| 摘要 |
This biometric authentication device is provided with a filter (41) that extracts a plurality of directional characteristics from an inputted image, a per-direction directional-characteristic canonicalization unit (42) that canonicalizes each of the directional characteristics extracted by the filter (41), a nondirectional-characteristic generation unit (43 through 45) that generates a nondirectional characteristic from the directional characteristics outputted by the per-direction directional-characteristic canonicalization unit (42), a matching unit that obtains the degree of similarity between said nondirectional characteristic and an enrolled nondirectional characteristic stored in a storage unit, and a determination unit that uses said degree of similarity to determine whether or not a person is a match. |
