Consistent object representation method for computer vision applications

Kwanghoon Sohn, Jung H. Kim, Winser E. Alexander

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

The human visual system uses two-dimensional (2D) boundary information to recognize objects since the shape of the boundary usually contains the pertinent information about an object. Thus, representing a boundary concisely and consistently is necessary for object recognition. In this paper, we propose a consistent object representation method using mean field annealing (MFA) technique for computer vision applications. Since a curvature function computed on a preprocessed smooth boundary, which is obtained by the MFA approach is consistent, we can consistently detect corner points in this curvature function space. Furthermore, the MFA approach preserves the sharpness of corner points very well. Thus, we can detect corner points easier and better with this method than with other existing methods. Ideal corner points rarely exist for a real boundary. They are often rounded due to the smoothing effect of the preprocessing. In addition, a human recognizes both sharp corner points and slightly rounded segments as corner points. Thus, we use `corner sharpness,' which is qualitatively similar to a human's capability of detecting corner points, to increase the robustness of the proposed algorithm.

Original languageEnglish
Title of host publicationProceedings of SPIE - The International Society for Optical Engineering
PublisherSociety of Photo-Optical Instrumentation Engineers
Pages163-171
Number of pages9
ISBN (Print)0819416886
Publication statusPublished - 1994 Dec 1
EventIntelligent Robots and Computer Vision XIII: Algorithms and Computer Vision - Boston, MA, USA
Duration: 1994 Oct 311994 Nov 2

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
Volume2353
ISSN (Print)0277-786X

Other

OtherIntelligent Robots and Computer Vision XIII: Algorithms and Computer Vision
CityBoston, MA, USA
Period94/10/3194/11/2

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Computer Science Applications
  • Applied Mathematics
  • Electrical and Electronic Engineering

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  • Cite this

    Sohn, K., Kim, J. H., & Alexander, W. E. (1994). Consistent object representation method for computer vision applications. In Proceedings of SPIE - The International Society for Optical Engineering (pp. 163-171). (Proceedings of SPIE - The International Society for Optical Engineering; Vol. 2353). Society of Photo-Optical Instrumentation Engineers.