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United States Patent
Image Object Matching Using Core Analysis
and Deformable Shape Loci
Patent Number: 5,926,568
Date of Patent: 20 July 1999
Inventors: Edward L. Chaney, (Efland, N.C.); Daniel S. Fritsch
(Chapel Hill, N.C.), Stephen M. Pizer (Chapel Hill, N.C.), Valen Johnson
(Durham, N.C.), Alyson G. Wilson (Las Cruces, N.M.)
Assignee: The University of North Carolina at Chapel Hill,
Chapel Hill, N.C.; Duke University, Durham, N.C.
Appl. No.: 885,330
Filed: June 30, 1997
Int. Cl.: G06K 009/64; G06K 009/68
U.S. Cl.: 382/217; 382/128; 382/203
31 Claims
Abstract
Methods, systems, and computer program products are provided
for automatic image recognition of standard shapes which
include a core-based deformable loci skeletal grid used to define
and represent an object via a model template. The template includes
deformable segments, the changes of which are measurable against
the deformed model corresponding to an object in a subsequent image.
Statistical correlation techniques optimize the match to further refine
the shape of the subsequent image.
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