A Theory of Shape Reconstruction from Heat Conduction and Shading
Shape from shading using a single image of a Lam- bertian surface is inherently ambiguous. When the light source direction is known, the surface normal estimation has a cone- ambiguity, which worsens when the source is unknown.
By Akihiko Oharazawa, Sriram Narayanan, Mani Ramanagopal, Srinivasa G. NarasimhanarXiv - cs.CV (CV)
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Originally published by arXiv - cs.CV (CV) on Oct 6, 2026.
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