Robotics and Computer Vision Lab

Publications

Extra Form
저 자 Sungho Kim, In So Kweon
학 회 Proceedings of the IEEE International Conference on Robotics and Automation (ICRA)
논문일시(Year) 2007
논문일시(Month) 04
Categorizing visual elements is fundamentally important
for autonomous mobile robots to get intelligence such
as new object acquisition and topological place classification.
The main problem of visual categorization is how to reduce
the large intra-class variations, especially surface markings
of man-made objects. In this paper, we present a robust
method by introducing intermediate blurring and entropyguided
codebook selection in a bag-of-words framework. Intermediate
blurring can filter out the high frequency of surface
markings and provide dominant shape information. Entropy
of a hypothesized codebook can provide the necessary measure
for the semantic parts among training exemplars. From the
first step, a generative optimal codebook for each category is
learned using the MDL (minimum description length) principle
guided by entropy information. From the second step, a final set
of codebook is learned using the discriminative method guided
by the inter-category entropy of the codebook. We select the
necessary parameters through various evaluations and validate
the effect of the surface marking reduction method using a
Caltech-101 DB, which has large intra-class variations. Finally,
we briefly introduce the impact of the method to the object
categorization and segmentation problem.

List of Articles
74. Graph Generation from Over-segmentation for Graph Based Approaches
Hanbyul Joo, Yekeun Jeong, In So Kweon
15th Korea-Japan Joint Workshop on Frontiers of Computer Vision(FCV) 2009 / 02
73. Bottom-Up Segmentation Based Robust Shape Matching in the Presence of Clutter and Occlusion
Hanbyul Joo, Yekeun Jeong, In So Kweon
International Workshop on Advanced Image Technology(IWAIT) 2009 / 01
72. Relative Scale Estimation between Two Camera Motions
Yekeun Jeong, In So Kweon
The 19th International Conference on Pattern Recognition (ICPR) 2008 / 12
71. Capturing Village-level Heritages with a Hand-held Camera-Laser Fusion Sensor
Yunsu Bok, Dong-Geol Choi, Yekeun Jeong, In So Kweon
IEEE Workshop on eHeritage and Digital Art Preservation, In conjunction with ICCV 2009 2009 / 10
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
» 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
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