Uniqueness of shape recovery of a polyhedron from a single shading image

Jun Yang; Dili Zhang; Noboru Ohnishi; Noboru Sugie

doi:10.1117/12.253006

3 October 1996 Uniqueness of shape recovery of a polyhedron from a single shading image

Jun Yang, Dili Zhang, Noboru Ohnishi, Noboru Sugie

Proceedings Volume 2899, Automated Optical Inspection for Industry; (1996) https://doi.org/10.1117/12.253006
Event: Photonics China '96, 1996, Beijing, China

Abstract

We discuss the uniqueness of 3D shape recovery of a polyhedron from a single shading image, and propose an approach to uniquely determine the concave shape solution by using interreflections as a constraint. We show that if interreflection distribution is not considered, multiple convex (or concave) shape solutions usually exist for a pyramid with three or more visible facets. However, if interreflection distribution is used as a constraint to limit the shape of polyhedron, polyhedral shape can be uniquely determined. Interreflections, which were considered to be deleterious in conventional approaches, are an important constraint for shape-from-shading.

Citation Download Citation

Jun Yang, Dili Zhang, Noboru Ohnishi, and Noboru Sugie "Uniqueness of shape recovery of a polyhedron from a single shading image", Proc. SPIE 2899, Automated Optical Inspection for Industry, (3 October 1996); https://doi.org/10.1117/12.253006

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