| 摘要 |
A biometric authentication device includes: a biometric information acquiring unit which acquires a user's biometric information and generates a biometric image representing the biometric information; a storage unit which stores data concerning registered biometric information of at least one registered user; and a processing unit. The processing unit detects from the biometric image a moderately blurred region having a first degree of blurring and a highly blurred region having a second degree of blurring which is higher than the first degree of blurring, identifies the cause of the occurrence of the highly blurred region and the moderately blurred region, and presents to the user a warning message corresponding to the cause of the occurrence of the blurred regions. |
