Robust CoHOG Feature Extraction in Human-Centered Image/Video Management System

CORC > 西安光学精密机械研究所 > 中国科学院西安光学精密机械研究所 > 光学影像学习与分析中心

	Robust CoHOG Feature Extraction in Human-Centered Image/Video Management System
	Pang, Yanwei 1; Yan, He 1; Yuan, Yuan2 ; Wang, Kongqiao 3
刊名	ieee transactions on systems man and cybernetics part b-cybernetics
	2012-04-01
卷号	42 期号:2 页码:458-468
关键词	Co-occurrence histograms of oriented gradients (CoHOGs) histograms of oriented gradients (HOGs) human-centered image retrieval human detection
ISSN号	1083-4419
产权排序	3
合作状况	国内
英文摘要	many human-centered image and video management systems depend on robust human detection. to extract robust features for human detection, this paper investigates the following shortcomings of co-occurrence histograms of oriented gradients (cohogs) which significantly limit its advantages: 1) the magnitudes of the gradients are discarded, and only the orientations are used; 2) the gradients are not smoothed, and thus, aliasing effect exists; and 3) the dimensionality of the cohog feature vector is very large (e.g., 200 000). to deal with these problems, in this paper, we propose a framework that performs the following: 1) utilizes a novel gradient decomposition and combination strategy to make full use of the information of gradients; (2) adopts a two-stage gradient smoothing scheme to perform efficient gradient interpolation; and (3) employs incremental principal component analysis to reduce the large dimensionality of the cohog features. experimental results on the two different human databases demonstrate the effectiveness of the proposed method.
学科主题	automation & control systems ; computer science ; artificial intelligence ; computer science ; cybernetics
WOS标题词	science & technology ; technology
类目[WOS]	automation & control systems ; computer science, artificial intelligence ; computer science, cybernetics
研究领域[WOS]	automation & control systems ; computer science
关键词[WOS]	support vector machines ; pedestrian detection ; image retrieval ; recognition ; segmentation ; surveillance ; subspace
收录类别	SCI ; EI
语种	英语
WOS记录号	WOS:000302097000014
公开日期	2012-09-03
内容类型	期刊论文
源URL	[http://ir.opt.ac.cn/handle/181661/20262]
专题	西安光学精密机械研究所_光学影像学习与分析中心
作者单位	1.Tianjin Univ, Sch Elect Informat Engn, Tianjin 300072, Peoples R China 2.Chinese Acad Sci, Ctr OPT IMagery Anal & Learning, State Key Lab Transient Opt & Photon, Xian Inst Opt & Precis Mech, Xian 710119, Peoples R China 3.Nokia Res Ctr, Beijing 100176, Peoples R China
推荐引用方式 GB/T 7714	Pang, Yanwei,Yan, He,Yuan, Yuan,et al. Robust CoHOG Feature Extraction in Human-Centered Image/Video Management System[J]. ieee transactions on systems man and cybernetics part b-cybernetics,2012,42(2):458-468.
APA	Pang, Yanwei,Yan, He,Yuan, Yuan,&Wang, Kongqiao.(2012).Robust CoHOG Feature Extraction in Human-Centered Image/Video Management System.ieee transactions on systems man and cybernetics part b-cybernetics,42(2),458-468.
MLA	Pang, Yanwei,et al."Robust CoHOG Feature Extraction in Human-Centered Image/Video Management System".ieee transactions on systems man and cybernetics part b-cybernetics 42.2(2012):458-468.