运用边界状态约束的表面体素加密细分算法

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.