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New Concepts for Three-Dimensional Shape Analysis

Udupa, KJ and Murthy, ISN (1977) New Concepts for Three-Dimensional Shape Analysis. In: IEEE Transactions on Computers, C-26 (10). pp. 1043-1049.

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A new approach to machine representation and analysis of three-dimensional objects is presented. The representation, based on the notion of "skeleton" of an object leads to a scheme for comparing two given object views for shape relations. The objects are composed of long, thin, rectangular prisms joined at their ends. The input picture to the program is the digitized line drawing portraying the three-dimensional object. To compare two object views, two characteristic vertices called "cardinal point" and "end-cardinal point," occurring consistently at the bends and open ends of the object are detected. The skeletons are then obtained as a connected path passing through these points. The shape relationships between the objects are then obtained from the matching characteristics of their skeletons. The method explores the possibility of a more detailed and finer analysis leading to detection of features like symmetry, asymmetry and other shape properties of an object.

Item Type: Journal Article
Publication: IEEE Transactions on Computers
Publisher: IEEE
Additional Information: Copyright 1977 IEEE. Personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution to servers or lists, or to reuse any copyrighted component of this work in other works must be obtained from the IEEE.
Department/Centre: Division of Electrical Sciences > Electrical Engineering
Date Deposited: 05 Jan 2012 09:14
Last Modified: 05 Jan 2012 09:14
URI: http://eprints.iisc.ac.in/id/eprint/43068

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