Perception of 3-D surfaces from 2-D contours

F. Ulupinar, R. Nevatia
1993 IEEE Transactions on Pattern Analysis and Machine Intelligence  
Abstruct-Inference of 3-D shape from 2-D contours in a single image is an important problem in machine vision. We survey classes of techniques proposed in the past and provide a critical analysis. We propose that two kinds of symmetries in figures, which are known as parallel and skew symmetries, give significant information about surface shape for a variety of objects. We derive the constraints imposed by these symmetries and show how to use them to infer 3-D shape. We discuss the zero
more » ... curvature (ZGC) surfaces in depth and show results on the recovery of surface orientation for various ZGC surfaces. Index Terms-Shape from contour, symmetry analysis, zero Gaussian curvature surfaces.
doi:10.1109/34.184771 fatcat:t6rep6oayje5jiqummalte5cli