PatchScene: Patch-based Voxel Diffusion for Large-Scale Scene Completion
PatchScene proposes a diffusion framework for large-scale LiDAR scene completion using a patch-based voxel approach. It divides the scene into overlapping patches and applies independent diffusion to each, significantly reducing computational load. It ensures global consistency through spatial and temporal fusion mechanisms and uses an annular flow strategy to achieve spatially infinite scene completion.