US Patent 7263241 Region based illumination-normalization method and system
Patent 7263241 was granted and assigned to Industrial Technology Research Institute on August, 2007 by the United States Patent and Trademark Office.
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Patent Inventor Names
Chingchun Huang0
Yao-Hong Tsai0
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Patent abstract
A region-based illumination-normalization method and system utilizes a plurality of filters to filter a test image for obtaining a high frequency image and a low pass image. The low pass image is segmented into several regions by an image segmentation unit so that a region-based adjustment unit normalizes the regions based on an illumination reference model, respectively. Finally, an image combination unit is employed to combine the high frequency image and the low pass image that is normalized.
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US Patent 07263241 Region based illumination-normalization method and system US Patent 7263241 Region based illumination-normalization method and system
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Patent Number
072632410
Patent Number
72632410
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Patent Jurisdiction
Patent Number
072632410
Date of Patent
August 28, 2007
0Patent Application Number
107428440
Date Filed
December 23, 2003
0Official Website
Patent Primary Examiner
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US Patent 07263241 Region based illumination-normalization method and system
Infobox
Is a
Current assignee
Patent jurisdiction
Patent number
07263241
Date of patent
August 28, 2007
Patent application number
10742844
Date Filed
December 23, 2003
Patent primary examiner
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