Image analysis – Applications – Manufacturing or product inspection
Reexamination Certificate
2007-07-03
2007-07-03
Ahmed, Samir (Department: 2624)
Image analysis
Applications
Manufacturing or product inspection
C382S190000
Reexamination Certificate
active
09445304
ABSTRACT:
In a gray level image, the direction and the magnitude of a level gradient are found for each of pixels. With respect to the pixel having a level gradient whose magnitude exceeds a predetermined value, a line segment having a predetermined length is drawn in the direction of the level gradient from the pixel or a position spaced apart from the pixel by a predetermined distance. The luminance level of the line segment corresponds to the magnitude of the level gradient. A portion where a lot of line segments are overlapped with one another or a portion where the line segments are concentrated is detected, to recognize the center, the corners, etc. of an object appearing on the image.
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Ahmed Samir
Omron Corporation
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