Two-dimensional scatter plot technique for defect inspection

Image analysis – Applications – Manufacturing or product inspection

Reexamination Certificate

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Details

C382S151000, C382S169000

Reexamination Certificate

active

06912304

ABSTRACT:
A method and associated apparatus for relating a test image with a reference image in an automated image processing system is disclosed. The test and reference images are aligned. A two-dimensional scatter plot is then created by plotting the gray level of a test image pixel against the gray level of a corresponding reference image pixel for each aligned pixel location.

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