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Digital video texture analytic method

A digital image and image technology, applied in the field of analyzing digital image texture structure, can solve different problems

Inactive Publication Date: 2004-11-10
SAMSUNG ELECTRONICS CO LTD +1
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] However, according to conventional digital image texture analysis methods, in the case where one image is rotated, enlarged, or reduced relative to the other image, even when the texture structure of the image is similar to that of the other image, analyzing the texture of the two images The result of the structure is also different

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Embodiment Construction

[0056] Preferred embodiments of the present invention will now be described in detail with reference to the accompanying drawings.

[0057] figure 2 is a block diagram representing a digital image texture analysis device according to an embodiment of the present invention, image 3 It is a flow chart showing the main steps of the digital image texture analysis method according to one embodiment of the present invention. The following will occasionally involve image 3 .

[0058] First, refer to figure 2 , the digital image texture analysis device according to one embodiment of the present invention includes a first average value / variance calculation unit 202 , a filtering unit 204 , a second average value / variance calculation unit 206 and a texture structure descriptor setting unit 208 .

[0059] The operation of the digital image texture analysis device will now be described.

[0060] The first average value / variance calculation unit 202 calculates the average value an...

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Abstract

A digital image texture analyzing method uses (302) the mean ( mu 0) and variance ( sigma 0) of the pixel values of an original image. Further, m x n filtered images are obtained (304) by filtering the original image using predetermined filters, each having a unique combination of one of m scales and one of n orientations, where m and n are predetermined positive integers, and the means ( mu 11, mu 21, ..., mu mn) and variances ( sigma 11, sigma 21,..., sigma mn) of the respective filtered images are calculate (306). A texture descriptor is obtained (308) having the mean ( mu 0) and variance ( sigma 0) of the pixel values of the original image and the means ( mu 11, mu 21, ..., mu mn) and variances ( sigma 11, sigma 21,..., sigma mn) of the respective filtered images obtained in the step (c), as texture features. The texture analyzing method allows image textures to be more accurately analyzed and compared for similarity, even when an image is rotated and / or enlarged or reduced relative to another image.

Description

[0001] This application is a divisional application of the Chinese patent application No. 00128395.2 entitled "Method for Analyzing Texture Structure of Digital Image". technical field [0002] The invention relates to a method for analyzing the texture structure of a digital image, in particular to a method for analyzing the texture structure of a digital image by using a texture structure descriptor. This application claims priority to Provisional Application Serial No. 60 / 157,077, filed October 1, 1999, and entitled "Methods for Analysis of Still Image Texture Structure." Background technique [0003] figure 1 A conventional digital image texture analysis method is shown. refer to figure 1 , obtain a filtered image by performing a predetermined filtering method, and use the average and variance of pixel values ​​of the filtered image as texture descriptors of the image. The texture descriptor represents the analysis result of the image texture. [0004] However, accor...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06T5/20G06T7/40
CPCG06T7/403G06T7/44G06T7/40
Inventor 申铉枓崔良林B·S·曼朱纳斯
Owner SAMSUNG ELECTRONICS CO LTD
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