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Title: A fast implementation of the discrete 2-D Gabor transform
Authors: Srinivasan, V. 
Bhatia, P.
Ong, S.H. 
Keywords: fast algorithms
Gabor transform
iterative methods
neural networks
Issue Date: Mar-1993
Citation: Srinivasan, V.,Bhatia, P.,Ong, S.H. (1993-03). A fast implementation of the discrete 2-D Gabor transform. Signal Processing 31 (2) : 229-233. ScholarBank@NUS Repository.
Abstract: An FFT-based gradient descent method for computing the non-orthogonal Gabor transform of a two-dimensional discrete signal I[x,y] is described. When operating on images consisting of P × Q pixels divided into sub-images with M × N pixels, the estimated gain in computational speed over a neural network method proposed by Daugman is by a factor of kMN, where k = 10/[3 log2(4MN) +4]. © 1993.
Source Title: Signal Processing
ISSN: 01651684
Appears in Collections:Staff Publications

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