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The Role of Knowledge in Visual Shape Representation

This report shows how knowledge about the visual world can be built into a shape representation in the form of a descriptive vocabulary making explicit the important geometrical relationships comprising objects' shapes. Two computational tools are offered: (1) Shapestokens are placed on a Scale-Space Blackboard, (2) Dimensionality-reduction captures deformation classes in configurations of tokens. Knowledge lies in the token types and deformation classes tailored to the constraints and regularities ofparticular shape worlds. A hierarchical shape vocabulary has been implemented supporting several later visual tasks in the two-dimensional shape domain of the dorsal fins of fishes.

Identiferoai:union.ndltd.org:MIT/oai:dspace.mit.edu:1721.1/6833
Date01 October 1988
CreatorsSaund, Eric
Source SetsM.I.T. Theses and Dissertation
Languageen_US
Detected LanguageEnglish
Format300 p., 38394678 bytes, 31060480 bytes, application/postscript, application/pdf
RelationAITR-1092

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