Shape from silhouettes based on a centripetal pentahedron model

doi:10.1016/j.gmod.2006.06.003

	Shape from silhouettes based on a centripetal pentahedron model
	Liu, Xin 1; Yao, Hongxun 1; Chen, Xilin 2; Gao, Wen 1,2
	2008
发表期刊	GRAPHICAL MODELS
ISSN	1524-0703
卷号	70 页码:133-148
摘要	In this paper we present a novel volumetric shape from silhouette (SfS) algorithm based on a centripetal pentahedron model (pent-model). The pent-model is an object-centered volumetric model composed of a set of pentahedrons cut from the centripetal triangular pyramids, which together partition the 3D space. The SfS algorithm first computes the pyramids by Constructing a geodesic sphere. These pyramids are then projected onto the image planes of all cameras. The intersections between the projected pyramids and the silhouettes, which are a set of hexagons, are Computed. This process can be performed very efficiently with pre-computed polar Silhouette graphs (PSGs) and reduced PSGs. The hexagons are then back-projected into the 3D space, where the intersections are calculated and the pent-model is derived. After that, a mesh surface model can be extracted by marching pentahedrons. Our algorithm has the combined advantages of robustness, speediness and preciseness. Experimental results based on both synthetic images and real photos are presented. (c) 2008 Elsevier Inc. All rights reserved.
关键词	Shape from silhouettes Visual hull Centripetal pentahedron model Polar silhouette graph Marching pentahedrons
DOI	10.1016/j.gmod.2006.06.003
收录类别	SCI
语种	英语
资助项目	New Century Excellent Talents in University[NCET-05-03 34] ; NSFC[60472043] ; NSFC[60332010/F01]
WOS研究方向	Computer Science
WOS类目	Computer Science, Software Engineering
WOS记录号	WOS:000261456500011
出版者	ACADEMIC PRESS INC ELSEVIER SCIENCE
引用统计	被引频次：4[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/2XEOYT63/11418
专题	中国科学院计算技术研究所期刊论文_英文
通讯作者	Liu, Xin
作者单位	1.Harbin Inst Technol, Sch Comp Sci & Technol, Harbin 150001, Peoples R China 2.Chinese Acad Sci, Inst Comp Technol, Beijing, Peoples R China
推荐引用方式 GB/T 7714	Liu, Xin,Yao, Hongxun,Chen, Xilin,et al. Shape from silhouettes based on a centripetal pentahedron model[J]. GRAPHICAL MODELS,2008,70:133-148.
APA	Liu, Xin,Yao, Hongxun,Chen, Xilin,&Gao, Wen.(2008).Shape from silhouettes based on a centripetal pentahedron model.GRAPHICAL MODELS,70,133-148.
MLA	Liu, Xin,et al."Shape from silhouettes based on a centripetal pentahedron model".GRAPHICAL MODELS 70(2008):133-148.