Robotics and Computer Vision Lab

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저 자 Youngbae Hwang, Jun-sik Kim, In So Kweon
학 회 IEEE International Conference on Computer Vision and Pattern Recognition (CVPR)
논문일시(Year) 2007
논문일시(Month) 06
In this paper, we introduce the Skellam distribution as
a sensor noise model for CCD or CMOS cameras. This is
derived from the Poisson distribution of photons that deter-
mine the sensor response. We show that the Skellam dis-
tribution can be used to measure the intensity difference of
pixels in the spatial domain, as well as in the temporal do-
main. In addition, we show that Skellam parameters are
linearly related to the intensity of the pixels. This property
means that the brighter pixels tolerate greater variation of
intensity than the darker pixels. This enables us to decide
automatically whether two pixels have different colors. We
apply this modeling to detect the edges in color images.
The resulting algorithm requires only a confidence interval
for a hypothesis test, because it uses the distribution of im-
age noise directly. More importantly, we demonstrate that
without conventional Gaussian smoothing the noise model-
based approach can automatically extract the fine details of
image structures, such as edges and corners, independent
of camera setting.

List of Articles
119. Stereo Matching with the Distinctive Similarity Measure
Kukjin Yoon, In So Kweon
IEEE International Conference on Computer Vision (ICCV) 2007 / 10
118. Separating Reflection Components using a Single Color Image
Kukjin Yoon, In So Kweon
18th Workshop on Image Processing and Image Understanding(IPIU) 2006 / 02
117. 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
116. Simultaneous Place and Multiple Object Recognition using Particle-based Belief Propagation in Hierarchical Graphical Model
Sungho Kim, In So Kweon
19th Workshop on Image Processing and Image Understanding (IPIU) 2006 / 02
115. An edge-based algorithm for discontinuity adaptive color Image smoothing
Dongjoong Kang, In So Kweon
Pattern Recognition 2001 / 02
114. 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
113. 3-D structure recovery and calibration under varying intrinsic parameters using known angles
Jongeun Ha, In So Kweon
Pattern Recognition 2001 / 02
» 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
111. Robust and direct estimation of 3-D motion and scene depth from stereo image sequences
Seongkee Park, In So Kweon
Pattern Recognition 2001 / 07
110. 상향식/하향식 정보를 결합한 효과적인 3D 자동물체인식 시스템
Wangheon Lee, Sungho Kim, 김인철, In So Kweon
한국군사과학기술학회 2004년 종합학술대회 2004 / 08
109. 3D object recognition using a new invariant relationship by single view
Kyoungsig Roh, In So Kweon
Pattern Recognition 2000 / 01
108. Modeling and target classification using multiple reflections of sonar
Wangheon Lee, Kukjin Yoon, In So Kweon
정보및 제어 학술대회 (CICS) 2003 / 11
107. 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
106. Hybrid hierarchiecal motion estimation under illumination variations
Youngsu Moon, In So Kweon
Electonics Letters 2000 / 03
105. 인공표식과 자연표식을 결합한 강인한 자기위치추정
In So Kweon, Gijeong Jang, Sungho Kim, Wangheon Lee
한국정밀공학회(KSPE) 2003 춘계학술대회 2003 / 06
104. 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
103. Probabilistic optimization for volumetric 3-D reconstruction
Howon Kim, In So Kweon
Human Computer Interaction(HCI) 2003 / 01
102. Robust direct motion estimation considering discontinuity
Jongeun Ha, In So Kweon
Pattern Recognition Letters 2000 / 11
101. 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
100. 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
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