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.