Researchers Note Fundamental Ambiguity in Image Decomposition

Keenan Crane, a CMU researcher focused on geometry processing, replied that color images and video cannot be uniquely separated into geometry, materials, illumination, and camera parameters. He added that additional data will not resolve the issue. Alex Nichol, an OpenAI research engineer, replied that closer camera angles might improve geometry estimates from depth outputs of a model but said he cannot prove the approach works.