| 摘要 |
PROBLEM TO BE SOLVED: To provide a fingerprint image processor capable of extracting a fingerprint image to be a collation object with high accuracy.SOLUTION: The fingerprint image processor includes a feature amount vector calculation part. The feature amount vector calculation part calculates a first feature amount vector having a plurality of first feature amounts as elements, which are related to feature point directions respectively belonging to a plurality of feature points in a fingerprint image of a retrieval object and are calculated from a rotation direction of a feature point direction to a reference point in the fingerprint image, and a second feature amount vector having a plurality of second feature amounts as elements, which are related to the feature point directions and are calculated from the direction of the feature point direction to the reference point. |
