Texture description method and texture-based image retrieval method using Gabor filter in frequency domain
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United States of America Patent
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Mar 22, 2005
Grant Date -
Oct 18, 2001
app pub date -
Dec 4, 2000
filing date -
Dec 3, 1999
priority date (Note) -
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Abstract
A texture description method in a frequency domain for extracting texture features by transforming and Gabor-filtering an input image into an image of the frequency domain, and a texture-based retrieval method thereof are provided. The texture description method in the frequency domain includes: a first step of transforming an image of a time domain into an image of the frequency domain; a second step of filtering the transformed image using a Gabor filter having N.times.M filter regions, where N and M are respective predetermined positive integers; a third step of extracting feature values of the image that has been Gabor-filtered in respective channels of the frequency domain division layout corresponding to the N.times.M filter regions of the Gabor filter; and a fourth step of deciding a texture descriptor of the image on the basis of the feature values of the image.
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