Neural-Fuzzy Models for Multispectral Image Analysis

  • Authors:
  • Arun D. Kulkarni

  • Affiliations:
  • Computer Science Department, The University of Texas, Tyler, TX 75701

  • Venue:
  • Applied Intelligence
  • Year:
  • 1998

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Abstract

In this paper, we consider neural-fuzzy models formultispectral image analysis. We consider both supervised andunsupervised classification. The model for supervisedclassification consists of six layers. The first three layersmap the input variables to fuzzy set membership functions. Thelast three layers implement the decision rules. The modellearns decision rules using a supervised gradient descentprocedure. The model for unsupervised classification consists oftwo layers. The algorithm is similar to competitive learning.However, here, for each input sample, membership functions ofoutput categories are used to update weights. Input vectors arenormalized, and Euclidean distance is used as the similaritymeasure. In this model if the input vector does not satisfy the“similarity criterion,” a new cluster is created; otherwise, theweights corresponding to the winner unit are updated using thefuzzy membership values of the output categories. We havedeveloped software for these models. As an illustration, themodels are used to analyze multispectral images.