【Key words】 3D scanning； reverse engineering； parameter calibration； data repairing； point cloud compression； 3D reconstruction； triangle mesh simplification；
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算法首先对原始三角网格构造一个累进网格，把三角网格简化成最简单的形式，四面体。
The algorithm first construct a progressive mesh based on the source mesh and change the mesh into the simplest form, tetrahedron.
为了提高网格简化后的三角形质量，提出了一种新的基于顶点局部多项式曲面拟合的三角网格简化算法。
To enhance the triangle quality of the simplified mesh, a novel triangular mesh simplification algorithm based on local polynomial fitting surface of vertices was proposed.
给出了一种基于三角形内角加权和二次误差度量的三角形折叠算法来简化三角网格模型。
A triangle collapse algorithm is presented, which is based on internal angles weighted and quadric error metrics to simplify mesh models.
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