Title :
Self-organizing neural nets in signal and image representation
Author :
Nair, Rajendran ; Aravena, Jorge L.
Author_Institution :
Dept. of Electr. & Comput. Eng., Louisiana State Univ., Baton Rouge, LA, USA
Abstract :
This paper explores the use of piecewise linear approximations to create compact representations of 1-D signals and 2-D thinned edge-extracted images. We use a self-organizing neural net to cluster suitably coded data. The unsupervised training of the net is improved with the use of the reducing spheres of influence. Experimental results indicate that the technique tends to eliminate the problem of neurons capturing incorrect patterns and provides for better clustering. Computationally, the technique is less complex than conscience learning and produces similar results
Keywords :
edge detection; image representation; piecewise-linear techniques; self-organising feature maps; signal representation; unsupervised learning; 1D signals; 2D thinned edge-extracted images; clustering; compact representations; image representation; piecewise linear approximations; self-organizing neural nets; signal representation; unsupervised training; Data compression; Image recognition; Image representation; Neural networks; Neurons; Pattern recognition; Piecewise linear approximation; Piecewise linear techniques; Shape; Signal processing;
Conference_Titel :
Circuits and Systems, 1994., Proceedings of the 37th Midwest Symposium on
Conference_Location :
Lafayette, LA
Print_ISBN :
0-7803-2428-5
DOI :
10.1109/MWSCAS.1994.519307