首页> 外文会议>Advances in Image and Video Technology; Lecture Notes in Computer Science; 4319 >A Geometry-Driven Hierarchical Compression Technique for Triangle Meshes
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A Geometry-Driven Hierarchical Compression Technique for Triangle Meshes

机译:三角形网格的几何驱动分层压缩技术

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A geometry-driven hierarchical compression technique for triangle meshes is proposed such that the compressed 3D models can be efficiently transmitted in a multi-resolution manner. In 3D progressive compression, we usually simplify the finest 3D model to the coarsest mesh vertex by vertex and thus the original model can be reconstructed from the coarsest mesh by operating vertex-split operations in the inversed vertex simplification order. In general, the cost for the vertex-split operations will be increased as the mesh grows. In this paper, we propose a hierarchical compression scheme to keep the cost of the vertex-split operations being independent to the size of the mesh. In addition, we propose a geometry-driven technique, which predicts the connectivity relationship of vertices based on their geometry coordinates, to compress the connectivity information efficiently. The experimental results show the efficiency of our scheme.
机译:提出了一种用于三角形网格的几何驱动分层压缩技术,从而可以以多分辨率方式有效地传输压缩的3D模型。在3D渐进压缩中,我们通常将最精细的3D模型逐个顶点简化为最粗糙的网格顶点,因此可以通过按逆向顶点简化顺序进行顶点分割操作,从最粗糙的网格中重建原始模型。通常,随着网格的增长,顶点分割操作的成本也会增加。在本文中,我们提出了一种分层压缩方案,以使顶点分割操作的成本与网格的大小无关。另外,我们提出了一种几何驱动技术,该技术基于顶点的几何坐标预测顶点的连接关系,以有效地压缩连接信息。实验结果表明了该方案的有效性。

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