FINGERPRINT FEATURE EXTRACTING APPARATUS, FINGERPRINT COLLATING APPARATUS, SKIN PATTERN FEATURE EXTRACTING APPARATUS, SKIN PATTERN COLLATING APPARATUS, AND METHODS FOR EXTRACTING AND COLLATING FINGERPRINT FEATURE

摘要

According to a fingerprint feature extracting apparatus and a fingerprint collating apparatus, and methods for fingerprint feature extraction and fingerprint collation, in addition to extraction of an actually existing minutia (real minutia), a virtual minutia (virtual minutia) is added to an area where no real minutia exists to extract features from both the minutiae, and thereby information on a fingerprint impression area not conventionally used for collation is extracted as a feature amount. Fingerprint pattern collation using the feature amount enables improved collation precision.