Image analysis – Applications – Manufacturing or product inspection
Reexamination Certificate
2006-04-18
2006-04-18
Johns, Andrew W. (Department: 2621)
Image analysis
Applications
Manufacturing or product inspection
C382S164000
Reexamination Certificate
active
07031510
ABSTRACT:
A color image of a circuit board is divided into respective color regions. Plural representative colors are set, and angle indices and distance indices are calculated for each pixel color in the color image in a predetermined color space. The angle indices for a particular pixel color represent angles between an individual color vector representing the particular pixel color and plural representative color vectors of the plural representative colors. The distance indices for a particular pixel color represent distances between the particular pixel color and the plural representative colors. Composite distance indices are then calculated for each pixel color in the color image, based on the distance indices and the angle indices. Each pixel in the color image is classified into plural representative color regions associated with the plural representative colors according to the composite distance indices, thereby dividing the image region of the color image into the plural representative color regions.
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Imamura Atsushi
Sano Hiroshi
Shiomi Junichi
Alavi Amir
Dainippon Screen Mfg. Co,. Ltd.
Johns Andrew W.
McDermott Will & Emery LLP
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