PuzzleFusion++: Auto-agglomerative 3D Fracture Assembly by Denoise and Verify

Figure 1 : PuzzleFusion++ iteratively aligns and assembles fracture fragments into a 3D shape, resembling how humans solve jigsaw puzzles. At each iteration, a diffusion model solves for the 6-DoF alignments of the fragments, and a transformer verifies the pairwise alignments and merge them into larger fragments. We call our approach "auto-agglomerative," referring to auto-regressive methods for the iterative process and agglomeration clustering for the hierarchical grouping.