno; Masahiro Okuda
EURASIP JOURNAL ON IMAGE AND VIDEO PROCESSING, SPRINGER INTERNATIONAL PUBLISHING AG, 2009, 2009, Scientific journal - JPEG Compatible Raw Image Coding Based on Polynomial Tone Mapping Model
Masahiro Okuda; Nicola Adami
IEICE TRANSACTIONS ON FUNDAMENTALS OF ELECTRONICS COMMUNICATIONS AND COMPUTER SCIENCES, IEICE-INST ELECTRONICS INFORMATION COMMUNICATIONS ENG, E91A(10) 2928 - 2933, Oct. 2008, Scientific journal - JPEG Compatible Raw Image Coding Based on Polynomial Tone Mapping Model
Masahiro Okuda; Nicola Adami
IEICE TRANSACTIONS ON FUNDAMENTALS OF ELECTRONICS COMMUNICATIONS AND COMPUTER SCIENCES, IEICE-INST ELECTRONICS INFORMATION COMMUNICATIONS ENG, E91A(10) 2928 - 2933, Oct. 2008, Scientific journal - 3D avatar modeling and transmission using cylinder mapping
Shin-ichiro Takahashi; Ishtiaq Rasool Khan; Masahiro Okuda; Masaaki Ikehara
WSEAS Trans. Elec., vol. 55(no. 3) pp. 57-64 , Mar. 2008, Symposium - TEXTURE CLASSIFICATION AND RESOLUTION CONTROL FOR 3D URBAN MAP
Satoshi Ueno; Hiroyuki Inatsuka; Makoto Uchino; Masahiro Okuda
2008 IEEE INTERNATIONAL CONFERENCE ON IMAGE PROCESSING, PROCEEDINGS, IEEE, 941 - +, 2008, International conference proceedings - Compression of Human Motion Animation Using the Reduction of Interjoint Correlation
Shiyu Li; Masahiro Okuda; Shin-ichi Takahashi
EURASIP JOURNAL ON IMAGE AND VIDEO PROCESSING, SPRINGER, 2008, 2008, Scientific journal - TEXTURE CLASSIFICATION AND RESOLUTION CONTROL FOR 3D URBAN MAP
Satoshi Ueno; Hiroyuki Inatsuka; Makoto Uchino; Masahiro Okuda
2008 15TH IEEE INTERNATIONAL CONFERENCE ON IMAGE PROCESSING, VOLS 1-5, IEEE, 937 - 940, 2008, International conference proceedings - Image Compression Suitable for High Dynamic Range Image Rendering
Hironori Kaida; Masahiro Okuda
2008 22ND INTERNATIONAL WORKSHOPS ON ADVANCED INFORMATION NETWORKING AND APPLICATIONS, VOLS 1-3, IEEE, 1029 - 1033, 2008, International conference proceedings - TEXTURE CLASSIFICATION AND RESOLUTION CONTROL FOR 3D URBAN MAP
Satoshi Ueno; Hiroyuki Inatsuka; Makoto Uchino; Masahiro Okuda
2008 IEEE INTERNATIONAL CONFERENCE ON IMAGE PROCESSING, PROCEEDINGS, IEEE, 941 - +, 2008, International conference proceedings - MOTION BLUR FREE HDR IMAGE ACQUISITION USING MULTIPLE EXPOSURES
Takao Jinno; Masahiro Okuda
2008 15TH IEEE INTERNATIONAL CONFERENCE ON IMAGE PROCESSING, VOLS 1-5, IEEE, 1304 - 1307, 2008, International conference proceedings - QUANTITATIVE EVALUATION METHOD OF VISUAL DIFFERENCE CAUSED BY IMAGE DECIMATION
Satoshi Ueno; Masahiro Okuda
2008 INTERNATIONAL SYMPOSIUM ON INTELLIGENT SIGNAL PROCESSING AND COMMUNICATIONS SYSTEMS (ISPACS 2008), IEEE, 78 - 81, 2008, International conference proceedings - Two-layer coding algorithm for high dynamic range images based on luminance compensation
Masahiro Okuda; Nicola Adami
JOURNAL OF VISUAL COMMUNICATION AND IMAGE REPRESENTATION, ACADEMIC PRESS INC ELSEVIER SCIENCE, 18(5) 377 - 386, Oct. 2007, Scientific journal - Narrow transition band FIR hilbert transformers with flat magnitude response
Ishtiaq Rasool Khan; Masahiro Okuda
IEEE SIGNAL PROCESSING LETTERS, IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC, 14(9) 613 - 616, Sep. 2007, Scientific journal - Finite-impulse-response digital differentiators for midband frequencies based on maximal linearity constraints
Ishtiaq Rasool Khan; Masahiro Okuda
IEEE TRANSACTIONS ON CIRCUITS AND SYSTEMS II-EXPRESS BRIEFS, IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC, 54(3) 242 - 246, Mar. 2007, Scientific journal - Finite-impulse-response digital differentiators for midband frequencies based on maximal linearity constraints
Ishtiaq Rasool Khan; Masahiro Okuda
IEEE TRANSACTIONS ON CIRCUITS AND SYSTEMS II-EXPRESS BRIEFS, IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC, 54(3) 242 - 246, Mar. 2007, Scientific journal - Special section on multimedia and mobile signal processing
Kenji Nakayama; Eisuke Horita; Takafumi Aoki; Shigeshi Abiko; Masaaki Ikehara; Koichi Ichige; Yasuji Ota; Shuichi Ohno; Masahiro Okuda; Shigeki Obote; Hiroyuki Kamata; Hajime Kubota; Nobuhiko Sugino; Norihiro Suzuki; Akira Taguchi; Yoshinori Takeuchi; Makoto Nakashizuka; Takayuki Nakachi; Isao Nakanishi; Miki Haseyama; Shińichi Hattori; Mitsuji Muneyasu; Hiroyuki Morikawa; Takaya Yamazato; Isao Yamada
IEICE Transactions on Fundamentals of Electronics, Communications and Computer Sciences, Institute of Electronics, Information and Communication, Engineers, IEICE, E90-A(3) 545 , 2007, Scientific journal - Effective color space representation for wavelet based compression of HDR images
Masahiro Okuda; Nicola Adami
14TH INTERNATIONAL CONFERENCE ON IMAGE ANALYSIS AND PROCESSING, PROCEEDINGS, IEEE COMPUTER SOC, 388 - +, 2007, International conference proceedings - Raw image encoding based on polynomial approximation
Masahiro Okuda; Nicola Adami
2007 IEEE INTERNATIONAL CONFERENCE ON ACOUSTICS, SPEECH, AND SIGNAL PROCESSING, VOL I, PTS 1-3, PROCEEDINGS, IEEE, 1049 - +, 2007, International conference proceedings - Real time 3D avatar transmission using cylinder mapping
Shin-ichiro Takahashi; Masaaki Ikehara; Isthiaq Rasool Khan; Masahiro Okuda
2007 IEEE INTERNATIONAL CONFERENCE ON ACOUSTICS, SPEECH, AND SIGNAL PROCESSING, VOL I, PTS 1-3, PROCEEDINGS, IEEE, 473 - +, 2007, International conference proceedings - Watermarking for progressive human motion animation
Shiyu Li; Masahiro Okuda
2007 IEEE INTERNATIONAL CONFERENCE ON MULTIMEDIA AND EXPO, VOLS 1-5, IEEE, 1259 - 1262, 2007, International conference proceedings - A NEW ENCODING SCHEME FOR HDR IMAGES
Ishtiaq Rasool Khan; Masahiro Okuda
ICSPC: 2007 IEEE INTERNATIONAL CONFERENCE ON SIGNAL PROCESSING AND COMMUNICATIONS, VOLS 1-3, PROCEEDINGS, IEEE, 1495 - +, 2007, International conference proceedings - Acquisition and encoding of high dynamic range images using inverse tone mapping
Takao Jinno; Masahiro Okuda; Nicola Adami
2007 IEEE INTERNATIONAL CONFERENCE ON IMAGE PROCESSING, VOLS 1-7, IEEE, 1877 - +, 2007, International conference proceedings - Cylindrical approximation of 3D meshes and its application to similarity detection
Keiichiro Shirai; Kyoko Nagatomo; Masahiro Okuda; Masaaki Ikehara; Shin-ichi Takahashi
Journal of Signal Processing, vol.10(no.5) pp.363-370 , Oct. 2006, Symposium - 3Dモデルの高速な円筒ジオメトリ画像化法," 信学論(A),
IKEHARA MASAAKI
電子情報通信学会論文誌A, vol. J89-A(no. 7) pp. 629-638 , Jul. 2006, Symposium - Design of equiripple minimum phase FIR filters with ripple ratio control
M Okuda; M Ikehara; S Takarashi
IEICE TRANSACTIONS ON FUNDAMENTALS OF ELECTRONICS COMMUNICATIONS AND COMPUTER SCIENCES, IEICE-INST ELECTRONICS INFORMATION COMMUNICATIONS ENG, E89A(3) 751 - 756, Mar. 2006, Scientific journal - Multiresolution modeling of 3D maps
Ishtiaq Rasool Khan; Masahiro Okuda
2005 IEEE 7th Workshop on Multimedia Signal Processing, IEEE, 1 - 4, 2006, International conference proceedings - New designs of MAXFLAT FIR halfband low/high pass digital filters with narrow transition bands
Ishtiaq Rasool Khan; Masahiro Okuda
2006 IEEE International Conference on Acoustics, Speech and Signal Processing, Vols 1-13, IEEE, 3439 - 3442, 2006, International conference proceedings - Simplification of texture in 3D maps
Masahiro Okuda; Ishtiaq Rasool Khan
20TH INTERNATIONAL CONFERENCE ON ADVANCED INFORMATION NETWORKING AND APPLICATIONS, VOL 2, PROCEEDINGS, IEEE COMPUTER SOC, 678 - +, 2006, International conference proceedings - Texture simplification in 3D maps for visualization at low resolution
Ishtiaq Rasool Khan; Masahiro Okuda
2006 INTERNATIONAL SYMPOSIUM ON INTELLIGENT SIGNAL PROCESSING AND COMMUNICATIONS, VOLS 1 AND 2, IEEE, 17 - +, 2006, International conference proceedings - Complex approximation of FIR digital filters by updating desired responses
M Okuda; M Yoshida; K Kiyose; M Ikehara; S Takahashi
IEEE TRANSACTIONS ON SIGNAL PROCESSING, IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC, 53(8) 2948 - 2953, Aug. 2005 - Improved kinematics based motion compression for human figure animation
Shiyu Li; Masahiro Okuda; Shin-Ichi Takahashi
2005 International Conference on Communications, Circuits and Systems - Proceedings, 2 833 - 837, 2005, International conference proceedings - Digital differentiators for narrow band applications in the lower to midband range
Ishtiaq Rasool Khan; Masahiro Okuda; Ryoji Ohba
Proceedings - IEEE International Symposium on Circuits and Systems, 3721 - 3724, 2005, International conference proceedings - Simplification of texture in 3D urban models using the Hough transform
IR Khan; M Okuda
PROCEEDINGS OF THE FIFTH IASTED INTERNATIONAL CONFERENCE ON VISUALIZATION, IMAGING, AND IMAGE PROCESSING, ACTA PRESS, 7 - 11, 2005, International conference proceedings - Digital differentiators for narrow band applications in the lower to midband range
IR Khan; M Okuda; R Ohba
2005 IEEE INTERNATIONAL SYMPOSIUM ON CIRCUITS AND SYSTEMS (ISCAS), VOLS 1-6, CONFERENCE PROCEEDINGS, IEEE, 3721 - 3724, 2005, International conference proceedings - Level of detail control for texture on 3D maps
H Inatsuka; M Uchino; M Okuda
11TH INTERNATIONAL CONFERENCE ON PARALLEL AND DISTRIBUTED SYSTEMS WORKSHOPS, VOL II, PROCEEDINGS,, IEEE COMPUTER SOC, 206 - 209, 2005, International conference proceedings - Position-based keyframe selection for human motion animation
H Togawa; M Okuda
11TH INTERNATIONAL CONFERENCE ON PARALLEL AND DISTRIBUTED SYSTEMS WORKSHOPS, VOL II, PROCEEDINGS,, IEEE COMPUTER SOC, 182 - 185, 2005, International conference proceedings - Embedded key-frame extraction for CG animation by frame decimation
SY Li; M Okuda; S Takahashi
2005 IEEE International Conference on Multimedia and Expo (ICME), Vols 1 and 2, IEEE, 1405 - 1408, 2005, International conference proceedings - Kinematics based motion compression for human figure animation
SY Li; M Okuda; S Takahashi
2005 IEEE INTERNATIONAL CONFERENCE ON ACOUSTICS, SPEECH, AND SIGNAL PROCESSING, VOLS 1-5, IEEE, 1077 - 1080, 2005, International conference proceedings - Simultaneous approximation for magnitude and phase responses of FIR digital filters
M Okuda; M Yoshida; M Ikehara; S Takahashi
IEICE TRANSACTIONS ON FUNDAMENTALS OF ELECTRONICS COMMUNICATIONS AND COMPUTER SCIENCES, IEICE-INST ELECTRONICS INFORMATION COMMUNICATIONS ENG, E87A(11) 2957 - 2963, Nov. 2004, Scientific journal - Design of FIR digital differentiators using maximal linearity constraints
IR Khan; M Okuda; R Ohba
IEICE TRANSACTIONS ON FUNDAMENTALS OF ELECTRONICS COMMUNICATIONS AND COMPUTER SCIENCES, IEICE-INST ELECTRONICS INFORMATION COMMUNICATIONS ENG, E87A(8) 2010 - 2017, Aug. 2004, Scientific journal - Quasi-equiripple Approximation of Minimum phase FIR filters by updating desired response
M.Okuda; I.R.Khan; IKEHARA MASAAKI; S. Takahashi
IEE Proceedings of Vision and Image signal processing, 151(3) 164-169 , Jun. 2004, Symposium - MAXACC FIR digital differentiators of higher degrees
IR Khan; M Okuda; R Ohba
SICE 2004 ANNUAL CONFERENCE, VOLS 1-3, SOC INSTRUMENT CONTROL ENGINEERS JAPAN, 2449 - 2452, 2004, International conference proceedings - Hierarchical human motion compression with constraints on frames
SY Li; M Okuda; S Takahashi
2004 47TH MIDWEST SYMPOSIUM ON CIRCUITS AND SYSTEMS, VOL I, CONFERENCE PROCEEDINGS, IEEE, 253 - 256, 2004, International conference proceedings - A new design of type IV digital differentiators based on maximal linearity constraints applied at omega = pi/2
IR Khan; M Okuda
INMIC 2004: 8TH INTERNATIONAL MULTITOPIC CONFERENCE, PROCEEDINGS, IEEE, 208 - 213, 2004, International conference proceedings - Eigen-model based 3D model recognition from cylindrical mapped image
S Li; IR Khan; M Okuda; Y Yamazaki; S Takahashi
2004 INTERNATIONAL CONFERENCE ON COMMUNICATION, CIRCUITS, AND SYSTEMS, VOLS 1 AND 2, IEEE, 979 - 983, 2004, International conference proceedings - New design of FIR digital differentiators having maximally linearity at middle of the frequency band
IR Khan; M Okuda; R Ohba
IEEE INTERNATIONAL SYMPOSIUM ON COMMUNICATIONS AND INFORMATION TECHNOLOGIES 2004 (ISCIT 2004), PROCEEDINGS, VOLS 1 AND 2, IEEE, 178 - 183, 2004, International conference proceedings - Higher degree FIR digital differentiators based on Taylor series
IR Khan; M Okuda; R Ohba
2004 47TH MIDWEST SYMPOSIUM ON CIRCUITS AND SYSTEMS, VOL II, CONFERENCE PROCEEDINGS, IEEE, 57 - 60, 2004, International conference proceedings - Fast regular mesh approximation of 3D models by cylindrical mapping
K Shirai; M Ikehara; M Okuda
IEEE INTERNATIONAL SYMPOSIUM ON COMMUNICATIONS AND INFORMATION TECHNOLOGIES 2004 (ISCIT 2004), PROCEEDINGS, VOLS 1 AND 2, IEEE, 861 - 866, 2004, International conference proceedings - A study on joint progressive coding of range data and texture images
T Osabe; K Shirai; T Uto; M Okuda; M Ikehara
IEEE INTERNATIONAL SYMPOSIUM ON COMMUNICATIONS AND INFORMATION TECHNOLOGIES 2004 (ISCIT 2004), PROCEEDINGS, VOLS 1 AND 2, IEEE, 845 - 848, 2004, International conference proceedings - Range image registration using multiresolution decomposition
T Uto; M Okuda; M Ikehara; S Takahashi
2004 IEEE 6TH WORKSHOP ON MULTIMEDIA SIGNAL PROCESSING, IEEE, 235 - 238, 2004, International conference proceedings - Similarity detection of 3D meshes using 2D hierarchical regular grids
M Okuda; K Nagatomo; M Ikehara; S Takahashi
2004 IEEE INTERNATIONAL CONFERENCE ON MULTIMEDIA AND EXP (ICME), VOLS 1-3, IEEE, 145 - 148, 2004, International conference proceedings - Regular 3D mesh reconstruction based on cylindrical mapping
IR Khan; M Okuda; S Takahashi
2004 IEEE INTERNATIONAL CONFERENCE ON MULTIMEDIA AND EXP (ICME), VOLS 1-3, IEEE, 133 - 136, 2004, International conference proceedings - Progressive geometry coding of partitioned 3D models
M Okuda; S Takahashi
IEICE TRANSACTIONS ON INFORMATION AND SYSTEMS, IEICE-INST ELECTRONICS INFORMATION COMMUNICATIONS ENG, E86D(11) 2418 - 2425, Nov. 2003, Scientific journal - Measuring Errors on 3D Meshes using Pixel Based Search
K.Inagaki; M.Okuda; M.Ikehara; S.Takahashi
IEICE Trans. Inf. & Syst., The Institute of Electronics, Information and Communication Engineers, Vol.E86-D(No.9) 1903-1908 - 1908, Sep. 2003, Symposium - Compression of 3D models by remesh on texture images
M Okuda; K Nagatomo; M Ikehara; S Takahashi
IEICE TRANSACTIONS ON INFORMATION AND SYSTEMS, IEICE-INST ELECTRONICS INFORMATION COMMUNICATIONS ENG, E86D(6) 1110 - 1115, Jun. 2003, Scientific journal - New designs of frequency selective FIR digital filters
IR Khan; M Okuda; R Ohba
PROCEEDINGS OF THE 2003 IEEE INTERNATIONAL SYMPOSIUM ON CIRCUITS AND SYSTEMS, VOL IV, IEEE, 185 - 188, 2003, International conference proceedings - Realization of an orthogonal filter with hypercomplex coefficients
Masahiro Okuda; Masato Kamata; Shin-Ichi Takahashi
Electronics and Communications in Japan, Part III: Fundamental Electronic Science (English translation of Denshi Tsushin Gakkai Ronbunshi), 85(3) 52 - 60, 2002, Scientific journal - Lossless transforms and lossy transforms using IIR filters and their application to image coding
T Uto; Y Kouno; M Okuda; M Ikehara; S Takahashi
ELECTRONICS AND COMMUNICATIONS IN JAPAN PART III-FUNDAMENTAL ELECTRONIC SCIENCE, SCRIPTA TECHNICA-JOHN WILEY & SONS, 85(7) 1 - 9, 2002, Scientific journal - Progressive coding of textured 3D models
K Nagatomo; D Yoshikai; M Okuda; M Ikehara; S Takahashi
IEEE INTERNATIONAL CONFERENCE ON MULTIMEDIA AND EXPO, VOL I AND II, PROCEEDINGS, IEEE, 357 - 360, 2002, International conference proceedings - Wavelet packet algorithm for quadtree-based embedded image coding
T Uto; M Ikehara; M Okuda
2002 IEEE INTERNATIONAL CONFERENCE ON ACOUSTICS, SPEECH, AND SIGNAL PROCESSING, VOLS I-IV, PROCEEDINGS, IEEE, 3517 - 3520, 2002, International conference proceedings - Filter Banks with Nonlinear Lifting Steps for Lossless Image Compression
M.Okuda; S.K.Mitra; M. Ikehara; S. Takahashi
IEICE Trans. Fundamental,, The Institute of Electronics, Information and Communication Engineers, volE84-A(No.13) 797-801 - 801, Mar. 2001, Symposium - Equiripple design in complex domain for FIR digital filters by transforming desired response
M Okuda; K Kiyose; M Ikehara; S Takahashi
ELECTRONICS AND COMMUNICATIONS IN JAPAN PART III-FUNDAMENTAL ELECTRONIC SCIENCE, SCRIPTA TECHNICA-JOHN WILEY & SONS, 84(2) 30 - 37, 2001, Scientific journal - Measuring error on 3D meshes using pixel division
K Inagaki; M Okuda; M Ikehara; S Takahashi
2001 IEEE FOURTH WORKSHOP ON MULTIMEDIA SIGNAL PROCESSING, IEEE, 281 - 286, 2001, International conference proceedings - Complex approximation for FIR filters with equiripple magnitude and phase response
M Ikehara; M Okuda; K Kiyose; S Takahashi
ISCAS 2000: IEEE INTERNATIONAL SYMPOSIUM ON CIRCUITS AND SYSTEMS - PROCEEDINGS, VOL IV, IEEE, 73 - 76, 2000, International conference proceedings - Joint geometry/texture progressive coding of 3D models
M Okuda; T Chen
2000 INTERNATIONAL CONFERENCE ON IMAGE PROCESSING, VOL III, PROCEEDINGS, IEEE, 632 - 635, 2000, International conference proceedings - A new resolution progressive coding scheme using a sorting algorithm
T Takahara; M Okuda; M Ikehara; S Takahashi
2000 INTERNATIONAL CONFERENCE ON IMAGE PROCESSING, VOL III, PROCEEDINGS, IEEE, 198 - 201, 2000, International conference proceedings - Image Coding Using Wavelets Based on Two-Channel Linear Phase Orthogonal LIR Filter Banks.
Toshiyuki Uto; Masahiro Okuda; Masaaki Ikehara; Shinichi Takahashi
Proceedings of the 1999 International Conference on Image Processing, ICIP '99, Kobe, Japan, October 24-28, 1999, IEEE, 265 - 268, 1999 - Time-Varying Wavelet Transforms with Lifting Steps for Lossless Image Compression.
Masahiro Okuda; Sanjit K. Mitra; Masaaki Ikehara; Shinichi Takahashi
Proceedings of the 1999 International Conference on Image Processing, ICIP '99, Kobe, Japan, October 24-28, 1999, IEEE, 4 48 - 52, 1999 - Design of biorthogonal filter banks composed of linear phase IIR filters
M Okuda; M Ikehara; S Takahashi
IEICE TRANSACTIONS ON FUNDAMENTALS OF ELECTRONICS COMMUNICATIONS AND COMPUTER SCIENCES, IEICE-INST ELECTRONICS INFORMATION COMMUNICATIONS ENG, E81A(11) 2449 - 2454, Nov. 1998, Scientific journal - Least-squares approach to IIR digital filters and an application to equiripple solutions
M Okuda; M Ikehara; S Takahashi
ELECTRONICS AND COMMUNICATIONS IN JAPAN PART III-FUNDAMENTAL ELECTRONIC SCIENCE, SCRIPTA TECHNICA-JOHN WILEY & SONS, 81(7) 28 - 36, Jul. 1998, Scientific journal - Fast and stable least-squares approach for the design of linear phase FIR filters
M Okuda; M Ikehara; S Takahashi
IEEE TRANSACTIONS ON SIGNAL PROCESSING, IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC, 46(6) 1485 - 1493, Jun. 1998, Scientific journal - Least-square method for 2D FIR digital filters without matrix inversions
M Okuda; M Ikehara; S Takahashi
ELECTRONICS AND COMMUNICATIONS IN JAPAN PART III-FUNDAMENTAL ELECTRONIC SCIENCE, SCRIPTA TECHNICA-JOHN WILEY & SONS, 81(5) 12 - 21, May 1998, Scientific journal - The design of two-channel perfect reconstruction IIR filter banks with causality
Masahiro Okuda; Takashi Fukuoka; Masaaki Ikehara; Shin-Ichi Takahashi
Electronics and Communications in Japan, Part III: Fundamental Electronic Science (English translation of Denshi Tsushin Gakkai Ronbunshi), John Wiley and Sons Inc., 81(5) 22 - 31, 1998, Scientific journal - Design of linear phase FIR filters using the nonuniform DCT
M Okuda; K Kiyose; M Ikehara; S Takahashi
ISCAS '98 - PROCEEDINGS OF THE 1998 INTERNATIONAL SYMPOSIUM ON CIRCUITS AND SYSTEMS, VOLS 1-6, IEEE, D371 - D374, 1998, International conference proceedings - Design of biorthogonal filter banks composed of linear phase IIR filters
M Okuda; M Ikehara; S Takahashi
PROCEEDINGS OF THE 1998 IEEE INTERNATIONAL CONFERENCE ON ACOUSTICS, SPEECH AND SIGNAL PROCESSING, VOLS 1-6, IEEE, 1453 - 1456, 1998, International conference proceedings - Design of causal IIR filter banks satisfying perfect reconstruction
Masahiro Okuda; Takeshi Fukuoka; Masaaki Ikehara; Shin ichi Takahashi
Proceedings - IEEE International Symposium on Circuits and Systems, IEEE, 4 2433 - 2436, 1997, International conference proceedings - Quasi-equiripple approximation for FIR filters in the complex domain
H Oka; K Kiyose; M Okuda; M Ikehara; S Takahashi
1997 IEEE PACIFIC RIM CONFERENCE ON COMMUNICATIONS, COMPUTERS AND SIGNAL PROCESSING, VOLS 1 AND 2, I E E E, 169 - 172, 1997, International conference proceedings - Design of IIR eigenfilters
M Okuda; M Ikehara; S Takahashi
1997 IEEE PACIFIC RIM CONFERENCE ON COMMUNICATIONS, COMPUTERS AND SIGNAL PROCESSING, VOLS 1 AND 2, I E E E, 161 - 164, 1997, International conference proceedings - Fast least squares algorithm for linear phase FIR filters
M Okuda; M Ikehara; S Takahashi
ISCAS '97 - PROCEEDINGS OF 1997 IEEE INTERNATIONAL SYMPOSIUM ON CIRCUITS AND SYSTEMS, VOLS I - IV, I E E E, 2248 - 2251, 1997, International conference proceedings - Simultaneous Approximation for IIR Digital Filters with Log Magnitude and Phase Response
奥田正浩; 池原 雅章; 高橋進一
IEICE Trans. Fundamental, The Institute of Electronics, Information and Communication Engineers, Vol.E79-A(No.11) 1879-1885 - 1885, Nov. 1996, Symposium - Approximation of group delay response of allpass filters using weighted least square method
Masahiro Okuda; Kojiro Matsuyama; Masaaki Ikehara
Electronics and Communications in Japan, Part III: Fundamental Electronic Science (English translation of Denshi Tsushin Gakkai Ronbunshi), John Wiley and Sons Inc., 79(6) 60 - 69, 1996, Scientific journal - Approximation of group delay response using weighted least square method
Kojiro Matsuyama; Masahiro Okuda; Masaaki Ikehara
Proceedings - IEEE International Symposium on Circuits and Systems, IEEE, 2 197 - 200, 1996, International conference proceedings - Complex approximation of 2-D digital filters with prescribed log magnitude and phase response
M Okuda; K Matsuda; M Ikehara; S Takahashi
1996 IEEE TENCON - DIGITAL SIGNAL PROCESSING APPLICATIONS PROCEEDINGS, VOLS 1 AND 2, IEEE, 388 - 393, 1996, International conference proceedings - Design of nearly linear phase IIR digital filters with prescribed log magnitude response
M Okuda; M Ikehara; S Takahashi
PROCEEDINGS OF THE 39TH MIDWEST SYMPOSIUM ON CIRCUITS AND SYSTEMS, VOLS I-III, I E E E, 631 - 634, 1996, International conference proceedings - Complex Chebyshev approximation for infinite impulse response digital filters
M Okuda; M Ikehara; S Takahashi
ELECTRONICS AND COMMUNICATIONS IN JAPAN PART III-FUNDAMENTAL ELECTRONIC SCIENCE, SCRIPTA TECHNICA PUBL, 79(1) 12 - 21, Jan. 1996, Scientific journal
MISC
- Self-supervised Hyperspectral Image Restoration using Separable Image Prior
Ryuji Imamura; Tatsuki Itasaka; Masahiro Okuda
電子情報通信学会技術研究報告, 117(395(SIP2017 63-110)) 107‐111 , 01 Jul. 2019 - Recent Advances in Image Restoration, Sparse Coding vs Deep Learning
Masahiro Okuda
IJJSS 2018 in Conjunction with the CEReS International Symposium, Oct. 2018 - Robust Image Smoothing Based on Gradient Range Constrains
赤井優志; 柴田峻敬; 松岡諒; 奥田正浩
電子情報通信学会技術研究報告, 118(85(MSS2018 1-36)) 33‐37 , 07 Jun. 2018 - Robust Principle Component Analysisを用いたノイズ除去とコントラスト強調による歯科用内視鏡取得画像の視認性向上
藤元政考; 吉居慎二; 奥田正浩; 池沢聡; 植田敏嗣; 西野宇信; 北村知昭
日本歯科保存学会学術大会プログラムおよび講演抄録集(Web), 148th 75 (WEB ONLY) , 18 May 2018 - 波長の相関を利用したハイパースペクトル画像のノイズ除去
栗原竜司; 奥田正浩
電子情報通信学会大会講演論文集(CD-ROM), 2018 ROMBUNNO.D‐11‐33 , 06 Mar. 2018 - 北九州市における医歯工連携の取り組みについて
藤元政考; 奥田正浩; 吉居慎二; 池沢聡; 植田敏嗣; 青木隆敏; 永原正章; 北村知昭
電子情報通信学会大会講演論文集(CD-ROM), 2018 ROMBUNNO.AI‐3‐2 , 06 Mar. 2018 - 生体深部イメージングと微細構造解析
奥田正浩; 永原正章; 青木隆敏; 北村知昭; 吉居慎二; 藤元政考
北九州市立大学環境技術研究所機関誌 環境「創」, 6 4 - 5, 2018, Introduction research institution - 根管内視鏡と市販の口腔内カメラとの融合による微細構造観察システムの開発
藤元政考; 吉居慎二; 奥田正浩; 池沢聡; 植田敏嗣; 北村知昭
日本歯科保存学会学術大会プログラムおよび講演抄録集(Web), 147th 188 (WEB ONLY) , 25 Oct. 2017 - Multiple Exposure Blending Method Robust to Mixed Noise (画像工学)
MATSUOKA Ryo; ONO Shunsuke; OKUDA Masahiro
電子情報通信学会技術研究報告 = IEICE technical report : 信学技報, 電子情報通信学会, 117(113) 13 - 18, 29 Jun. 2017 - Minimization of Mixed Norm for Frequency Spectrum of Images and Its Application of Pattern Noise Decomposition
白井啓一郎; 小野峻佑; 奥田正浩
電子情報通信学会技術研究報告, 116(463(ITS2016 42-76)) 275‐280 , 13 Feb. 2017 - Minimization of Mixed Norm for Frequency Spectrum of Images and Its Application of Pattern Noise Decomposition
白井 啓一郎; 小野 峻佑; 奥田 正浩
映像情報メディア学会技術報告 = ITE technical report, 映像情報メディア学会, 41(5) 275 - 280, Feb. 2017 - Image enhancement method for images fogged by colored water
馬場達也; 京地清介; 奥田正浩
電子情報通信学会技術研究報告, 116(396(RCS2016 236-288)) 261‐266 , 12 Jan. 2017 - Image Processing Using Local Regularization: The Role of Optimization
白井啓一郎; 馬場達也; 小野峻佑; 奥田正浩
Fundamentals Review (Web), 11(1) 40‐53(J‐STAGE) , 2017 - フィルタ次数最小化を考慮したスパースFIRフィルタの設計
松岡諒; 京地清介; 小野峻佑; 奥田正浩
信号処理シンポジウム講演論文集(CD-ROM), 32nd ROMBUNNO.B4‐2 , 2017 - 重み付きチェビシェフ多項式近似による固有値の縮退法
小貫真希; 田中雄一; 田中雄一; 奥田正浩
信号処理シンポジウム講演論文集(CD-ROM), 32nd ROMBUNNO.A2‐2 , 2017 - KLT基底変換に基づくカラー画像のホワイトバランシング
中村圭秀; 京地清介; 馬場達也; 奥田正浩
画像符号化シンポジウム・映像メディア処理シンポジウム, 31st-21st 180‐181 , 16 Nov. 2016 - 空間‐波長構造テンソルに基づくハイパースペクトル画像のための正則化
栗原竜司; 小野峻佑; 白井啓一郎; 奥田正浩
信号処理シンポジウム講演論文集(CD-ROM), 31st ROMBUNNO.A2‐2 , 2016 - 露光アンダー/オーバーと焦点ボケを同時にもつ多重露光画像の統合手法
松岡諒; 石橋治樹; 馬場達也; 奥田正浩
電子情報通信学会論文誌 D(Web), J99-D(10), 2016 - Intrinsic Image Decomposition and its Applications
奥田正浩
電子情報通信学会技術研究報告, 115(75(SIS2015 1-14)) 39 - 44, 01 Jun. 2015 - A Study on Multiple Exposure Image Fusion with Focus Blur Correction
松岡諒; 石橋治樹; 馬場達也; 奥田正浩
電子情報通信学会技術研究報告, 114(473(EA2014 72-130)) 97 - 102, 23 Feb. 2015 - A-4-1 Image sharpening using a Flash/No-flash Image pair
Baba Tatsuya; Matsuoka Ryo; Okuda Masahiro
Proceedings of the Society Conference of IEICE, The Institute of Electronics, Information and Communication Engineers, 2014 62 - 62, 09 Sep. 2014 - AS-1-7 A Study of Constrained Sparse FIR Filter Design
Matsuoka Ryo; Baba Tatsuya; Okuda Masahiro
Proceedings of the Society Conference of IEICE, The Institute of Electronics, Information and Communication Engineers, 2014 "S - 12"-"S-13", 09 Sep. 2014 - Multiple Exposure Image Fusion with Noise Reduction for HDR Acquisition
MATSUOKA Ryo; JINNO Takao; OKUDA Masahiro
The Transactions of the Institute of Electronics, Information and Communication Engineers. A, The Institute of Electronics, Information and Communication Engineers, 97(3) 209 - 220, Mar. 2014 - Contrast enhancement on texture component of the flash image
BABA Tatsuya; MATSUOKA Ryo; ONO Shunsuke; SHIRAI Keichiro; OKUDA Masahiro
IEICE technical report. Signal processing, The Institute of Electronics, Information and Communication Engineers, 113(191) 79 - 83, 29 Aug. 2013 - Color Transform Between Pair Imagegs Based on the Covariance Projection of Local Color Distributions
立住 優介; 白井 啓一郎; 奥田 正浩
回路とシステムワークショップ論文集 Workshop on Circuits and Systems, [電子情報通信学会], 26 518 - 523, 29 Jul. 2013 - A Modified Range Mapping for Irreversible Compression of High Dynamic Range Images
DEGUCHI Taiyo; HWANG Junghyeun; KIKUCHI Hisakazu; SHINODA Kazuma; OKUDA Masahiro
IEICE technical report. Communication systems, The Institute of Electronics, Information and Communication Engineers, 112(486) 33 - 38, 14 Mar. 2013 - Lossless Compression of High Dynamic Range Images Encoded in 32-bit RGBE Format by Simple Bitplane Coding
FUKUMOTO Toshinori; HWANG Junghyeun; KIKUCHI Hisakazu; SHINODA Kazuma; OKUDA Masahiro
IEICE technical report. Communication systems, The Institute of Electronics, Information and Communication Engineers, 112(486) 45 - 50, 14 Mar. 2013 - A-4-26 Weight Optimization for Multiple Image Integration
Yamauchi Tomohiro; Matsuoka Ryo; Baba Tatsuya; Okuda Masahiro
Proceedings of the IEICE General Conference, The Institute of Electronics, Information and Communication Engineers, 2013 93 - 93, 05 Mar. 2013 - D-11-70 Noise Reduction with Flash Image Using Convex Optimization
Baba Tatsuya; Matsuoka Ryo; Shirai Keiichiro; Okuda Masahiro
Proceedings of the IEICE General Conference, The Institute of Electronics, Information and Communication Engineers, 2013(2) 70 - 70, 05 Mar. 2013 - A Study on Noise Suppression Using Flash Images
MATSUOKA Ryo; BABA Tatsuya; SHIRAI Keiichiro; OKUDA Masahiro
Technical report of IEICE. RCS, The Institute of Electronics, Information and Communication Engineers, 112(424) 7 - 11, 31 Jan. 2013 - DESIGN OF FIR FILTERS CONSIDERING SPARSITY IN COEFFICIENTS
Matsuoka Ryo; Okuda Masahiro
信号処理シンポジウム講演論文集, [電子情報通信学会信号処理研究専門委員会], 27 592 - 595, 28 Nov. 2012 - Restoration of low radiance region by ash image fusion
馬場 達也; 白井 啓一郎; 奥田 正浩
信号処理シンポジウム講演論文集, [電子情報通信学会信号処理研究専門委員会], 27 51 - 56, 28 Nov. 2012 - High Dynamic Range Images Processing with MATLAB
Masahiro Okuda
Kyokai Joho Imeji Zasshi/Journal of the Institute of Image Information and Television Engineers, 映像情報メディア学会, 66(1) 61 - 64, 01 Sep. 2012 - A Study on Two-layer Coding for HDR Images with Multiple Tone-mapping Effects
神納 貴生; 渡辺 大也; 奥田 正浩
電子情報通信学会技術研究報告 : 信学技報, 電子情報通信学会, 112(113) 19 - 24, 02 Jul. 2012 - A Study on Two-layer Coding for HDR Images with Multiple Tone-mapping Effects
神納 貴生; 渡辺 大也; 奥田 正浩
電子情報通信学会技術研究報告 : 信学技報, 電子情報通信学会, 112(114) 19 - 24, 02 Jul. 2012 - A Study on Two-layer Coding for HDR Images with Multiple Tone-mapping Effects
神納 貴生; 渡辺 大也; 奥田 正浩
電子情報通信学会技術研究報告 : 信学技報, 電子情報通信学会, 112(115) 19 - 24, 02 Jul. 2012 - A Study on Two-layer Coding for HDR Images with Multiple Tone-mapping Effects
神納 貴生; 渡辺 大也; 奥田 正浩
電子情報通信学会技術研究報告 : 信学技報, 電子情報通信学会, 112(116) 19 - 24, 02 Jul. 2012 - A-4-9 Consideration about High Dynamic Range Image Generation Technique for Noise Removal
Matsuoka Ryo; Jinno Takao; Okuda Masahiro
Proceedings of the IEICE General Conference, The Institute of Electronics, Information and Communication Engineers, 2012 106 - 106, 06 Mar. 2012 - D-11-39 High contrast tone mapping and application of Two Layer HDR Cording method
Watanabe Hiroya; JINNO Takao; Okuda Masahiro
Proceedings of the IEICE General Conference, The Institute of Electronics, Information and Communication Engineers, 2012(2) 39 - 39, 06 Mar. 2012 - Multiple Bit-Depth Representation Based on Bilateral
JINNO Takao; OKUDA Masahiro; ADAMI Nicola
The IEICE transactions on information and systems (Japanese edetion), The Institute of Electronics, Information and Communication Engineers, 94(12) 1986 - 1988, 01 Dec. 2011 - Two-Layer Coding of HDR Images by Using a Bilateral Filter
ANNAKA Dai; KIKUCHI Hisakazu; OKUDA Masahiro
電子情報通信学会技術研究報告. IE, 画像工学, 111(284) 25 - 30, 04 Nov. 2011 - Two-Layer Coding of HDR Images by Using a Bilateral Filter
ANNAKA Dai; KIKUCHI Hisakazu; OKUDA Masahiro
IEICE technical report. Image engineering, The Institute of Electronics, Information and Communication Engineers, 111(284) 25 - 30, 04 Nov. 2011 - Two-Layer Coding of HDR Images by Using a Bilateral Filter
安中 大; 菊池 久和; 奥田 正浩
映像情報メディア学会技術報告, 映像情報メディア学会, 35(45) 25 - 30, Nov. 2011 - A Stady on Three Layer HDR Coding Method using Two Tone-mapping Algorithms
JINNO Takao; OKUDA Masahiro
IEICE technical report. Signal processing, The Institute of Electronics, Information and Communication Engineers, 111(104) 73 - 77, 23 Jun. 2011 - A Steady on Three Layer HDR Coding Method using Two Tone-mapping Algorithms
JINNO Takao; OKUDA Masahiro
IEICE technical report. Circuits and systems, The Institute of Electronics, Information and Communication Engineers, 111(102) 73 - 77, 23 Jun. 2011 - A Stady on Three Layer HDR Coding Method using Two Tone-mapping Algorithms
JINNO Takao; OKUDA Masahiro
Technical report of IEICE. VLD, The Institute of Electronics, Information and Communication Engineers, 111(103) 73 - 77, 23 Jun. 2011 - A Stady on Three Layer HDR Coding Method using Two Tone-mapping Algorithms
JINNO Takao; OKUDA Masahiro
Mathematical Systems Science and its Applications : IEICE technical report, The Institute of Electronics, Information and Communication Engineers, 111(105) 73 - 77, 23 Jun. 2011 - The Object-Aware Tone Mapping for HDR Surveillance System
JINNO Takao; OKUDA Masahiro
The Transactions of the Institute of Electronics, Information and Communication Engineers. A, The Institute of Electronics, Information and Communication Engineers, 94(6) 426 - 429, 01 Jun. 2011 - A-4-8 Integration of multiple-exposure image and consideration concerning denoising
Matsuoka Ryo; Jinno Takao; Okuda Masahiro
Proceedings of the IEICE General Conference, The Institute of Electronics, Information and Communication Engineers, 2011 86 - 86, 28 Feb. 2011 - A-4-12 An Object-Aware Dynamic Range Compression Using a Filter Map
Jinno Takao; Kirishima Yoshiaki; Okuda Masahiro
Proceedings of the IEICE General Conference, The Institute of Electronics, Information and Communication Engineers, 2011 90 - 90, 28 Feb. 2011 - A-4-13 Expression of multiplex bit depth Images using bilateral filter
Fujiki Takuya; Okuda Masahiro; Jinno Takao
Proceedings of the IEICE General Conference, The Institute of Electronics, Information and Communication Engineers, 2011 91 - 91, 28 Feb. 2011 - A Study on Local Tonemapping Using Multiple Lowpass Filters
JINNO Takao; KIRISHIMA Yoshiaki; OKUDA Masahiro
IEICE technical report. Signal processing, The Institute of Electronics, Information and Communication Engineers, 110(368) 31 - 36, 13 Jan. 2011 - A Study on Local Tonemapping Using Multiple Lowpass Filters
JINNO Takao; KIRISHIMA Yoshiaki; OKUDA Masahiro
Technical report of IEICE. RCS, The Institute of Electronics, Information and Communication Engineers, 110(369) 31 - 36, 13 Jan. 2011 - Adaptive Gamma Curves for High Contrast HDR Video Tonemapping (システムLSI設計技術(SLDM) Vol.2010-SLDM-146)
神納 貴生; 毛利 和弥; 奥田 正浩
情報処理学会研究報告, 情報処理学会, 2010(4) 4p , Dec. 2010 - Adaptive Gamma Curves for High Contrast HDR Video Tonemapping
JINNO Takao; MOURI Kazuya; OKUDA Masahiro
IEICE technical report. Image engineering, The Institute of Electronics, Information and Communication Engineers, 110(217) 85 - 88, 28 Sep. 2010 - Adaptive Gamma Curves for High Contrast HDR Video Tonemapping
JINNO Takao; MOURI Kazuya; OKUDA Masahiro
Technical report of IEICE. ICD, The Institute of Electronics, Information and Communication Engineers, 110(216) 85 - 88, 28 Sep. 2010 - Adaptive Gamma Curves for High Contrast HDR Video Tonemapping
JINNO Takao; MOURI Kazuya; OKUDA Masahiro
IEICE technical report. Signal processing, The Institute of Electronics, Information and Communication Engineers, 110(215) 85 - 88, 28 Sep. 2010 - High Dynamic Range Image Processing
OKUDA Masahiro
The Journal of the Institute of Electronics, Information, and Communication Engineers, 一般社団法人電子情報通信学会, 93(2) 139 - 144, 01 Feb. 2010 - High Dynamic Range Image Coding
Okuda Masahiro
ITEJ, The Institute of Image Information and Television Engineers, 64(3) 299 - 305, 2010 - A Study on Expanding Dynamic Range of Video Using Stereo Camera
JINNO Takao; UENO Tatsuya; OKUDA Masahiro
IEICE technical report. Signal processing, The Institute of Electronics, Information and Communication Engineers, 109(202) 89 - 94, 17 Sep. 2009 - A Study on Expanding Dynamic Range of Video Using Stereo Camera
JINNO Takao; UENO Tatsuya; OKUDA Masahiro
IEICE technical report, The Institute of Electronics, Information and Communication Engineers, 109(203) 89 - 94, 17 Sep. 2009 - CDS-1-5 MOTION BLUR FREE HDRI ACQUISITION
Jinno Takao; Okuda Masahiro
Proceedings of the IEICE General Conference, The Institute of Electronics, Information and Communication Engineers, 2009(2) "S - 9"-"S-10", 04 Mar. 2009 - CDS-1-4 High Dynamic Range Image/Video Coding optimized for tone-mapped images
Kaida Hironori; Adami Nicola; Okuda Masahiro
Proceedings of the IEICE General Conference, The Institute of Electronics, Information and Communication Engineers, 2009(2) "S - 7"-"S-8", 04 Mar. 2009 - Pseudo High Dynamic Range Image Acquisition Using a Single Image
JINNO Takao; OKUDA Masahiro
ITE Technical Report, The Institute of Image Information and Television Engineers, 32(54) 41 - 45, 28 Nov. 2008 - Pseudo High Dynamic Range Image Acquisition Using a Single Image
JINNO Takao; OKUDA Masahiro
IEICE technical report. Image engineering, The Institute of Electronics, Information and Communication Engineers, 108(324) 41 - 45, 21 Nov. 2008 - Ghost Free Image Acquisition Technique for High Dynamic Range Images
JINNO Takao; OKUDA Masahiro
ITE Technical Report, The Institute of Image Information and Television Engineers, 32(21) 15 - 18, 26 May 2008 - A Mesh Parameterization Method for Preserving Shape Details and Texture Qualities
SHIRAI Keiichiro; ITO Takanori; IKEHARA Masaaki; OKUDA Masahiro
The Transactions of the Institute of Electronics, Information and Communication Engineers. A, The Institute of Electronics, Information and Communication Engineers, 90(9) 705 - 714, 01 Sep. 2007 - REAL TIME 3D IMAGE RECONSTRUCTION USING A POING CLOUD
KAJITANI Masaharu; NAKAGAWA Naoko; OKUDA Masahiro
IEICE technical report, The Institute of Electronics, Information and Communication Engineers, 106(449) 205 - 210, 03 Jan. 2007 - Area-distribution Uniformizing Parameterization for Preserving Features of 3D Meshes
SHIRAI Keiichiro; ITO Takanori; IKEHARA Masaaki; OKUDA Masahiro
ITE technical report, 映像情報メディア学会, 30(63) 53 - 58, 01 Dec. 2006 - Area-distribution Uniformizing Parameterization for Preserving Features of 3D Meshes
SHIRAI Keiichiro; ITO Takanori; IKEHARA Masaaki; OKUDA Masahiro
IEICE technical report. Image engineering, The Institute of Electronics, Information and Communication Engineers, 106(398) 53 - 58, 24 Nov. 2006 - Fast Cylindrical Mapping of 3D Model's Geometry by Cylindrical Z-Buffering
SHIRAI Keiichiro; OKUDA Masahiro; IKEHARA Masaaki
The Transactions of the Institute of Electronics, Information and Communication Engineers. A, The Institute of Electronics, Information and Communication Engineers, 89(7) 629 - 638, 01 Jul. 2006 - Optimal Inverse Tone Mapping Function for High Dynamic Range Image Coding
SHIMOKAWA Hirofumi; OKUDA Masahiro
ITE technical report, 映像情報メディア学会, 30(33) 13 - 16, 27 Jun. 2006 - A Study on Positioning System of 3D Maps Based on Texture Retrieval
OTA Mitsuhiro; IWAMARU Yuko; OKUDA Masahiro
ITE technical report, 映像情報メディア学会, 30(33) 17 - 20, 27 Jun. 2006 - A trick for accurate differentiation at low sampling rates
KHAN Ishtiaq Rasool; OKUDA Masahiro
IEICE technical report, The Institute of Electronics, Information and Communication Engineers, 105(637) 61 - 66, 06 Mar. 2006 - Real Time 3D Avatar Transmission Using Cylinder Mapping
TAKAHASHI Shinichiro; KAJITANI Masaharu; KHAN Ishtiaq Rasool; OKUDA Masahiro
ITE technical report, 映像情報メディア学会, 30(17) 47 - 50, 25 Feb. 2006 - Area-distribution uniformizing parameterization for preserving features of 3D meshes
K. Shirai; T. Ito; M. Ikehara; M. Okuda
2006 IEEE 12TH DIGITAL SIGNAL PROCESSING WORKSHOP & 4TH IEEE SIGNAL PROCESSING EDUCATION WORKSHOP, VOLS 1 AND 2, IEEE, 106(398) 23 - 28, 2006 - AT-1-3 3D Images as Time Series
Okuda Masahiro
Proceedings of the Society Conference of IEICE, The Institute of Electronics, Information and Communication Engineers, 2005 "SS - 13"-"SS-14", 07 Sep. 2005 - A Study on Classification of Objects in 3D Urban Models
KHAN Ishtiaq Rasool; OKUDA Masahiro
IEICE technical report. Signal processing, The Institute of Electronics, Information and Communication Engineers, 105(175) 51 - 54, 08 Jul. 2005 - Position Based Keyframe Extraction Using Frame Decimation
Togawa Hideyuki; Okuda Masahiro
IEICE technical report. WBS, Wideband System, The Institute of Electronics, Information and Communication Engineers, 105(177) 27 - 32, 08 Jul. 2005 - Fast Registration Algorithms of Range Images Based on Multiresolution Analysis
UTO Toshiyuki; OKUDA Masahiro; IKEHARA Masaaki; TAKAHASHI Shinichi; OHUE Kenji
IEICE technical report. WBS, Wideband System, The Institute of Electronics, Information and Communication Engineers, 105(177) 33 - 38, 08 Jul. 2005 - LOD of Textures on 3D Maps Based on Representative Viewpoints
Inatsuka Hiroyuki; Uchino Makoto; Okuda Masahiro
IEICE technical report. WBS, Wideband System, The Institute of Electronics, Information and Communication Engineers, 105(177) 55 - 60, 08 Jul. 2005 - Position Based Keyframe Extraction Using Frame Decimation
Togawa Hideyuki; Okuda Masahiro
IEICE technical report. Signal processing, The Institute of Electronics, Information and Communication Engineers, 105(175) 27 - 32, 08 Jul. 2005 - Fast Registration Algorithms of Range Images Based on Multiresolution Analysis
UTO Toshiyuki; OKUDA Masahiro; IKEHARA Masaaki; TAKAHASHI Shinichi; OHUE Kenji
IEICE technical report. Signal processing, The Institute of Electronics, Information and Communication Engineers, 105(175) 33 - 38, 08 Jul. 2005 - LOD of Textures on 3D Maps Based on Representative Viewpoints
Inatsuka Hiroyuki; Uchino Makoto; Okuda Masahiro
IEICE technical report. Signal processing, The Institute of Electronics, Information and Communication Engineers, 105(175) 55 - 60, 08 Jul. 2005 - Fast 3D Geometry-Cylinder Mapping Method
SHIRAI Keiichiro; IKEHARA Masaaki; OKUDA Masahiro
IEICE technical report. Circuits and systems, The Institute of Electronics, Information and Communication Engineers, 104(115) 7 - 11, 11 Jun. 2004 - Fast 3D Geometry-Cylinder Mapping Method
SHIRAI Keiichiro; IKEHARA Masaaki; OKUDA Masahiro
IEICE technical report. Signal processing, The Institute of Electronics, Information and Communication Engineers, 104(119) 7 - 11, 11 Jun. 2004 - Fast 3D Geometry-Cylinder Mapping Method
SHIRAI Keiichiro; IKEHARA Masaaki; OKUDA Masahiro
Technical report of IEICE. VLD, The Institute of Electronics, Information and Communication Engineers, 104(117) 7 - 11, 11 Jun. 2004 - Design of Equiripple Minimum Phase FIR Filters with Controlling Ripple Ratios
OKUDA Masahiro; IKEHARA Masaaki; TAKAHASHI Shin-ichi
IEICE technical report. Signal processing, The Institute of Electronics, Information and Communication Engineers, 104(34) 19 - 22, 06 May 2004 - Similarity Detection of 3D Models by using 2D Regular Grid
Nagatomo Kyoko; Okuda Masahiro; Ikehara Masaaki; Takahashi Shin-ichi
Technical report of IEICE. SAT, The Institute of Electronics, Information and Communication Engineers, 103(549) 91 - 96, 08 Jan. 2004 - Similarity Detection of 3D Models by using 2D Regular Grid
Nagatomo Kyoko; Okuda Masahiro; Ikehara Masaaki; Takahashi Shin-ichi
Technical report of IEICE. DSP, The Institute of Electronics, Information and Communication Engineers, 103(546) 91 - 96, 08 Jan. 2004 - Similarity Detection of 3D Models by using 2D Regular Grid
Nagatomo Kyoko; Okuda Masahiro; Ikehara Masaaki; Takahashi Shin-ichi
Technical report of IEICE. RCS, The Institute of Electronics, Information and Communication Engineers, 103(552) 91 - 96, 08 Jan. 2004 - Vertex rearrangement problem for regularizing 3D meshes
NISHINO Tomoatsu; OKUDA Masahiro; IKEHARA Masaaki
情報処理学会研究報告. SLDM, [システムLSI設計技術], Information Processing Society of Japan (IPSJ), 2003(105) 99 - 104, 23 Oct. 2003 - Vertex rearrangement problem for regularizing 3D meshes
NISHINO Tomoatsu; OKUDA Masahiro; IKEHARA Masaaki
Technical report of IEICE. DSP, The Institute of Electronics, Information and Communication Engineers, 103(384) 7 - 12, 17 Oct. 2003 - Vertex rearrangement problem for regularizing 3D meshes
NISHINO Tomoatsu; OKUDA Masahiro; IKEHARA Masaaki
IEICE technical report. Image engineering, The Institute of Electronics, Information and Communication Engineers, 103(384) 7 - 12, 17 Oct. 2003 - Vertex rearrangement problem for regularizing 3D meshes
NISHINO Tomoatsu; OKUDA Masahiro; IKEHARA Masaaki
Technical report of IEICE. DSP, The Institute of Electronics, Information and Communication Engineers, 103(380) 7 - 12, 17 Oct. 2003 - Vertex rearrangement problem for regularizing 3D meshes
NISHINO Tomoatsu; OKUDA Masahiro; IKEHARA Masaaki
Technical report of IEICE. ICD, The Institute of Electronics, Information and Communication Engineers, 103(382) 7 - 12, 17 Oct. 2003 - THE TEXTURE PROGRESSIVE CODING BASED ON RANGE DATA
OSABE Taito; SHIRAI Keiichiro; UTO Toshiyuki; OKUDA Masahiro; IKEHARA Masaaki; TAKAHASHI Shin-ichi
IEICE technical report. Circuits and systems, The Institute of Electronics, Information and Communication Engineers, 103(143) 85 - 90, 20 Jun. 2003 - THE TEXTURE PROGRESSIVE CODING BASED ON RANGE DATA
OSABE Taito; SHIRAI Keiichiro; UTO Toshiyuki; OKUDA Masahiro; IKEHARA Masaaki; TAKAHASHI Shin-ichi
Technical report of IEICE. DSP, The Institute of Electronics, Information and Communication Engineers, 103(147) 85 - 90, 20 Jun. 2003 - THE TEXTURE PROGRESSIVE CODING BASED ON RANGE DATA
OSABE Taito; SHIRAI Keiichiro; UTO Toshiyuki; OKUDA Masahiro; IKEHARA Masaaki; TAKAHASHI Shin-ichi
Technical report of IEICE. VLD, The Institute of Electronics, Information and Communication Engineers, 103(145) 85 - 90, 20 Jun. 2003 - Compression of 3D Models by Remesh on Texture Images
OKUDA Masahiro; NAGATOMO Kyoko; IKEHARA Masaaki; TAKAHASHI Shin-ichi
IEICE Trans. Inf. & Syst., D, The Institute of Electronics, Information and Communication Engineers, 86(6) 1110 - 1115, 01 Jun. 2003 - テクスチャ付き3Dメッシュの正則化--画像処理技術の3Dメッシュへの応用
奥田 正浩; 高橋 進一; 池原 雅章
画像ラボ, 日本工業出版, 14(6) 1 - 4, Jun. 2003 - Wavelet Packet Algorithms Using Quadtree-Based Embedded Image Coding
UTO Toshiyuki; OKUDA Masahiro; IKEHARA Masaaki
The Transactions of the Institute of Electronics, Information and Communication Engineers. A, The Institute of Electronics, Information and Communication Engineers, 86(2) 111 - 118, 01 Feb. 2003 - 3D Model Reconstruction from An Image and Its Application for Coding.
INAGAKI Kohji; OKUDA Masahiro; IKEHARA Masaaki; TAKAHASHI Shin-ichi
Technical report of IEICE. SAT, The Institute of Electronics, Information and Communication Engineers, 102(547) 135 - 140, 09 Jan. 2003 - 3D Model Reconstruction from An Image and Its Application for Coding.
INAGAKI Kohji; OKUDA Masahiro; IKEHARA Masaaki; TAKAHASHI Shin-ichi
Technical report of IEICE. DSP, The Institute of Electronics, Information and Communication Engineers, 102(544) 135 - 140, 09 Jan. 2003 - 3D Model Reconstruction from An Image and Its Application for Coding.
INAGAKI Kohji; OKUDA Masahiro; IKEHARA Masaaki; TAKAHASHI Shin-ichi
Technical report of IEICE. RCS, The Institute of Electronics, Information and Communication Engineers, 102(550) 135 - 140, 09 Jan. 2003 - PROGRESSIVE CODING OF TEXTURED 3D MODELS
Nagatomo Kyoko; Okuda Masahiro; Ikehara Masaaki; Takahashi Shin-ichi
ITE Technical Report, The Institute of Image Information and Television Engineers, 26(54) 1 - 4, 25 Jul. 2002 - A Study on the Best Approximation of Minimum Phase FIR Digital Filters
Okuda Masahiro; Ikehara Masaaki; Takahashi Shin-ichi
Proceedings of the IEICE General Conference, The Institute of Electronics, Information and Communication Engineers, 2002 125 - 125, 07 Mar. 2002 - Chebyshev Approximation of Minimum Phase FIR Filters by Transforming Desired Response
OKUDA Masahiro; IKEHARA Masaaki; TAKAHASHI Shin-ichi
Technical report of IEICE. SAT, The Institute of Electronics, Information and Communication Engineers, 101(540) 1 - 6, 02 Jan. 2002 - Chebyshev Approximation of Minimum Phase FIR Filters by Transforming Desired Response
OKUDA Masahiro; IKEHARA Masaaki; TAKAHASHI Shin-ichi
Technical report of IEICE. DSP, The Institute of Electronics, Information and Communication Engineers, 101(537) 1 - 6, 02 Jan. 2002 - Chebyshev Approximation of Minimum Phase FIR Filters by Transforming Desired Response
OKUDA Masahiro; IKEHARA Masaaki; TAKAHASHI Shin-ichi
Technical report of IEICE. RCS, The Institute of Electronics, Information and Communication Engineers, 101(543) 1 - 6, 02 Jan. 2002 - Progressive coding of textured 3D models
K Nagatomo; D Yoshikai; M Okuda; M Ikehara; S Takahashi
IEEE INTERNATIONAL CONFERENCE ON MULTIMEDIA AND EXPO, VOL I AND II, PROCEEDINGS, IEEE, 195 357 - 360, 2002 - Lossless Transforms and Lossy Transforms Using IIR Filters and Their Applicationto Image Coding
UTO Toshiyuki; KOUNO Yutaka; OKUDA Masahiro; IKEHARA Masaaki; TAKAHASHIl Shin-ichi
The Transactions of the Institute of Electronics, Information and Communication Engineers. A, The Institute of Electronics, Information and Communication Engineers, 84(7) 893 - 900, 01 Jul. 2001 - Measuring error on 3D meshes using pixel division
Inagaki Kohji; Okuda Masahiro; Ikehara Masaaki; Takahashi Shin-ichi
IEICE technical report. Circuits and systems, The Institute of Electronics, Information and Communication Engineers, 100(718) 1 - 7, 23 Mar. 2001 - Measuring error on 3D meshes using pixel division
Inagaki Kohji; Okuda Masahiro; Ikehara Masaaki; Takahashi Shin-ichi
Technical report of IEICE. DSP, The Institute of Electronics, Information and Communication Engineers, 100(720) 1 - 7, 23 Mar. 2001 - Measuring error on 3D meshes using pixel division
Inagaki Kohji; Okuda Masahiro; Ikehara Masaaki; Takahashi Shin-ichi
IEICE technical report. Communication systems, The Institute of Electronics, Information and Communication Engineers, 100(722) 1 - 7, 23 Mar. 2001 - Zerotree Coding with Unequal Error Correcting Codes
Uto Toshiyuki; Okuda Masahiro; Ikehara Masaaki; Takahashi Shin-ichi
IEICE technical report. Circuits and systems, The Institute of Electronics, Information and Communication Engineers, 100(717) 81 - 87, 22 Mar. 2001 - Zerotree Coding with Unequal Error Correcting Codes
Uto Toshiyuki; Okuda Masahiro; Ikehara Masaaki; Takahashi Shin-ichi
Technical report of IEICE. DSP, The Institute of Electronics, Information and Communication Engineers, 100(719) 81 - 87, 22 Mar. 2001 - Zerotree Coding with Unequal Error Correcting Codes
Uto Toshiyuki; Okuda Masahiro; Ikehara Masaaki; Takahashi Shin-ichi
IEICE technical report. Communication systems, The Institute of Electronics, Information and Communication Engineers, 100(721) 81 - 87, 22 Mar. 2001 - Realization of an Orthogonal Filter with Hypercomplex Coefficients
OKUDA Masahiro; KAMATA Masato; TAKAHASHI Shin-ichi
The Transactions of the Institute of Electronics, Information and Communication Engineers. A, The Institute of Electronics, Information and Communication Engineers, 83(5) 458 - 465, 25 May 2000 - Equiripple Design in Complex Domain for FIR Digital Filters by Transforming Desired Response
OKUDA Masahiro; KIYOSE Kageyuki; IKEHARA Masaaki; TAKAHASHI Shin-ichi
The Transactions of the Institute of Electronics, Information and Communication Engineers. A, The Institute of Electronics, Information and Communication Engineers, 82(8) 1312 - 1319, 25 Aug. 1999 - On the Design of Linear Phase IIR Filter Banks and the Convolution technique
Okuda Masahiro; Ikehara Masaaki; Takahashi Shin-ichi
Technical report of IEICE. DSP, The Institute of Electronics, Information and Communication Engineers, 98(79) 29 - 35, 28 May 1998 - (
The present and future situation in research)
池原 雅章; 奥田 正浩
Technical report of IEICE. DSP, The Institute of Electronics, Information and Communication Engineers, 98(79) 62 - 63, 28 May 1998 - Least-Squares Approach for IIR Digital Filters and Application to Equiripple Solutions
OKUDA Masahiro; IKEHARA Masaaki; TAKAHASHI Shin-ichi
The Transactions of the Institute of Electronics, Information and Communication Engineers. A, The Institute of Electronics, Information and Communication Engineers, 80(4) 612 - 619, 25 Apr. 1997 - The Design of 2-Channel Perfect Reconstruction IIR Filter Banks with Causality
OKUDA Masahiro; FUKUOKA Takashi; IKEHARA Masaaki; TAKAHASHI Shin-ichi
The Transactions of the Institute of Electronics, Information and Communication Engineers. A, The Institute of Electronics, Information and Communication Engineers, 80(3) 454 - 462, 25 Mar. 1997 - Least-Squares Method for 2-D FIR Digital Filters without Matrix Inversions
OKUDA Masahiro; IKEHARA Masaaki; TAKAHASHI Shin-ichi
The Transactions of the Institute of Electronics, Information and Communication Engineers. A, The Institute of Electronics, Information and Communication Engineers, 80(3) 463 - 471, 25 Mar. 1997 - Analytical Design Methods for Multidimensional FIR(IIR) Filters
Okuda Masahiro; Ikehara Masaaki; Takahashi Shin-ichi
Technical report of IEICE. DSP, The Institute of Electronics, Information and Communication Engineers, 96(1) 1 - 8, 12 Apr. 1996 - Approximation of Group Delay Response of Allpass Filters Using Weighted Least Square Method
Okuda Masahiro; Matsuyama Kojiro; Ikehara Masaaki
The Transactions of the Institute of Electronics, Information and Communication Engineers. A, The Institute of Electronics, Information and Communication Engineers, 78(9) 1103 - 1110, 25 Sep. 1995 - Complex Chebyshev Approximation for IIR Digital Filters
Okuda Masahiro; Ikehara Masaaki; Takahashi Shin-ichi
The Transactions of the Institute of Electronics, Information and Communication Engineers. A, The Institute of Electronics, Information and Communication Engineers, 78(6) 651 - 658, 25 Jun. 1995 - A-83 Complex Chebyshev Approximation for IIR digital filter, Using Remez Algorithm
OKUDA Masahiro; IKEHARA Masaaki; TAKAHASHI Shin-ichi
電子情報通信学会秋季大会講演論文集, The Institute of Electronics, Information and Communication Engineers, 1994 83 - 83, 05 Sep. 1994
Books etc
- High Dynamic Range Video, From Acquisition, to Display and Applications
F. Gurri; M. Okuda
Elsevier, 2016, "HDR Image watermaking," the 22nd book chapter
Research Projects
- Reflectance Estimation and Dataset construction using multiple light sources
Okuda Masahiro
① We devised a method of separating an image into the reflectance and the shadow image by using flash and no-flash images. Both subjective evaluation and objective evaluation showed that the performance is superior to conventional methods. Also, by developing this approach, we proposed a method to reduce blur in the dark by combining the image using flash and the image taken with high ISO sensitivity. We formulated the image integration problem using Local Linear Model and succeeded in effectively solving by using convex optimization method. ② We proposed a method to obtain the reflectance image at high speed by using the spectral information of each pixel. Three years of external presentation results were 9 journals of academic journals and 29 conference presentations., Japan Society for the Promotion of Science, Grants-in-Aid for Scientific Research, 2015/04 -2018/03, Grant-in-Aid for Scientific Research (C), The University of Kitakyushu - A study on surveillance system with high dynamic range cameras
OKUDA Masahiro
We introduced the restoration algorithm for the high dynamic range image denoising. We proposed a new weighting strategy for integrating multiple images, which is capable of reducing quantization error and sensor noises, and then we have examined the validity of the algorithm. The second approach is the development of image integration for a flash/no-flash image pair, in which we formulate the integration problem as a convex optimization problem. Our method has a great advantage that it can handle even misaligned image pairs. Moreover we proposed an intrinsic image decomposition algorithm that can reduce the change of saturation when tone-mapping the image., Japan Society for the Promotion of Science, Grants-in-Aid for Scientific Research, 2012/04 -2015/03, Grant-in-Aid for Scientific Research (C), The University of Kitakyushu - A study on real time compression of 3D images based on planar approximation using PC clusters
OKUDA Masahiro
We have propose coding algorithms for 3D meshes using mesh parameterization, and high dynamic range images indispensable for high fidelity 3D mesh rendering. We have achieved remarkable outcome for both of the two topics, Japan Society for the Promotion of Science, Grants-in-Aid for Scientific Research, 2008 -2011, Grant-in-Aid for Young Scientists (B), The University of Kitakyushu - 3次元動画の漸進的モデリングとその実時間伝送に関する研究
奥田 正浩
平成19年度の研究成果は以下の通りである。 1.3次元モデルのパラメータ化に関する研究:メッシュ構造で表現される3次元モデルを平面描画するためのパラメータ化手法を提案した。従来の手法は3次元モテルの形状を忠実に再現するか,テクスチャマッピングの際の品質を保証するかのどちらか一方の特徴のみを有していたが,本手法は形状とテクスチャの品質をともに保持する。また,平面化された3次元モデルを画像化し圧縮する手法も併せて開発した。 2,シリンダマッピングを用いた3次元モデルの実時間伝送:人間の顔部分の3次元映像をリアルタイムで取得する際に,複数枚の距離画像がオーバーラップし画質を劣化させるという問題があった。本研究ではシリンダマッピングを用いてこの問題を解決した。高速マッピング手法とオーバーラップ除去手法を考案し,実時間モデリングシステムに組み込んだ。 3.3次元地図のLODに関する研究:.概して3次元地図のデータ量の80%以上はテクスチヤが占める。本手法ではテクスチャの解像度を削減し3次元地図全体のテータ量を制御する手法を提案した。"目立つ"テクスチャや特徴のあるテクスチャを自動識別してカテゴリ化し,各カテゴリに属する画像に異なる解像度を割り当てることで画質を維持したままレンダリングの際のデータ量を削減することに成功した。 4,高ダイナミックレンジ画像の取得:ヒトの視覚特性と同等のダイナミックレンジを持つ画像の取得法を考案した。オクルージョン,白飛び,黒潰れを考慮した動き補正を伴う画像統合法を提案し,従来の手法や最先端のソフトウェアよりも高精細な画像が得られることを確認した。, 日本学術振興会, 科学研究費助成事業, 2005 -2007, 若手研究(B), 北九州市立大学 - 解像度、計算量、及び物体領域にスケーラビリティを持つ3次元モデル符号化
奥田 正浩
本年度の研究成果は以下の通りに大別される。 1.高圧縮率符号化のための3Dメッシュのパラメータ化 昨年度に開発したパラメータ手法を更に改善し、符号化を陽に意識したメッシュ正則化手法を提案した。これにより、従来法と比べて見た目の劣化を大幅に削減し、容易に非正則メッシュを正則メッシュに変換することができる。その後、実際に圧縮符号化に応用し、1/80もの圧縮が可能になることを実証した。 2.運動学を用いた動き情報の知的符号化とキーフレーム抽出 昨年度提案した、モーションキャプチャシステムにより取得された人間の動き情報を圧縮符号化する手法をさらに発展させ、圧縮率を大幅に改善した。線形予測を用いて時間域での冗長性を取り除くと同時に、逆運動学を用いて各ノード(関節)間の動きの相関を考慮することにより、高圧縮を実現した。また動きの特徴を抽出し、キーフレームを自動的に抽出する手法を操案した。これにより符号化後のCGアニメーション編集が容易になる。 3.リアルタイム3D映像伝送のための高速符号化手法 近年、リアルタイムで3D映像をモデリングする研究がいくつかの研究機関で行われ注目を浴びている。本研究では、そのモデリング後の3D映像を遠隔地に伝送するための圧縮符号化手法について研究を進め、一定の成果をあげた。実際にリアルタイムでの伝送実験を行い、符号化、モデリングなどの処理を含めて、約7fpsで動作することを確かめた。 その他にもディジタルフィルタに関する研究で業績をあげ、論文誌採択4件、国際会議発表12件(うち2件は来年度に発表)、国内発表4件の対外発表を行った。また、3Dモデル圧縮と、パラメータに関する特許を2件申請準備中(今年度末までに申請予定)である。, 日本学術振興会, 科学研究費助成事業, 2002 -2004, 若手研究(B), 北九州市立大学