Extracting representative motion flows for effective video retrieval

doi:10.1007/s11042-011-0763-8

CORC > 北京大学 > 信息科学技术学院

	Extracting representative motion flows for effective video retrieval
	Zhao, Zhe ; Cui, Bin ; Cong, Gao ; Huang, Zi ; Shen, Heng Tao
刊名	multimedia tools and applications
	2012
关键词	Video retrieval Content feature Motion flow Trajectory matching MOVING-OBJECTS MODELS SEQUENCES IMAGE
DOI	10.1007/s11042-011-0763-8
英文摘要	In this paper, we propose a novel motion-based video retrieval approach to find desired videos from video databases through trajectory matching. The main component of our approach is to extract representative motion features from the video, which could be broken down to the following three steps. First, we extract the motion vectors from each frame of videos and utilize Harris corner points to compensate the effect of the camera motion. Second, we find interesting motion flows from frames using sliding window mechanism and a clustering algorithm. Third, we merge the generated motion flows and select representative ones to capture the motion features of videos. Furthermore, we design a symbolic based trajectory matching method for effective video retrieval. The experimental results show that our algorithm is capable to effectively extract motion flows with high accuracy and outperforms existing approaches for video retrieval.; http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000303507900011&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=8e1609b174ce4e31116a60747a720701 ; Computer Science, Information Systems; Computer Science, Software Engineering; Computer Science, Theory & Methods; Engineering, Electrical & Electronic; SCI(E); EI; 0; ARTICLE; 3; 687-711; 58
语种	英语
内容类型	期刊论文
源URL	[http://ir.pku.edu.cn/handle/20.500.11897/152489]
专题	信息科学技术学院
推荐引用方式 GB/T 7714	Zhao, Zhe,Cui, Bin,Cong, Gao,et al. Extracting representative motion flows for effective video retrieval[J]. multimedia tools and applications,2012.
APA	Zhao, Zhe,Cui, Bin,Cong, Gao,Huang, Zi,&Shen, Heng Tao.(2012).Extracting representative motion flows for effective video retrieval.multimedia tools and applications.
MLA	Zhao, Zhe,et al."Extracting representative motion flows for effective video retrieval".multimedia tools and applications (2012).