The visual hull of solids of revolution

Author

Laurentini, A.

Author_Institution

Dipartimento di Automatica ed Inf., Politecnico di Torino, Italy

fYear

1992

fDate

30 Aug-3 Sep 1992

Firstpage

720

Lastpage

724

Abstract

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

Keywords

computational complexity; computational geometry; image recognition; image reconstruction; 3-D object; complexity; computational geometry; concave object recognition; geometric tool; image recognition; image reconstruction; silhouettes; solids of revolution; visual hull; Algorithm design and analysis; Humans; Image reconstruction; Layout; Object recognition; Shape; Solids; Surface reconstruction; Tires;

fLanguage

English

Publisher

ieee

Conference_Titel

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

Conference_Location

The Hague

Print_ISBN

0-8186-2910-X

Type

conf

DOI

10.1109/ICPR.1992.201662

Filename

201662