Robotics and Computer Vision Lab

Publications

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
385. Noise aware depth denoising for a time-of-flight camera
Jiyoung Jung, Joon-Young Lee, In So Kweon
20th Korea-Japan Joint Workshop on Frontiers of Computer Vision 2014 / 02
384. P-RIF: Perceptually Robust Invariant Feature
Sungho Kim, In So Kweon
IPIU 2013 / 02
383. A Perceptual Visual Feature Extraction Method Achieved by Imitating V1 and V4 of the Human Visual System
Sungho Kim, 권순, In So Kweon
Cognitive Computation 2012 / 11
382. Image-Optimized Rolling Cache: Reducing the Miss Penalty for Memory-Intensive Vision Algorithms
Younggeun Kim, In So Kweon
IEEE Transactions on Circuits and Systems for Video Technology 2013 / 12
381. Robust Computer Vision Techniques for High-quality 3D Modeling
Joon-Young Lee, Jiyoung Jung, Yunsu Bok, Jaesik Park, Dong-Geol Choi, Yudeog Han, In So Kweon
IAPR Asian Conference on Pattern Recognition 2013 / 11
380. Orientation based multi-scale corner detection for mobile robot application
Sungho Kim, In So Kweon, Wangheon Lee
International Conference on Control, Automation and Systems 2012 / 10
379. Omnidirectional Object Recognition Based Mobile Robot Localization
Sungho Kim, In So Kweon
Lecture Notes in Electrical Engineering 2013 / 05
378. Model-Based Scene Interpretation by Multilayered Context Information. In N.M.Seel(Ed.), Encyclopedia of the Science of Learning
Sungho Kim, In So Kweon
Springer 2012 / 01
377. Feature point detection by combining advantages of intensity-based approach and edge-based approach
Sungho Kim, Chaehoon Park, Yukyung Choi, 권순, In So Kweon
World Academy of Science Engineering and Technology 2012 / 08
376. 영상 곡률 공간 정보를 이용한 코너 검출 기법
Sungho Kim, Chaehoon Park, Yukyung Choi, In So Kweon
2011 제 26회 ICROS 학술대회 2011 / 05
375. TVF와 GVF를 이용한 특징점 추출
Sungho Kim, Chaehoon Park, Yukyung Choi, In So Kweon
신호처리종합학술대회 2011 / 09
374. 컬러영상분할을 이용한 향상된 안개제거
Sang-Woo Noh, Byungtae Ahn, In So Kweon
신호처리합동학술대회 2013 / 10
373. Appearance-based Gaze Estimation using Kinect
Jinsoo Choi, Byungtae Ahn, Jaesik Park, In So Kweon
The 10th International Conference on Ubiquitous Robots and Ambient Intelligence (URAI 2013) 2013 / 10
372. Haze Removal on Superpixel Domain
Sang-Woo Noh, Byungtae Ahn, In So Kweon
The 10th International Conference on Ubiquitous Robots and Ambient Intelligence (URAI) 2013 / 10
371. Partial Sum Minimization of Singular Values in RPCA for Low-Level Vision
Tae-Hyun Oh, Hyeongwoo Kim, Yu-Wing Tai, Jean-Charles Bazin, In So Kweon
IEEE International Conference on Computer Vision (ICCV) 2013 / 12
370. High Quality Shape from a Single RGB-D Image under Uncalibrated Natural Illumination
Yudeog Han, Joon-Young Lee, In So Kweon
IEEE International Conference on Computer Vision (ICCV) 2013 / 12
369. Multiview Photometric Stereo using Planar Mesh Parameterization
Jaesik Park, Sudipta N. Sinha, Yasuyuki Matsushita, Yu-Wing Tai, In So Kweon
IEEE International Conference on Computer Vision (ICCV) 2013 / 12
368. Fluttering Pattern Generation using Modified Legendre Sequence for Coded Exposure Imaging
Hae-Gon Jeon, Joon-Young Lee, Yudeog Han, Seon Joo Kim, In So Kweon
IEEE International Conference on Computer Vision (ICCV) 2013 / 12
367. Robust Real-time Tracking of Facial Features with Application to Emotion Recognition
Byungtae Ahn, Eung-Hee Kim, Jin-Hun Sohn, In So Kweon
Journal of Korea Robotics Society 2013 / 12
366. Evaluation of Vocabulary Trees for Localization in Robot Applications
Soonmin Hwang, Chaehoon Park, Yukyung Choi, Donggeun Yoo, In So Kweon
International Conference on Control, Automation and Systems 2013 / 10
Board Pagination Prev 1 ... 11 12 13 14 15 16 17 18 19 20 ... 35 Next
/ 35