Patent ID: 6624821
Filing Date: 2003-09-23
Classification: G06F,G06K,G06T

Abstract:
A method for describing texture features of an image, comprising the steps of:(a) filtering input images using predetermined filters having different orientation coefficients; (b) projecting the filtered images onto axes of each predetermined direction to obtain data groups consisting of averages of directional pixel values; (c) selecting candidate data groups among the data groups by a predetermined classification method; (d) determining a plurality of indicators based on orientation coefficients of the filters used in filtering the candidate data groups; (e) determining the plurality of indicators as the texture descriptor of the image; and (f) determining another indicator based on a presence of graphs filtered by filters having scale coefficients or orientation coefficients which are close to or identical with the scale coefficients or orientation coefficients of the filters used in filtering the selected candidate data groups.