Robotics and Computer Vision Lab

Publications

Extra Form
저 자 Pierre Gurdijos, Jun-sik Kim, In So Kweon
학 회 Proceeding of the IEEE Conference on Computer Vision and Pattern Recognition (CVPR)
논문일시(Year) 2006
논문일시(Month) 07
Plane-based calibration is now a very popular procedure because of its flexibility. One key step consists in detecting a set of coplanar features, from which the Euclidean structure of the corresponding 3D plane has to be computed. We suggest to use confocal conics as calibration targets, as they offer undeniable advantages over other ones (e.g., points or lines) in terms of detection and estimation, especially in the presence of partial occlusion. We introduce important projective and Euclidean properties of the linear family of conics (i.e., the confocal conic range), spanned by two confocal conics. In particular, we rely on the fact that the circular point-envelope – a rank-2 conic that encodes the 2D Euclidean structure – is a degenerate member of any confocal conic range. This allows us to give closed-form solutions in three cases: one conic with known foci, two confocal conics with known product of ratios of semi axes, and two unknown confocal conics. The performances of the proposed algorithms (consisting of a few lines of Matlab-like code) show up high accuracies for both intrinsic and extrinsic camera parameters. In addition to experiments with synthetic data, a video sequence is processed, showing off the interest of using confocal conics as calibration targets, for augmented reality purposes.

List of Articles
80. Perceived Illumination Measured
Changyeong Kim, S. Petrov, Seo Yang-Seok, In So Kweon
Color Research and Application 1998 / 01
79. Fast Central Catadioptric Line Extraction
Jean-Charles Bazin, Cedric Demonceaux, Pascal Vasseur
Proc. of 3rd Iberian Conference on Pattern Recognition and Image Analysis (IbPRIA’07) 2007 / 06
78. 지역 Zernike 모멘트를 이용한 모델 기반 확률적 물체 인식
Sungho Kim, 김인철, In So Kweon
14th Workshop on Image Processing and Image Understanding (IPIU) 2002 / 01
77. Background Robust Object Labeling by Voting of Weight-Aggregated Local Features
Sungho Kim, Kukjin Yoon, In So Kweon
International Conference on Pattern Recognition (ICPR) 2006 / 08
76. Object Recognition using Generalized Robust Invariant Feature and Gestalt Law of Proximity and Similarity
Sungho Kim, Kukjin Yoon, In So Kweon
5th IEEE Workshop on Perceptual Organization in Computer Vision (CVPRW) 2006 / 06
75. 조명불변 운동추정을 위한 적응적 국부 영상 정규화
Youngsu Moon, Changyeong Kim, In So Kweon
13th Workshop on Image Processing and Image Understanding (IPIU) 2001 / 01
74. Efficient Feature Tracking for Visual SLAM by Pairwise Constraints
Jungho Kim, Hyeongwoo Kim, In So Kweon
The 4th International Conference on Ubiquitous Robots and Ambient Intelligence(URAI) 2007 / 11
73. COP: A new method for extracting edges and corners
Suncheol Bae, In So Kweon, ChoongDon Yoo
Lecture Notes in Computer Science (LNCS) 2006 / 01
72. Photo hull 완화를 위한 확률기반 복셀 칼라링
Howon Kim, 정윤수, In So Kweon
13th Workshop on Image Processing and Image Understanding (IPIU) 2001 / 01
71. Cosegmentation as a Generalized Correspondence Problem -A Motion Model Driven Approach
Ouk Choi, In So Kweon
The 4th International Conference on Ubiquitous Robots and Ambient Intelligence(URAI) 2007 / 11
» Euclidean Structure from Confocal Conics: Theory and Application to Camera Calibration
Pierre Gurdijos, Jun-sik Kim, In So Kweon
Proceeding of the IEEE Conference on Computer Vision and Pattern Recognition (CVPR) 2006 / 07
69. Terrain Classification Using Texture Recognition for Autonomous Robot
Hanbyul Joo, In So Kweon
The 4th International Conference on Ubiquitous Robots and Ambient Intelligence(URAI) 2007 / 11
68. 동심원의 투영 불변 특성을 이용한 카메라 보정
Jun-sik Kim, In So Kweon
13th Workshop on Image Processing and Image Understanding (IPIU) 2001 / 01
67. Simultaneous Plane Extraction and 2D Homography Estimation using Local Feature Transformations
Ouk Choi, Hyeongwoo Kim, In So Kweon
Asian Conference on Computer Vision 2007 / 11
66. 2-D object recognition using invariant contour descriptor and projective refinement
Kyoungsig Roh, In So Kweon
Pattern Recognition 1998 / 05
65. A hybrid pyramid-based motion estimation algorithm under illumination variations
Youngsu Moon, In So Kweon
12th Workshop on Image Processing and Image Understanding (IPIU) 2000 / 01
64. Real-time face tracking using adaptive color model
Gijeong Jang, In So Kweon
12th Workshop on Image Processing and Image Understanding (IPIU) 2000 / 01
63. Robust Feature Matching for Loop Closing and Localization
Jungho Kim, In So Kweon
IEEE/RSJ International Conference on Robots and Systems 2007 / 10
62. Feature Matching for Loop Closing
Jungho Kim, In So Kweon
The 13th International Conference on Advanced Robotics 2007 / 08
61. A new technique for shot detection and key frames selection in histogram space
Seunghoon Han, Kukjin Yoon, In So Kweon
12th Workshop on Image Processing and Image Understanding (IPIU) 2000 / 01
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