Background of shape contexts for point matching

doi:10.1016/j.patrec.2016.07.016

	Background of shape contexts for point matching
	Qian, Deheng 1; Chen, Tianshi 2,3; Qiao, Hong 3,4
	2016-12-01
发表期刊	PATTERN RECOGNITION LETTERS
ISSN	0167-8655
卷号	84 页码:114-119
摘要	Point matching seeks the optimal correspondences between two sets of points. It is often tackled via assigning each point a set of features and minimizing the dissimilarities of corresponded features. In this process, a kind of widely applied features is the Shape Contexts (SC). Given a reference point, SC exploits the relative positions between this point and the remaining points. However, SC omits the relative positions among the remaining points, which limits its distinctiveness. In this paper, we propose a new kind of features, called the Background of Shape Contexts (BSC), which encodes not only these relative positions between the reference point and the remaining points, but also those among the remaining points. The BSC concisely presents the relative positions among feature points by edges among the points. The distribution of edges is then calculated in a Coordinate-Gradient Space (CGS). The CGS is a combination of a gradient space and a Euclidean space which can be 2D or 3D. Finally, the BSC exploits histograms to capture the distribution of edges in the CGS. We evaluate the BSC on multiple matching experiments over widely used datasets and demonstrate the effectiveness of the BSC. (C) 2016 Elsevier B. V. All rights reserved.
关键词	Point matching Shape context Local feature
DOI	10.1016/j.patrec.2016.07.016
收录类别	SCI
语种	英语
资助项目	Strategic Priority Research Program, Chinese Academy of Sciences[XDB02080003] ; BMST[D16110400140000] ; BMST[D161100001416001] ; National Natrual Science Fundation of China[61522211] ; National Natrual Science Fundation of China[61473275]
WOS研究方向	Computer Science
WOS类目	Computer Science, Artificial Intelligence
WOS记录号	WOS:000390660900017
出版者	ELSEVIER SCIENCE BV
引用统计	被引频次：1[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://119.78.100.204/handle/2XEOYT63/7711
专题	中国科学院计算技术研究所期刊论文_英文
通讯作者	Qiao, Hong
作者单位	1.Samsung Res Inst China Beijing SRC B, Beijing 100028, Peoples R China 2.Chinese Acad Sci, State Key Lab Comp Architecture, Inst Comp Technol, Beijing 100190, Peoples R China 3.Chinese Acad Sci, Ctr Excellence Brain Sci & Intelligence Technol, Shanghai 200031, Peoples R China 4.Chinese Acad Sci, State Key Lab Management & Control Complex Syst, Inst Automat, Beijing 100190, Peoples R China
推荐引用方式 GB/T 7714	Qian, Deheng,Chen, Tianshi,Qiao, Hong. Background of shape contexts for point matching[J]. PATTERN RECOGNITION LETTERS,2016,84:114-119.
APA	Qian, Deheng,Chen, Tianshi,&Qiao, Hong.(2016).Background of shape contexts for point matching.PATTERN RECOGNITION LETTERS,84,114-119.
MLA	Qian, Deheng,et al."Background of shape contexts for point matching".PATTERN RECOGNITION LETTERS 84(2016):114-119.