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Efficient polygonization of tree trunks modeled by convolution surfaces

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Abstract

We present an efficient polygonization approach for tree trunks modeled by line skeleton-based convolution surfaces. A quad-dominated non-convex bounding polyhedron is firstly created along the skeleton, which is then tetrahedralized and subdivided into the pre-defined resolution. After that, the iso-surface within each tetrahedron is extracted using marching tetrahedra. Our algorithm can generate polygons with adaptive edge lengths according to the thickness of the trunk. In addition, we present an efficient CUDA-based parallel algorithm utilizing the high parallelism of the tetrahedron subdivision, the potential field calculation, and the iso-surface extraction.

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Authors and Affiliations

  1. State Key Laboratory of CAD & CG, Zhejiang University, Hangzhou, 310058, China

    XiaoQiang Zhu, XueKun Guo & XiaoGang Jin

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  1. XiaoQiang Zhu
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  2. XueKun Guo
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  3. XiaoGang Jin
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Correspondence to XiaoGang Jin.

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Zhu, X., Guo, X. & Jin, X. Efficient polygonization of tree trunks modeled by convolution surfaces. Sci. China Inf. Sci. 56, 1–12 (2013). https://doi.org/10.1007/s11432-013-4790-0

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  • DOI: https://doi.org/10.1007/s11432-013-4790-0

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