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Issue No.01 - January (1993 vol.15)
pp: 3-18
<p>Inference of 3-D shape from 2-D contours in a single image is an important problem in machine vision. The authors survey classes of techniques proposed in the past and provide a critical analysis. They show 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. They derive the constraints imposed by these symmetries and show how to use them to infer 3-D shape. They also discuss the zero Gaussian curvature (ZGC) surfaces in depth and show results on the recovery of surface orientation for various ZGC surfaces.</p>
3D shape inference; 2D contours; parallel symmetries; surface orientation recovery; image recognition; machine vision; skew symmetries; zero Gaussian curvature; computer vision; image recognition; inference mechanisms
F. Ulupinar, R. Nevatia, "Perception of 3-D Surfaces from 2-D Contours", IEEE Transactions on Pattern Analysis & Machine Intelligence, vol.15, no. 1, pp. 3-18, January 1993, doi:10.1109/34.184771
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