Papers (refereed)

1. Shape Reconstruction from an Endoscope Image by Shape-from-Shading Technique for a Point Light Source at the Projection Center, K. Deguchi and T. Okatani, Proceedings of Workshop on Mathematical Methods in Biomedical Image Analysis, 290-298 (1996)

2. Reconstructing Shape from Shading with a Point Light Source at the Projection Center: Shape Reconstruction from an Endoscope Image, Takayuki OKATANI and Koichiro DEGUCHI, Proceedings of International Conference on Pattern Recognition(ICPR), 830-834 (1996)

3. 内視鏡画像からの陰影に基づく立体形状復元, 岡谷貴之,出口光一郎, 計測自動制御学会論文集,33,10,1035-1042 (1997)

4. Shape Reconstruction from an Endoscope Image by Shape from Shading Technique for a Point Light Source at the Projection Center, Takayuki Okatani and Koichiro Deguchi, Computer Vision and Image Understanding, 66, 2, 119-131 (1997)

5. On Identification of Singular Points Using Photometric Invariants for Global Shape from Shading Problem, Takayuki OKATANI and Koichiro DEGUCHI, Proceedings of International Conference on Pattern Recognition(ICPR), 1787-1790 (1998)

6. Determination of Sign of Curvature on Surface Having General Reflectance Property Using Unknown Multiple Illumination, Takayuki OKATANI and Koichiro DEGUCHI, Proceedings of Asian Conference on Computer Vision(ACCV), 56-63 (1998)

7. On the Classification of Singular Points for Global Shape from Shading, Takayuki OKATANI and Koichiro DEGUCHI, Proceedings of Asian Conference on Computer Vision(ACCV),  Springer, 48-55 (1998)

8. 複数の画像間の陰影差に基づく曲面のガウス曲率の符号の決定, 岡谷貴之,出口光一郎, 情報処理学会論文誌,39,6,1965-1972 (1998)

9. Computation of the Sign of the Gaussian Curvature of a Surface from Multiple Unknown Illumination Images without Knowledge of the Reflectance Property, Takayuki Okatani and Koichiro Deguchi, Computer Vision and Image Understanding, 76, 2, 125-134 (1999)

10. 陰影画像における特異点の種類に関する等濃度曲線の不変性について, 岡谷貴之,出口光一郎,情報処理学会論文誌,40,9,3446-3454 (1999)

11. 非ランバート性拡散反射に対する等高線の発展による陰影からの形状復元, 岡谷貴之,出口光一郎, 情報処理学会論文誌,41,1,92-100 (2000)

12. Estimation of Illumination Distribution Using a Specular Sphere, Takayuki OKATANI and Koichiro DEGUCHI, Proceedings of International Conference on Pattern Recognition(ICPR), 596-599 (2000)

13. Closed Form Solution of Local Shape From Shading at Critical Points, TAKAYUKI OKATANI and KOICHIRO DEGUCHI, International Journal of Computer Vision, 40, 2 169-178 (2000)

14. Recovering Camera Motion from Image Sequence Based on Registration of Silhouette Cones: Shape from Silhouette Using a Mobile Camera with a Gyro Sensor, Takayuki OKATANI and Koichiro DEGUCHI, Proceedings of IAPR Workshop on Machine Vision Applications, 451-454 (2000)

15. Yet Another Appearance-Based Method for Pose Estimation Based on a Linear Model, Takayuki OKATANI and Koichiro DEGUCHI, Proceedings of IAPR Workshop on Machine Vision Applications, 258-261 (2000)

16. On Uniqueness of Solutions of the Three-Light-Source Photometric Stereo: Conditions on Illumination Configuration and Surface Reflectance, Takayuki Okatani and Koichiro Deguchi, Computer Vision and Image Understanding, 81, 221-226 (2001)

17. 反射鏡を利用した全方位カメラの画像照度について, 岡谷貴之,出口光一郎, 情報処理学会論文誌:コンピュータビジョンとイメージメディア, 42, SIG13, 71-80 (2001)

18. On Photometric Aspects of Catadioptric Cameras, Proceedings of IEEE Computer Society Conference on Computer Vision and Pattern Recognition(CVPR), Takayuki Okatani and Koichiro Deguchi, 1106-1113 (2001)

19. カメラモデルの段階的切り換えによる多視点カメラシステムのセルフキャリブレーション, 岡谷貴之,久保田俊作,出口光一郎, 情報処理学会論文誌:コンピュータビジョンとイメージメディア, 43, SIG11(CVIM5), 33-42 (2002)

20. Is There Room for Improving Estimation Accuracy of the Structure and Motion Problem?, Takayuki Okatani and Koichiro Deguchi, Proceedings of Statistical Methods in Video Processing Workshop, 25-30 (2002)

21. Robust Estimation of Camera Translation Between Two Images Using a Camera with a 3D Orientation Sensor, Takayuki Okatani and Koichiro Deguchi, Proceedings of International Conference on Pattern Recognition(ICPR), 275-278 (2002)

22. 3-Dimensional Tracking of Multiple Object Motions from Multi-view Image by Mixed-State CONDENSATION Algorithm, Koichiro Deguchi, Koji Hamasaki, Taira Nakajima, and Takayuki Okatani, Proceedings of IAPR Workshop on Machine Vision Applications (2002)

23. Theory of Nuisance Parameter Problems in Computer Vision: Several Examples of Application to Linear Cases, Takayuki Okatani and Koichiro Deguchi, Proceedings of the Workshop on Science of Vision Workshop, 94-100 (2002)

24. A Motion Tracking by Extracting 3D Feature of Moving Objects with Binocular Cooperative Fixation, Yoshinori Satoh, Tomohiro Nakagawa, Takayuki Okatani, and Koichiro Deguchi, Proceedings of International Conference on Intelligent Robots and Systems, 13-181 (2002)

25. Binocular motion tracking by gaze fixation control and three-dimensional shape reconstruction, Yoshinori Satoh, Takayuki Okatani, and Koichiro Deguchi, Advanced Robotics, 17(10), 1057-1072 (2003)

26. Tracking Multiple Three-Dimensional Motions by Using Modified Condensation Algorithm and Multiple Images, Koji Hamasaki, Taira Nakajima, Takayuki Okatani and Koichiro Deguchi, Proceedings of IEEE/RSJ Intelligent Robots and Systems, 236-241 (2003)

27. Autocalibration of a Projector-Screen-Camera System, Takayuki OKATANI and Koichiro DEGUCHI, Proceedings of International Conference on Computer Vision(ICCV),   774-781 (2003).

28. Toward a Statistically Optimal Method for Estimating Geometric Relation from Noisy Data, Takayuki OKATANI and Koichiro DEGUCHI, Proceedings of IEEE Computer Society Conference on Computer Vision and Pattern Recognition(CVPR), I-432- I-439 (2003)

29. 実環境での物体認識のための距離画像マッチング, 長尾影洋, 岡谷貴之, 出口光一郎, 計測自動制御学会論文誌, 40, 1-8 (2004)

30. A Color-based Tracking by Kalman Particle Filter, Yoshinori Satoh, Takayuki Okatani and Koichiro Deguchi, Proceedings of International Conference on Pattern Recognition(ICPR), 502-505 (2004)

31. Object tracking by the mean-shift of regional color distribution combined with the particle-filter algorithm, Koichiro Deguchi, Daisuke Kawanaka, and Takayuki Okatani, Proceedings of International Conference on Pattern Recognition(ICPR), 506-509 (2004)

32. Active construction of 3D map in robot by combining motion and perceived images, Tomohiro Nakagawa, Takayuki Okatani and Koichiro Deguchi, Proceedings of Asian Conference on Computer Vision(ACCV), 563-568 (2004),

33. A Color-based Probabilistic Tracking by Using Graphical Models, Y. Sato, T. Okatani, and K. Deguchi, Proceedings of IEEE/RSJ International Conference on Intelligent Robots and Systems, 631-636 (2004)

34. A Probabilistic Approach to Linear Subspace Fitting for Computer Vision Problems, Takayuki Okatani, Proceedings of Workshop on Generative Model Based Vision, 185-192 (2004)

35. Autocalibration of Projector-Camera System, Takayuki Okatani and Koichiro Deguchi, IEEE Transaction of Pattern Analysis and Machine Intelligence, 27(12) 1845-1855 (2005)

36. 行動と画像変化を結びつけたロボットの空間認識, 中川智洋,岡谷貴之,出口光一郎,日本ロボット学会誌 23巻3号 90-97 (2005)

37. Motion Stabilization of Biped Robot by Gaze Control, Shota Takizawa, Shun Ushida, Takayuki Okatani and Koichiro Deguchi, Proceedings of IAPR Conference on Machine Vision Applications, 324-327 (2005)

38. 2 DOF Motion Stabilization of Biped Robot by Gaze Control Strategy, Shota Takizawa, Shun Ushida, Takayuki Okatani, and Koichiro Deguchi, Proceedings of IEEE/RSJ International Conference on Intelligent Robots and Systems, 3809-3814 (2005)

39. HHMM Based Recognition of Human Activity, Daiki Kawanaka, Takayuki Okatani, and Koichiro Deguchi, IEICE Transactions 89-D(7), 2180-2185 (2006)

40. Video Synchronization Based on Co-occurrence of Appearance Changes in Video Sequences, Manabu Ushizaki, Takayuki Okatani, and Koichiro Deguchi, Proceedings of International Conference on Pattern Recognition (ICPR), 71-74 (2006)

41. The Importance of Gaze Control Mechanism on Vision-based Motion Control of a Biped Robot, Shun Ushida, Kousuke Yoshimi, Takayuki Okatani, Koichiro Deguchi, Proceedings of IEEE/RSJ International Conference on Intelligent Robots and System (IROS), 4447-4452 (2006)

42. Autocalibration of an Ad Hoc Construction of Multi-Projector Displays, Takayuki Okatani and Koichiro Deguchi, Proceedings of International Workshop of Projector Camera Systems, 4-12 (2006)

43. Absolute Phase Measurements using Geometric Constraints between Multiple Cameras and Projectors, Rui Ishiyama, Shizuo Sakamoto, Johji Tajima, Takayuki Okatani and Koichiro Deguchi, Applied Optics 46(17), 3528-3538 (2007)

44. On the Wiberg Algorithm for Matrix Factorization in the Presence of Missing Components, Takayuki Okatani and Koichiro Deguchi, International Journal of Computer Vision 72(3), 329-337 (2007)

45. Estimating Scale of a Scene from a Single Image Based on Defocus Blur and Scene Geometry, Takayuki Okatani and Koichiro Deguchi, Proceedings of IEEE Computer Society Conference on Computer Vision and Pattern Recognition (CVPR), 1-8 (2007)

46. Variational Bayes-Based Approach to Robust Subspace Learning, Takayuki Okatani and Koichiro Deguchi, Proceedings of IEEE Computer Society Conference on Computer Vision and Pattern Recognition (CVPR), 1-8 (2007)

47. Precise 3-D Measurement using Uncalibrated Pattern Projection, Rui Ishiyama, Takayuki Okatani and Koichiro Deguchi, Proceedings of International Conference on Image Processing (ICIP), 225-228 (2007)

48. A Physics-Based Imaging Model of Scanning Electron Microscopes, Kousuke Kamada, Takayuki Okatani, Koichiro Deguchi, Proceedings of IAPR Conference on Machine Vision Applications (MVA), 102-105 (2007)

49. Study of Image Quality of Superimposed Projection Using Multiple Projectors, Takayuki Okatani, Mikio Wada, and Koichiro Deguchi, IEEE Transactions on Image Processing 18(2)  424-429 (2009)

50. Easy Calibration of a Multi-Projector Display System, Takayuki Okatani and Koichiro Deguchi, International Journal of Computer Vision 85(1), 1-18 (2009)

51. 被写界深度ぼけの提示により奥行き感を強化する注視反応型ディスプレイ, 岡谷貴之,石澤昴,出口光一郎, 電子情報通信学会論文誌D J92-D(8), 1298-1307 (2009)

52. On bias correction for geometric parameter estimation in computer vision, Takayuki Okatani and Koichiro Deguchi, Proceedings of IEEE Computer Society Conference on Computer Vision and Pattern Recognition (CVPR), 959-966 (2009)

53. Improving accuracy of geometric parameter estimation using projected score method, Takayuki Okatani and Koichiro Deguchi, Proceedings of International Conference on Computer Vision (ICCV), 1733-1740 (2009)

54. Shape reconstruction by combination of structured-light projection and photometric stereo using a projector-camera system, Tomoya Okazaki, Takayuki Okatani and Koichiro Deguchi, Proc. Pacific-Rim Symposium on Image and Video Technology, 410-422  (2009), Best Student Paper Award

55. A Projector-Camera System for High-Quality Synthesis of Virtual Reflectance on Real Object Surfaces, Tomoya Okazaki, Takayuki Okatani and Koichiro Deguchi, IPSJ Transactions on Computer Vision and Applications, Vol. 2, 71-83 (2010)

56. Flexible Online Calibration for a Mobile-Projector-Camera System, Daisuke Abe, Takayuki Okatani, and Koichiro Deguchi, Proceedings of Asian Conference on Computer Vision (ACCV), 565-579 (2010).

57. Efficient Algorithm for Low-rank Matrix Factorization with Missing Components and Performance Comparison of Latest Algorithms, Takayuki Okatani, Takahiro Yoshida, Koichiro Deguchi, Proceedings of International Conference on Computer Vision(ICCV), 1-8 (2011) [pdf] [MATLAB code]

58. Accurate and robust planar tracking based on a model of image sampling and reconstruction process, Eisuke Ito, Takayuki Okatani, Koichiro Deguchi, Proceedings of The 10th IEEE International Symposium on Mixed and Augmented Reality(ISMAR), 1-8 (2011)

59. Sensing method of total-internal-reflection-based tactile sensor, Momotaro Koike, Satoshi Saga, Takayuki Okatani, Koichiro Deguchi, Proceedings of World Haptics, 615-619 (2011)

60. Hand Gesture Recognition using Histogram of Oriented Gradients and Partial Least Squares Regression, Arindam Misra, Abe Takashi, Takayuki Okatani, Koichiro Deguchi, Proceedings of IAPR Conference on Machine Vision Applications, 479-482 (2011)

61. Optimal integration of photometric and geometric surface measurements using inaccurate reflectance/illumination knowledge, Takayuki Okatani and Koichiro Deguchi, Proceedings of Computer Vision and Pattern Recognition (CVPR) 254-261 (2012)

62. Application of the mean field methods to MRF optimization in computer vision, Masaki Saito, Takayuki Okatani, Koichiro Deguchi, Proceedings of Computer Vision and Pattern Recognition (CVPR), 1680-1687 (2012)[PDF]

63. Creating multi-viewpoint panoramas of streets with sparsely located buildings, Takayuki Okatani, Jun Yanagisawa, Daiki Tetsuka, Ken Sakurada, Koichiro Deguchi, Proceedings of International Conference on Field and Service Robotics, 1-14 (2012)

64. Recognizing Surface Qualities from Natural Images Based on Learning to Rank, Takashi Abe, Takayuki Okatani, Koichiro Deguchi, Proceedings of International Conference on Pattern Recognition (ICPR), 3712-3715 [PDF]

65. Discrete MRF Inference of Marginal Densities for Non-uniformly Discretized Variable Space, Masaki Saito, Takayuki Okatani, and Koichiro Deguchi, Proceedings of Computer Vision and Pattern Recognition (CVPR) (2013) [PDF][supplementary material][poster]

66. Detecting Changes in 3D Structure of a Scene from Multi-view Images Captured by a Vehicle-mounted Camera, Ken Sakurada, Takayuki Okatani, and Koichiro Deguchi, Proceedings of Computer Vision and Pattern Recognition (CVPR) (2013) [PDF][supplementary_material]

67. Understanding Convolutional Neural Networks in Terms of Category-level Attributes, Makoto Ozeki and Takayuki Okatani, Proceedings of Asian Conference on Computer Vision (ACCV) (2014) [PDF]

68. Massive City-scale Surface Condition Analysis using Ground and Aerial Imagery, Ken Sakurada, Takayuki Okatani and Kris M. Kitani, Proceedings of Asian Conference on Computer Vision (ACCV) (2014) [PDF]

69. Separation of Reflection Components by Sparse Non-negative Matrix Factorization, Akashi Yasuhiro and Takayuki Okatani, Proceedings of Asian Conference on Computer Vision (ACCV) (2014) [PDF]

70. Detecting Building-level Changes of a City Using Street Images and a 2D City Map, Daiki Tetsuka, Takayuki Okatani, Proceedings of IEEE Winter Conference on Applications of Computer Vision (WACV) (2015) [PDF] [Supplementary Material]

71. Change Detection from a Street Image Pair using CNN Features and Superpixel Segmentation, Ken Sakurada and Takayuki Okatani, Proceedings of British Machine Vision Conference (BMVC) (2015) [PDF]