TLDR Humans can perceive 3D world from images that aren't 3D consistent, but why can't machines? COLMAP cannot reconstruct non-geometric hand-drawn images even with perfect correspondences! Toon3D can recover camera poses and dense geometry with piecewise-rigid deformable optimization. Hand-drawn scenes are not 3D consistent, so we create Toon3D to recover camera poses and dense geometry! We do th