Robotics and Computer Vision Lab

Publications

조회 수 6490 댓글 0
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
70. Support Aggregation via Non-linear Diffusion with Disparity-Dependent Support-Weights for Stereo Matching
Kukjin Yoon, Yekeun Jeong, In So Kweon
Asian Conference on Computer Vision (ACCV), oral presentation 2009 / 09
69. Efficient Color Feature Extraction and Matching for Motion Estimation and Mapping
Hyoseok Hwang, In So Kweon
IEEE/RSJ 2008 International Conference on Intelligent Robots and Systems (IROS) 2008 / 09
68. Spherical Region-Based Matching of Vanishing Points in Catadioptric Images
Jean-Charles Bazin, In So Kweon, Cedric Demonceaux, Pascal Vasseur
OMNIVIS (ECCV) 2008 / 10
67. A Robust Top-Down Approach for Rotation Estimation and Vanishing Points Extraction by Catadioptric Vision in Urban Environment
Jean-Charles Bazin, In So Kweon, Cedric Demonceaux, Pascal Vasseur
IEEE/RSJ International Conference on Intelligent Robots and Systems (IROS) 2008 / 09
66. Robust Vision-based Autonomous Navigation against Environment Changes
Jungho Kim, Yunsu Bok, In So Kweon
IEEE/RSJ International Conference on Intelligent Robots and Systems (IROS) 2008 / 09
65. Efficient Feature Tracking for Scene Recognition using Angular and Scale Constraints
Jungho Kim, Ouk Choi, In So Kweon
IEEE/RSJ International Conference on Intelligent Robots and Systems (IROS) 2008 / 09
64. Pose Estimation of Unmanned Aerial Vehicle by Catadioptric Vision
Jean-Charles Bazin, In So Kweon
the 13th IEEE Korea-Japan Joint Workshop on Frontiers of Computer Vision (FCV ‘07) 2007 / 02
63. UAV Attitude Estimation by Vanishing Points in Catadioptric Images
Jean-Charles Bazin, In So Kweon, Cedric Demonceaux, Pascal Vasseur
IEEE International Conference on Robotics and Automation (ICRA’08) 2008 / 05
62. Rectangle Extraction in Catadioptric Images
Jean-Charles Bazin, In So Kweon, Cedric Demonceaux, Pascal Vasseur
(OMNIVIS ‘07) in conjunction with ICCV’07 2007 / 10
61. UAV Attitude Estimation by Combining Horizon-based and Homography-based Approaches for Catadioptric Images
Jean-Charles Bazin, In So Kweon, Cedric Demonceaux, Pascal Vasseur
6th IFAC Symposium on Intelligent Autonomous Vehicles 2007 / 09
60. Statistical Background Subtraction Based on the Exact Per-pixel Distributions
Youngbae Hwang, Hanbyul Joo, Jun-sik Kim, In So Kweon
IAPR workshop on Machine Vision Applications (MVA) 2007 / 05
59. Stereo Matching with the Distinctive Similarity Measure
Kukjin Yoon, In So Kweon
IEEE International Conference on Computer Vision (ICCV) 2007 / 10
58. Motion Estimation using Centers of Non-Overlapping Cameras
Hyeongwoo Kim, Jun-sik Kim, In So Kweon
Proceedings of the 13th Japan-Korea Joint Workshop on Frontiers of Computer Vision (FCV) 2007 / 01
57. Visual Categorization Robust to Large Intra-Class Variations using Entropy-guided Codebook
Sungho Kim, In So Kweon
Proceedings of the IEEE International Conference on Robotics and Automation (ICRA) 2007 / 04
56. Sensor noise modeling using the Skellam distribution: Application to the color edge detection
Youngbae Hwang, Jun-sik Kim, In So Kweon
IEEE International Conference on Computer Vision and Pattern Recognition (CVPR) 2007 / 06
55. Accurate Motion Estimation and High-Precision 3D Reconstruction by Sensor Fusion
Yunsu Bok, Youngbae Hwang, In So Kweon
Proceedings of the IEEE International Conference on Robotics and Automation (ICRA) 2007 / 04
54. CALOS : Camera And Laser for Odometry Sensing
Yunsu Bok, Youngbae Hwang, In So Kweon
Proceedings of the 13th Japan-Korea Joint Workshop on Frontiers of Computer Vision (FCV) 2007 / 01
53. Object Categorization Robust to Surface Markings using Entropy-guided Codebook
Sungho Kim, In So Kweon
IEEE Workshop on Applications of Computer Vision (WACV) 2007 / 02
52. Determination of Color Space for Accurate Change Detection
Youngbae Hwang, Jun-sik Kim, In So Kweon
IEEE International Conference on Image Processing (ICIP) 2006 / 10
51. Semi-metric Space: A New Approach to Treat Orthogonality and Parallelism
Jun-sik Kim, In So Kweon
Asian Conference on Computer Vision (ACCV) 2006 / 01
Board Pagination Prev 1 ... 9 10 11 12 13 14 15 16 17 18 Next
/ 18