多分辨率网格的数据压缩

Data Compression for Multi-resolution Mesh

在对三角形网格多分辨率分析中,为了避免重新网格化的过程,基于小波变换,扩展了Lounsbery的方法。该算法直接对不规则网格进行渐进压缩,得到了不同分辨率的网格。在此过程中还可以基于三角形网格的连接信息,对三角形网格进行优化,使之更加规则,从而使本文算法得到了改善。实验结果表明,算法速度快,效果良好,有一定的实用性。

At the process of multi-resolution analysis for triangle meshes, in order to avoid the remeshing of the existing 3D data, based on the wavelet, we extend Lounsbery＇ scheme. Based on the algorithm, we can directly compress the irregular meshes, and then obtain multi-resolution meshes. In the process, based on the connectivity of the processed meshes, we can also optimize the triangle meshes, make them more regular, and then improve the algorithm. The results have proved that the proposed algorithm has good speed, efficiency and practical values.