Toward accurate real-time marker labeling for live optical motion capture

doi:10.1007/s00371-017-1400-y

	Toward accurate real-time marker labeling for live optical motion capture
	Xia, Shihong 1; Su, Le 1,2; Fei, Xinyu 1,2; Wang, Han 1,2
	2017-06-01
发表期刊	VISUAL COMPUTER
ISSN	0178-2789
卷号	33 期号:6-8 页码:993-1003
摘要	Marker labeling plays an important role in optical motion capture pipeline especially in real-time applications; however, the accuracy of online marker labeling is still unclear. This paper presents a novel accurate real-time online marker labeling algorithm for simultaneously dealing with missing and ghost markers. We first introduce a soft graph matching model that automatically labels the markers by using Hungarian algorithm for finding the global optimal matching. The key idea is to formulate the problem in a combinatorial optimization framework. The objective function minimizes the matching cost, which simultaneously measures the difference of markers in the model and data graphs as well as their local geometrical structures consisting of edge constraints. To achieve high subsequent marker labeling accuracy, which may be influenced by limb occlusions or self-occlusions, we also propose an online high-quality full-body pose reconstruction process to estimate the positions of missing markers. We demonstrate the power of our approach by capturing a wide range of human movements and achieve the state-of-the-art accuracy by comparing against alternative methods and commercial system like VICON.
关键词	Motion capture Marker labeling Graph matching Point correspondence
DOI	10.1007/s00371-017-1400-y
收录类别	SCI
语种	英语
WOS研究方向	Computer Science
WOS类目	Computer Science, Software Engineering
WOS记录号	WOS:000402964800029
出版者	SPRINGER
引用统计	被引频次：5[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/2XEOYT63/7141
专题	中国科学院计算技术研究所期刊论文_英文
通讯作者	Xia, Shihong
作者单位	1.Chinese Acad Sci, Inst Comp Technol, Beijing, Peoples R China 2.Univ Chinese Acad Sci, Beijing, Peoples R China
推荐引用方式 GB/T 7714	Xia, Shihong,Su, Le,Fei, Xinyu,et al. Toward accurate real-time marker labeling for live optical motion capture[J]. VISUAL COMPUTER,2017,33(6-8):993-1003.
APA	Xia, Shihong,Su, Le,Fei, Xinyu,&Wang, Han.(2017).Toward accurate real-time marker labeling for live optical motion capture.VISUAL COMPUTER,33(6-8),993-1003.
MLA	Xia, Shihong,et al."Toward accurate real-time marker labeling for live optical motion capture".VISUAL COMPUTER 33.6-8(2017):993-1003.