? Geometry of Motion for Video Shakiness Detection
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Journal of Computer Science and Technology 2018, Vol. 33 Issue (3) :475-486    DOI: 10.1007/s11390-018-1832-5
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Geometry of Motion for Video Shakiness Detection
Xiao-Qun Wu, Member, CCF, Hai-Sheng Li, Member, CCF, Member, IEEE, Jian Cao, Member, CCF, Qiang Cai, Senior Member, CCF, Member, IEEE
School of Computer and Information Engineering, Beijing Technology and Business University, Beijing 100048, China;Beijing Key Laboratory of Big Data Technology for Food Safety, Beijing Technology and Business University Beijing 100048, China

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Abstract This paper presents a novel algorithm for automatically detecting global shakiness in casual videos. Per-frame amplitude is computed by the geometry of motion, based on the kinematic model defined by inter-frame geometric transformations. Inspired by motion perception, we investigate the just-noticeable amplitude of shaky motion perceived by human visual system. Then, we use the thresholding contrast strategy on the statistics of per-frame amplitudes to determine the occurrence of perceived shakiness. For testing the detection accuracy, a dataset of video clips is constructed with manual shakiness label as the ground truth. The experiments demonstrate that our algorithm can obtain good detection accuracy that is in concordance with subjective judgement on the videos in the dataset.
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KeywordsVideo shakiness   kinematic model   motion perception     
Received 2018-01-04;
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This work was partially supported by the National Natural Science Foundation of China under Grant No. 61602015, the Open Funding Project of State Key Laboratory of Virtual Reality Technology and Systems at Beihang University under Grant No. BUAAVR-16KF-06, Beijing Natural Science Foundation under Grant No. 4162019, and the Research Foundation for Young Scholars of Beijing Technology and Business University.

Corresponding Authors: Xiao-Wu Chen     Email: chen@buaa.edu.cn
About author: Xiao-Qun Wu is now a lecturer in the School of Computer and Information Engineering, Beijing Technology and Business University, Beijing. She received her B.S. and M.S. degrees in mathematics from Zhejiang University, Hangzhou, in 2007 and 2009, respectively, and her Ph.D. degree in computer science from Nanyang Technological University, Singapore, in 2014. Her research focuses on computer graphics, multimedia processing and applications.
Cite this article:   
Xiao-Qun Wu, Hai-Sheng Li, Jian Cao, Qiang Cai.Geometry of Motion for Video Shakiness Detection[J]  Journal of Computer Science and Technology, 2018,V33(3): 475-486
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http://jcst.ict.ac.cn:8080/jcst/EN/10.1007/s11390-018-1832-5
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