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An armature structure for 3D shapes
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作者 JI Zhong-ping LIU Li-gang KIM Deok-soo 《Applied Mathematics(A Journal of Chinese Universities)》 SCIE CSCD 2014年第4期422-437,共16页
We present a novel armature structure for 3D articulated shapes, called SBall short for skeletal balls, which includes two parts: a one-dimensional skeleton and incident balls. Our algorithm mainly focuses on constru... We present a novel armature structure for 3D articulated shapes, called SBall short for skeletal balls, which includes two parts: a one-dimensional skeleton and incident balls. Our algorithm mainly focuses on constructing the armature structure. This structure is based on an approximation skeleton which is homotopy equivalent to the shape. Each ball in the structure connects a skeletal joint and an interior region of the shape. The boundary vertices on the shape surface are attached onto the SBall using the power diagram of the ball set. A bilateral O^tering algorithm and a variational segmentation algorithm are proposed to enhance the quality of SBall. Finally, applications of this structure are discussed. 展开更多
关键词 armature structure prong feature THINNING variational segmentation.
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