Robotics and Computer Vision Lab

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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
44. 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
43. 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
42. 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
41. 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
40. COP: A new method for extracting edges and corners
Suncheol Bae, In So Kweon, ChoongDon Yoo
Lecture Notes in Computer Science (LNCS) 2006 / 01
39. 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
37. 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
36. 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
35. Robust Feature Matching for Loop Closing and Localization
Jungho Kim, In So Kweon
IEEE/RSJ International Conference on Robots and Systems 2007 / 10
34. Feature Matching for Loop Closing
Jungho Kim, In So Kweon
The 13th International Conference on Advanced Robotics 2007 / 08
33. Shot detection combining Bayesian and structural information
Seunghoon Han, In So Kweon
SPIE : Storage and Retrieval for Media Database 2001 2001 / 01
32. Moving Object Segmentation Algorithm
Kukjin Yoon, In So Kweon
1st International Workshop on Human-friendly Welfare Robotic Systems (HWRS) 2000 / 01
31. Self-calibration using the linear projective reconstruction
Jongeun Ha, Jinyoung Yang, In So Kweon
IEEE International Conference on Robotics and Automation (ICRA) 2000 / 11
30. Bayesian Shot Detection using Structural Weighting
Seunghoon Han, In So Kweon
International Workshop on Machine Vision Applications (MVA) 2000 / 11
29. A novel image-based control-law for the visual servoing system
Jaeseung Cho, Howon Kim, In So Kweon
IEEE/RSJ International Conference on Intelligent Robots and Systems (IROS) 2000 / 10
28. Robust Real-time Face Tracking Using Adaptive Color Model
Gijeong Jang, In So Kweon
International Symposium on Mechatronics and Intelligent Mechanical System for 21 Century (ISIM) 2000 / 10
27. Self-calibration algorithm under varying cameras using the linear
Jongeun Ha, In So Kweon
Asian Conference on Computer Vision (ACCV) 2000 / 01
26. Stereo Matching with Symmetric Cost Functions
Kukjin Yoon, In So Kweon
Proceeding of the IEEE Conference on Computer Vision and Pattern Recognition (CVPR) 2006 / 06
25. Correspondence Search in the Presence of Specular Highlights Using Specular-Free Two-Band Images
Kukjin Yoon, In So Kweon
Asian Conference on Computer Vision (ACCV) 2006 / 01
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