Representing and classifying 2D shapes of real-world objects using neural networks

Lukasz A. Machowski, Tshilidzi Marwala

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

3 Citations (Scopus)

Abstract

A framework is presented which uses a polar representation of a segmented object for shape classification. This method produces a position, rotation and scale invariant representation of the shape. An efficient method for extracting multiple contours from the polar representation is used to handle the problem of many-to-one mappings in the radial and angular parameters. The contours are used to find interesting vertices of the shape. The shape information is mapped to spatial regions on a polar grid and fed into a multi-layer perceptron for classification. The framework is tested on manually segmented images of people's hands and on side views of automobiles. The results show that the network can achieve approximately 100% generalization on test data even though the network is under trained.

Original languageEnglish
Title of host publication2004 IEEE International Conference on Systems, Man and Cybernetics, SMC 2004
Pages6366-6372
Number of pages7
DOIs
Publication statusPublished - 2004
Externally publishedYes
Event2004 IEEE International Conference on Systems, Man and Cybernetics, SMC 2004 - The Hague, Netherlands
Duration: 10 Oct 200413 Oct 2004

Publication series

NameConference Proceedings - IEEE International Conference on Systems, Man and Cybernetics
Volume7
ISSN (Print)1062-922X

Conference

Conference2004 IEEE International Conference on Systems, Man and Cybernetics, SMC 2004
Country/TerritoryNetherlands
CityThe Hague
Period10/10/0413/10/04

Keywords

  • Classification
  • Neural network
  • Polar representation
  • Shape

ASJC Scopus subject areas

  • General Engineering

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