Controlling inspection of printed material based on reference image and scan image with alignment performed based on the number of feature points in the reference image

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United States of America

PATENT NO 12256046
APP PUB NO 20230142237A1
SERIAL NO

18053542

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Abstract

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An inspection system extracts feature points from a scan image and from a reference image, performs alignment of the scan image and the reference image based on the extracted feature points, inspects a printed material using the aligned scan and reference images, and performs processing in accordance with a method selected from among a plurality of methods including at least a first method and a second method in a case where the number of the feature points in the reference image is less than a predetermined number. The processing is performed such that, in the case where the number of the feature points in the reference image is less than the predetermined number, the alignment using at least the extracted feature points is performed when the first method is selected, and the inspection is then carried out, whereas the inspection is not carried out when the second method is selected.

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Patent Owner(s)

  • CANON KABUSHIKI KAISHA

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Haruta, Kenichirou Chiba, JP 22 58

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