NDLI: Decomposing and regularizing sparse/non-sparse components for motion field estimation

Content Provider	IEEE Xplore Digital Library
Author	Zhuoyuan Chen Jiang Wang Ying Wu
Copyright Year	2012
Description	Author affiliation: EECS Department, Northwestern University, 2145 Sheridan Road, Tech L440, Evanston, IL (Zhuoyuan Chen; Jiang Wang; Ying Wu)
Abstract	Regularizing motion field is critical to achieve accurate estimation of the motion field. As the motion field may include discontinuity (e.g., at the motion boundaries), traditional smoothness regularization may not work well. Among many approaches to handling motion discontinuity, recent attempts pursued a sparse representation of the motion field for regularization, and achieved quite encouraging results. However, statistics show that these methods tend to over-sparsify the motion field, and thus confronted by the non-sparse noise in practice. In this paper, we propose to decompose the motion field into sparse and non-sparse components for the motion boundaries and small universal noises, respectively. This separation approach regularizes these two sources differently. We propose a novel and efficient optimization algorithm to solve this problem. In addition, our study reveals the in-depth connection between this noise separation approach and the influence function approach in robust statistics. We validate and evaluate our new approach on the Middlebury benchmark, and have achieved outstanding testing performance.
Starting Page	1776
Ending Page	1783
File Size	1116576
Page Count	8
File Format	PDF
ISBN	9781467312264
ISSN	10636919
e-ISBN	9781467312288
e-ISBN	9781467312271
DOI	10.1109/CVPR.2012.6247874
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2012-06-16
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Estimation Robustness Adaptive optics Image color analysis Optimization Fitting Optical imaging
Content Type	Text
Resource Type	Article
Subject	Computer Vision and Pattern Recognition Software

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1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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