关键词: 表面细分, 多分辨率, 体素化, 边界状态约束算法

Abstract: To balance the voxel number and surface fineness of voxel model,a refinement method for solid models was proposed.The surface voxels of the low-resolution uniform model were divided firstly,and sub-voxels not intersecting any triangle were marked.Boundary state constraints method was used to determine whether a marked voxel was inside or outside the model.Neighbor searching scheme across different octree nodes was achieved by encoding rules,which could realize multi-level refinement.The result showed that starting from the low-resolution voxel model,the proposed method could produce accurate high-resolution model with fewer voxels.

Key words: surface refinement, multi-scale resolution, voxelization, boundary state constraint algorithm