Image analysis – Pattern recognition – Template matching
Patent
1996-11-25
1998-10-20
Couso, Jose L.
Image analysis
Pattern recognition
Template matching
382218, 382209, 382125, G06K 968
Patent
active
058259244
ABSTRACT:
The present invention provides an image processing apparatus and method comprising a memory for storing address information of a binary registered image. An original test image is converted into a binary test image so that the ratio of the total number of black pixels to the total number of black and white pixels lies within a predetermined range. The binary test image is aligned to the binary registered image in order to compare the two images. A degree of concordance between the binary test image and the binary registered image is determined if the comparison satisfies a predetermined condition of concordance. A degree of discordance between the binary test image and the binary registered image is determined if the comparison satisfies a predetermined condition of discordance. The binary test image is determined to originate from the same object as the binary registered image according to the degree of concordance and the degree of discordance between the two images.
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Couso Jose L.
Do Anh Hong
Nippon Telegraph and Telephone Corporation
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