Reproduce “Multistable Shape from Shading Emerges from Patch Diffusion” on OpenResearch
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About this paper
Xinran Nicole Han, Todd Zickler, Ko Nishino
The authors present a patchwise diffusion model that infers surface normals from grayscale shading while preserving competing shape interpretations. It coordinates neighboring patches for coherent surfaces and uses multiscale sampling and lighting-consistency guidance. On the “four circles” stimulus, its samples are closer than Wonder3D’s to a reference distribution containing both convex and concave shapes, but this is not a measure of human perception.
Summary by alphaXiv.
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