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The fingerprint focus classification decisive device, being the fingerprint focus classification decisive device which has the focus classification decisive
The fingerprint focus classification decisive device, being the fingerprint focus classification decisive device which has the focus classification decisive
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机译:指纹焦点分类决定器,是具有焦点分类决定性的指纹焦点分类决定器
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摘要
PROBLEM TO BE SOLVED: To quickly determine the classification of a feature point in a fingerprint image.;SOLUTION: A fingerprint feature point classification determination part 3 includes: a rectangular area setting means for setting a rectangular area A configured of a long side in parallel with a feature point direction preset to a feature point in a fingerprint image and a short side in contact with the feature point and a rectangular area B where the rectangular area A is subjected to object movement to an orthogonal segment passing through the feature point, and intersecting perpendicularly with the feature point direction; an in-rectangle mean density calculation means for calculating in-rectangle mean density values (a) and b as mean density values in the respective rectangular areas A and B; and a feature point classification determination means for determining whether the classification of each feature point is a branch point or end point by comparing the sizes of the in-rectangle mean density value (a) and the in-rectangle mean density value b for determination.;COPYRIGHT: (C)2012,JPO&INPIT
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