Filterbank and DFT Based Fast Parallel Discrete Gabor Transform for Image Representation

Juan Juan Gu; Liang Tao

doi:10.4028/www.scientific.net/AMR.461.444

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HomeAdvanced Materials ResearchAdvanced Materials Research Vol. 461Filterbank and DFT Based Fast Parallel Discrete...

Filterbank and DFT Based Fast Parallel Discrete Gabor Transform for Image Representation

Abstract:

Fast parallel algorithm for the 2-D discrete Gabor transform (DGT) is presented based on 2-D filterbank. A 2-D analysis filterbank is designed for the 2-D DGT. The parallel channels in the filterbank have a unified structure and can apply the 2-D inverse fast discrete Fourier transform (IFFT) algorithm to reduce the computational load. The computational complexity of each parallel channel is very low and is independent of the oversampling rate. Thus, the proposed parallel algorithm is attractive for real time image processing.

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Periodical:

Advanced Materials Research (Volume 461)

Pages:

444-447

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.461.444

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Online since:

February 2012

Authors:

Juan Juan Gu, Liang Tao

Keywords:

Discrete Fourier Transform, Discrete Gabor Transform, Filterbank, Image Representation

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References

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