Shape recognition using FFT preprocessing and neural network
ISSN: 0332-1649
Article publication date: 1 October 1998
Abstract
The paper presents the application of neural network to the classification of the closed contours forming different shapes. The shape is represented by ‐ samples of complex numbers zk = xk + jyk where xk and yk are the samples in the x‐y plane and j is the complex operator. The same shapes may vary in scale, be rotated and translated in arbitrary proportion and be distorted by the noise. To obtain the classification invariant to all these factors the preprocessing techniques based on the application of Fourier transformation of the samples have been applied. The Fourier coefficients form the input data to the neural classifier. Different shapes have been checked in numerical experiments and the results have proved good performance of the developed neural classifier and its relative insensitivity to the noise.
Keywords
Citation
Nghia Do, D. and Osowski, S. (1998), "Shape recognition using FFT preprocessing and neural network", COMPEL - The international journal for computation and mathematics in electrical and electronic engineering, Vol. 17 No. 5, pp. 658-666. https://doi.org/10.1108/03321649810221017
Publisher
:MCB UP Ltd
Copyright © 1998, MCB UP Limited