05325301 is referenced by 7 patents and cites 9 patents.

The present invention relates broadly to a method of image analysis for analyzing the texture of a surface, and to a saxony-type carpet having a tightly tailored surface texture characterized by this method. The method employs a model based on a second order co-occurrence matrix model which calculates a set of textural parameters for image classification. This co-occurrence matrix model examines the statistics of the spatial relationship between gray levels in a homogeneously textured image with calculated textural features which represent measures such as homogeneity and contrast. The method of the present invention uses this model to construct a set of normalized textural parameters from the textural parameters and calculates a value for the normalized textural parameters from this set, where the normalized textural parameters are related to the physical properties of the surface, such as pile lay of a carpet. The method compares the value for each of the normalized textural parameters of an unknown sample to the value for each of the corresponding normalized textural parameters for a known, or goal, sample. In one embodiment, the method compares an unknown sample of a saxony-type carpet to a goal sample of a saxony-type carpet having a tightly tailored surface texture to determine whether the unknown sample is such a carpet.

Title
Method of analyzing the texture of a surface and a carpet characterized by the method
Application Number
733353
Publication Number
5325301
Application Date
March 27, 1992
Publication Date
June 28, 1994
Inventor
Theresa A Weston
Wilmington
DE, US
James E Van Trump
Wilmington
DE, US
Akhileswar G Vaidyanathan
Hockessin
DE, US
Barry Rubin
Glen Mills
PA, US
Michael J Merrill
New Castle
DE, US
Warren F Knoff
Richmond
VA, US
Agent
Jane E Obee
Assignee
E I Du Pont de Nemours and Company
DE, US
IPC
G06F 15/20
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