Dynamic scene understanding by improved sparse topical coding

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	Dynamic scene understanding by improved sparse topical coding
	Fu, Wei; Wang, Jinqiao; Lu, Hanqing; Ma, Songde
刊名	PATTERN RECOGNITION
	2013-07-01
卷号	46 期号:7 页码:1841-1850
关键词	Motion patterns Sparse topical coding Scene understanding
英文摘要	The explosive growth of cameras in public areas demands a technique which develops a fully automated surveillance and monitoring system. In this paper, we propose a novel unsupervised approach to automatically explore motion patterns occurring in dynamic scenes under an improved sparse topical coding (STC) framework. Given an input video, it is segmented into a sequence of clips without overlapping. Optical flow features are extracted from each pair of consecutive frames, and quantized into discrete visual flow words. Each video clip is interpreted as a document and visual flow words as words within the document. Then the improved STC is applied to explore latent patterns which represent the common motion distributions of the scene. Finally, each video clip is represented as a weighted summation of these patterns with only a few non-zero coefficients. The proposed approach is purely data-driven and scene independent, which make it suitable for very large range applications of scenarios, such as rule mining and abnormal event detection. Experimental results and comparisons on various public datasets demonstrate the promise of the proposed approach. Crown Copyright (C) 2012 Published by Elsevier Ltd. All rights reserved.
WOS标题词	Science & Technology ; Technology
类目[WOS]	Computer Science, Artificial Intelligence ; Engineering, Electrical & Electronic
研究领域[WOS]	Computer Science ; Engineering
关键词[WOS]	CLASSIFICATION
收录类别	SCI
语种	英语
WOS记录号	WOS:000317886600011
内容类型	期刊论文
源URL	[http://ir.ia.ac.cn/handle/173211/3372]
专题	自动化研究所_模式识别国家重点实验室_图像与视频分析团队
作者单位	Chinese Acad Sci, Inst Automat, Natl Lab Pattern Recognit, Beijing 100190, Peoples R China
推荐引用方式 GB/T 7714	Fu, Wei,Wang, Jinqiao,Lu, Hanqing,et al. Dynamic scene understanding by improved sparse topical coding[J]. PATTERN RECOGNITION,2013,46(7):1841-1850.
APA	Fu, Wei,Wang, Jinqiao,Lu, Hanqing,&Ma, Songde.(2013).Dynamic scene understanding by improved sparse topical coding.PATTERN RECOGNITION,46(7),1841-1850.
MLA	Fu, Wei,et al."Dynamic scene understanding by improved sparse topical coding".PATTERN RECOGNITION 46.7(2013):1841-1850.