Computer identification of textured visual scenes

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Dept. of Computer Science, 1973 - Computer vision - 314 pages
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The work deals with computer analysis of textured outdoor scenes involving grass, trees, water and clouds. Descriptions of texture are formalized from natural language descriptions; local descriptors are obtained from the directional and nondirectional components of the Fourier transform power spectrum. Analytic expressions are obtained for orientation, contrast, size, spacing, and in periodic cases, the locations of the choice of sizes is made by a simple higher-level program. The process of region growing is represented by a sheaf-theoretical model which formalizes the operation of pasting local structure (over a window) into global structure (over a region). Programs were implemented which form regions of similar color and similar texture with respect to the local descriptors. (Author Modified Abstract).

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Contents

TEXTURE DESCRIPTION
23
PROCEDURES FOR TEXTURE DESCRIPTORS
36
k COLORED AND TEXTURED REGIONS
86

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