A Novel Volumetric Shape from Silhouette Algorithm Based on a Centripetal Pentahedron Model

Xin Liu Xin Liu,Hongxun Yao Hongxun Yao,Wen Gao,Guilin Yao Guilin Yao

doi:10.1109/icpr.2006.146

A Novel Volumetric Shape from Silhouette Algorithm Based on a Centripetal Pentahedron Model

Xin Liu Xin Liu, Hongxun Yao Hongxun Yao + Show 2 more

https://doi.org/10.1109/icpr.2006.146

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Publication Date: Jan 1, 2006

Citations: 15

Affiliation: Harbin Institute of Technology

#Volumetric Shape #Geodesic Sphere + Show 8 more

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Abstract

In this paper we present a novel volumetric shape from silhouette algorithm based on a centripetal pentahedron model. The algorithm first partitions the space with a set of infinite triangular pyramids derived from a geodesic sphere. Then the pyramids are cut by silhouettes into a set of pentahedrons, which together constitute the centripetal pentahedron model of the visual hull. This process is accelerated by pre-computed polar silhouette graphs (PSGs) and reduced PSGs. Finally a mesh surface model is extracted by marching pentahedrons. Our algorithm has the advantages of robustness, speediness and preciseness

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