Robotics and Computer Vision Lab

Publications

조회 수 1214 댓글 0
Extra Form
저 자 Younggeun Kim, Venkata RavisanKar Jayanthi, In So Kweon
학 회 IEEE Transactions on Circuits and Systems for Video Technology (CSVT)
BidTex Ref Issue Date: Oct. 2011 Volume: 21 Issue:10 On page(s): 1401 - 1414 ISSN: 1051-8215
논문일시(Year) 2011
논문일시(Month) 10
Majority of CMOS image sensors in consumer market utilize a rolling shutter to increase sensitivity. However, it causes severe distortions, such as jitter, wobble, or skew. Since most of these kinds of sensors are used in hand-held devices, the approach of undistorting and generating stabilized images is restricted to resource limited systems. It has also been one of the major challenges to have a mathematical representation of CMOS rolling effect depicting the practical scenario, while keeping accuracy and stability. We propose that a CMOS sensor can be modeled by a section-wise charge-coupled devices model which has multiple homographies and exploit the  observation that rolling shutter mechanism gives close relationships among them. We present a CMOS seven-parameter model, and show video stabilization algorithm by the iterative parameter estimation technique. We address four issues while accelerating our stabilization algorithm within resource limited environment: accuracy, stability, computation time, and resource utilization. We developed cache based optimization techniques to meet the requirement of the memory bandwidth and computational time for the iterative parameter estimation and final output image interpolation, and also proposed the incremental form of the seven-parameter model to greatly reduce resource consumption while maintaining the same results as the previous. The validity and effectiveness of our approach is demonstrated by experiments for different types of camera motions. The cache based optimization technique can be used to accelerate other types of iterative vision algorithms that require repetitive memory access: feature tracking, motion estimation, motion compensation, various types of image distortion correction, and also image warping and scaling.

List of Articles
» System-on-Chip Solution of Video Stabilization for CMOS Image Sensors in Hand-Held Devices
Younggeun Kim, Venkata RavisanKar Jayanthi, In So Kweon
IEEE Transactions on Circuits and Systems for Video Technology (CSVT) 2011 / 10
59. Edge directional 2D LMS filter for infrared small target detection
Tae-Wuk Bae, Fei Zhang, In So Kweon
Infrared Physics & Technology 2011 / 11
58. Pushing the Envelope of Modern Methods for Bundle Adjustment
Yekeun Jeong, David Nister, Drew Steedly, Richard Szeliski, In So Kweon
IEEE Transactions on Pattern Analysis and Machine Intelligence (TPAMI) 2012 / 08
57. A Tensor-Based Algorithm for High-Order Graph Matching
O. Duchenne, F. Bach, In So Kweon, J. Ponce
IEEE Transactions on Pattern Analysis and Machine Intelligence 2011 / 12
56. Localization using GPS and VISION aided INS with an Image Database and a Network of a Ground-based ...
Ji-Hoon Choi, Yong-Woon Park, Jae-Bok Song, In So Kweon
INTERNATIONAL JOURNAL OF CONTROL AUTOMATION AND SYSTEMS 2011 / 08
55. Difference-based image noise modeling using Skellam distribution
Youngbae Hwang, Jun-sik Kim, In So Kweon
IEEE Transactions on Pattern Analysis and Machine Intelligence (TPAMI) 2012 / 07
54. Image Decomposition with Multilabel Context: Algorithms and Applications
Teng Li, Shuicheng Yan, Tao Mei, Xian-Sheng Hua, In So Kweon
IEEE Transaction on Image Processing 2011 / 08
53. Rotation Estimation and Vanishing Point Extraction by Omnidirectional Vision in Urban Environment
Jean-Charles Bazin, Cedric Demoncaux, Pascal Vasseur, In So Kweon
International Journal of Robotics Research 2011 / 08
52. Metric reconstruction of planes utilizing off-the-plane features
Jun-sik Kim, In So Kweon
Computer Vision and Image Understanding (CVIU) 2011 / 01
51. Capturing Village-level Heritages with a Hand-held Camera-Laser Fusion Sensor
Yunsu Bok, Yekeun Jeong, Dong-Geol Choi, In So Kweon
International Journal of Computer Vision (IJCV), vol. 94, no. 1, pp. 36-53 2011 / 08
50. Euclidean structure from confocal conics: Theory and application to camera calibration
Jun-sik Kim, Pierre Gurdjos, In So Kweon
Computer Vision and Image Understanding (CVIU) 2010 / 07
49. Contextual Bag-of-Words for Visual Categorization
Teng Li, Tao Mei, In So Kweon, Xian-Sheng Hua
IEEE Transactions on Circuits and Systems for Video Technology (CSVT) 2010 / 01
48. Robust feature point matching by preserving local geometric consistency
Ouk Choi, In So Kweon
Computer Vision and Image Understanding 2009 / 06
47. Motion Estimation by Decoupling Rotation and Translation in Catadioptric Vision
Jean-Charles Bazin, C. Demoncreaux, P. Vasseur, In So Kweon
Computer Vision and Image Understanding 2009 / 12
46. Multi-Video Synopsis: Representing Multiple Videos with a Single Video Sequence
Teng Li, Tao Mei, In So Kweon, Xian-Sheng Hua
Signal Processing 2009 / 12
45. Simultaneous Place and Object Recognition using Collaborative Context Information
Sungho Kim, In So Kweon
Image and Vision Computing 2009 / 05
44. Camera calibration based on arbitrary parallelograms
Jun-sik Kim, In So Kweon
Computer Vision and Image Understanding 2009 / 01
43. Change Detection Using a Statistical Model in an Optimally Selected Color Space
Youngbae Hwang, Jun-sik Kim, In So Kweon
Computer Vision and Image Understanding 2008 / 12
42. Distinctive Similarity Measure for Stereo Matching Under Point Ambiguity
Kukjin Yoon, In So Kweon
Computer Vision and Image Understanding 2008 / 11
41. Object Recognition Using a Generalized Robust Invariant Feature and Gestalt's Law of Proximity and Similarity
Sungho Kim, Kukjin Yoon, In So Kweon
Pattern Recognition 2008 / 02
Board Pagination Prev 1 2 3 4 5 6 Next
/ 6