Title :
Self-organizing segmentor and feature extractor
Author :
Dony, Robert D. ; Haykin, Simon
Author_Institution :
Commun. Res. Lab., McMaster Univ., Hamilton, Ont., Canada
Abstract :
Proposes a novel approach to segmentation using a combination of Hebbian learning and competitive learning in a self-organizing manner. The network is modular, with each module corresponding to a different class of the input data. A module consists of a weight vector that is calculated during an initial training period. The appropriate class for a given input vector is determined by a maximum entropy classifier. The resulting network consistently extracts perceptually relevant features from image data. As well, the class representations are analogous to the arrangement of directionally sensitive columns in the visual cortex
Keywords :
Hebbian learning; data compression; feature extraction; image coding; image segmentation; maximum entropy methods; self-organising feature maps; unsupervised learning; Hebbian learning; class representations; competitive learning; directionally sensitive columns; feature extractor; image data; input vector; maximum entropy classifier; modular network; self-organizing segmentor; training period; visual cortex; weight vector; Distortion; Entropy; Equations; Feature extraction; Image coding; Image segmentation; Tellurium; Transform coding; Upper bound; Vectors;
Conference_Titel :
Image Processing, 1994. Proceedings. ICIP-94., IEEE International Conference
Conference_Location :
Austin, TX
Print_ISBN :
0-8186-6952-7
DOI :
10.1109/ICIP.1994.413716