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
99. Active vision algorithms using projective invariants
Dongsu Kim, Kyoungsig Roh, In So Kweon
Annual Conference of Robotics Society in Japan 1994 / 11
98. A new 2-D object recognition algorithm using geometric invariance
Kyoungsig Roh, In So Kweon
International Symposium on Advances in Computer Integrated Manufacturing Systems 1994 / 11
97. Model based color halftoning techniques on perceptually uniform color spaces
C. Kim, S. Kim, Y. Seo, In So Kweon
IST&T/SPIE International Conference on Digital Video Compression and Processing on Personal Computers: Algorithms and Technologies 1994 / 01
96. A behavior-based intelligent robot in dynamic indoor environments
In So Kweon, M. Watanabe, K. Onoguchi, Y. Kuno
IEEE International Conference on Robotics and Automation (ICRA) 1992 / 05
95. behavior-based mobile robot using active sensor fusion
In So Kweon, M. Watanabe, K. Onoguchi, Y. Kuno
IEEE International Conference on Intelligent Robots and Systems (IROS) 1992 / 07
94. A three-layered system architecture for behavior-based mobile robots
M. Watanabe, K. Onoguchi, In So Kweon, Y. Kuno
IEEE International Conference on Robotics and Automation (ICRA) 1992 / 05
93. Vision-based behaviors for indoor mobile robots
In So Kweon, K. Onoguchi, M. Watanabe, Y. Kuno
Information Processing Society of Japan Workshop on Computer Vision 1992 / 01
92. Vehicle control using target tracking
K. Onoguchi, M. Watanabe, In So Kweon, Y. Kuno
Information Processing Society of Japan Workshop on Computer Vision 1991 / 07
91. Extracting topographic terrain features for outdoor mobile robots
In So Kweon, T. Kanade
IEEE International Conference on Robotics and Automation (ICRA) 1991 / 04
90. Behavior-based mobile robot using multiple sensors
In So Kweon, M. Watanabe, K. Onoguchi, Y. Kuno
The 1st Korea-Japan Joint Conference on Computer Vision 1991 / 10
89. High resolution terrain map from multiple sensor data
In So Kweon, T. Kanade
IEEE International Workshop on Intelligent Robots and Systems (IROS) 1990 / 07
88. A mobile robot for lunar surface operations
Bares, In So Kweon, D. Wettegreen, W. Whittaker
NASA Conference on Space Telerobotics 1990 / 03
87. Methods for identifying footfall positions for a legged robot
Caillas, In So Kweon, E. Krotkov, M. Hebert
IEEE International Workshop on Intelligent Robots and Systems (IROS) 1989 / 09
86. Terrain mapping for a roving planetary explorer
M. Hebert, E. Krotkov, In So Kweon, T. Kanade
IEEE International Conference on Robotics and Automation (ICRA) 1989 / 05
85. First results in terrain mapping for a roving planetary explorer
E. Krotkov, M. Hebert, In So Kweon, T.Kanade
NASA Conference on Space Telerobotics 1989 / 01
84. Sensor fusion of range and reflectance data for outdoor scene analysis
In So Kweon, M. Hebert, T. Kanade
NASA Workshop on Space Operations, Automation, and Robotics 1988 / 07
83. Perception for rugged terrain
In So Kweon, M. Hebert, T. Kanade
SPIE International Symposium on Intelligent Robots and Computer Vision 1988 / 11
82. CMU sidewalk navigation system: A blackboard-based outdoor navigation system using sensor fusion with colored-range images
Y. Goto, K. Matsuzaki, In So Kweon, T. Obatake
Fall Joint Computer Conference (FJCC) 1986 / 11
81. Automatic Method for Closed Eye Correction
Jean-Charles Bazin, D.Q. Pham, In So Kweon, Kukjin Yoon
ICIP'09 2009 / 11
80. Particle Filter Approach Adapted to Catadioptric Images for Target Tracking Application
Jean-Charles Bazin, Kukjin Yoon, In So Kweon, C. Demonceaux, P. Vasseur
BMVC'09 2009 / 09
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