NDLI: DFT-based fast algorithms for 2-D discrete Gabor transform

Content Provider	IEEE Xplore Digital Library
Author	Xian-He Gao Xue-You Hu Liang Tao
Copyright Year	2009
Description	Author affiliation: Dept. of Electronic Information & Electrical Engineering, Hefei University, Anhui 230022, China (Xian-He Gao) \|\| School of Compute Science & Technology, Anhui University, Hefei, 230039, China (Xue-You Hu; Liang Tao)
Abstract	The 2-D Gabor transform has been recognized as being very useful in diverse areas such as image compression, texture analysis, image segmentation, and image recognition; however, its real-time applications have been limited due to the high computational complexity of the 2-D discrete Gabor transform (DGT) algorithms. The contributions of this paper include: (1) the oversampled 2-D DGT is presented, which can utilize the fast DFT and inverse DFT algorithms for fast computation of the 2-D DGT coefficients of an image and for the fast reconstruction of the original image from the coefficients, and (2) a fast computation method of the biorthogonal analysis windows based on the 2-D biorthogonality relationship of the 2-D DGT is provided. The proposed algorithms are attractive for real time image processing.
Starting Page	266
Ending Page	269
File Size	2074638
Page Count	4
File Format	PDF
ISBN	9781424445448
DOI	10.1109/PEITS.2009.5407020
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2009-12-19
Publisher Place	China
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Algorithm design and analysis Image recognition Image processing discrete Gabor transform (DGT) discrete Fourier transform (DFT) Image texture analysis Computational complexity Image reconstruction Discrete transforms Image segmentation Image analysis Image coding biorthogonal analysis windows
Content Type	Text
Resource Type	Article

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