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The visual hull of solids of revolution

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1 Author(s)
Laurentini, A. ; Dipartimento di Automatica ed Inf., Politecnico di Torino, Italy

The visual hull of a 3-D object is a new geometric tool for dealing with concave object recognition or reconstruction using silhouettes. Two equivalent definitions of the visual hull of an object S can be given: (i) the maximal object silhouette-equivalent to S (that gives the same silhouettes as S); (ii) the closest approximation of S that can be obtained with volume intersection techniques. The paper addresses the problem of computing the visual hull of solids of revolution. An algorithm for this purpose is presented and its complexity analyzed. The algorithm operates in an axial plane of S dissected by straight lines and hyperbolae

Published in:

Pattern Recognition, 1992. Vol.I. Conference A: Computer Vision and Applications, Proceedings., 11th IAPR International Conference on

Date of Conference:

30 Aug-3 Sep 1992