PDE Based Shape from Specularities

A variational analysis of shape from specularities using sparse data

“…which is what was proposed in [17] in a more ad hoc fashion. This approach is also related to the point set attractors in [10].…”

“…Also related is [18] where an algorithm for computing the mirror shape for a catadioptic imaging system is presented. A first attempt to use implicit surfaces for shape from specularities with sparse data was made in [17]. Methods for determining the constraints on the surface normal for general light source positions are proposed in [16].…”

A Geodesic Active Contour Framework for Finding Glass

“…On the other hand, transparent objects are characterized by the fact that one can see through them, rather than by any intrinsic texture pattern. The main focus of the machine vision research dealing with transparent objects has been concerned with 3D structure from X [4,9,15,16,22] and layer separation in the case of reflections [12,23]. Relatively little work has been concerned with the automatic identification of objects made of transparent materials [18].…”