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Proceedings Paper

Building hierarchical vision model of objects with multiple representations
Author(s): Bir Bhanu; Chih-Cheng Ho
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Paper Abstract

Building a hierarchical vision model of an object with multiple representations requires two steps: (1) decomposing the object into parts/subparts and obtaining appropriate representations, and (2) constructing relational links between decomposed parts/subparts obtained in step 1. In this paper, we describe volume-based decomposition and surface-based decomposition of 3-D objects into parts, where the objects are designed by a B-spline based geometric modeler called Alpha-1. Multiple-representation descriptions can be derived for each of these subparts using various techniques such as polygonal approximation, concave/convex edge detection, curvature extrema, and surface normals. For example, subparts of a hammer can be described by two generalized cylinders or one generalized cylinder and one polyhedron. Several examples are presented.

Paper Details

Date Published: 1 March 1992
PDF: 12 pages
Proc. SPIE 1708, Applications of Artificial Intelligence X: Machine Vision and Robotics, (1 March 1992); doi: 10.1117/12.58610
Show Author Affiliations
Bir Bhanu, Univ. of California/Riverside (United States)
Chih-Cheng Ho, Univ. of Utah (United States)

Published in SPIE Proceedings Vol. 1708:
Applications of Artificial Intelligence X: Machine Vision and Robotics
Kevin W. Bowyer, Editor(s)

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