摘要:
A biometric information processing device includes, a biometric sensor configured to acquire a plurality of different biometric information elements; an authentication feature extracting unit configured to extract an authentication feature for use in authentication for each of the plurality of different biometric information elements acquired by the biometric sensor; a supplemental feature extracting unit configured to extract a supplemental feature relating to the authentication feature for each of the plurality of different biometric information elements; and a combined feature extracting unit configured to extract a combined feature in which a plurality of the supplemental features extracted by the supplemental feature extracting unit are reflected.
摘要:
A biometric authentication device includes: a matching data generating unit which generates matching data from at least one biometric image representing a plurality of pieces of biometric information of a user; a mutual biometric information feature amount extraction unit which extracts a mutual biometric information feature amount representing the degree of similarity between two pieces of biometric information of the plurality of pieces of biometric information; a selection unit, which, for each of the first predetermined number of the registered users, computes a first selecting score based on the mutual biometric information feature amounts of the user and the registered users and selects the second predetermined number of registered users in order of decreasing the level of similarity based on the first selecting score of each registered users; and a matching unit which matches the matching data of the selected registered users with the matching data of the user.
摘要:
A computer system checks whether or not an authentication success rate for a registered user shows an over-time reduction based on the history of the results of the previous biometric authentication processes in which the high-speed verification process is executed, when the authentication success rate is determined as showing an over-time reduction for the registered user, the computer system instead executes a precise verification process for verifying input biometric information against registered biometric information to make verification with a higher precision than with the high-speed verification process.
摘要:
Provided are an authentication device, an authentication system, and an authentication method, which are capable of increasing an authentication rate while suppressing an increase in a processing load. To solve this problem, the authentication device acquires a periodic temporal variation of an authentication rate, using history information stored in an authentication history storage unit storing a previous authentication result as history information, predicting whether or not a future authentication rate is lower than a previous value, based on the temporal variation of the authentication rate, and updates registration data regarding biometric information which has been registered, using input data regarding biometric information input from a user, when it is predicted that a future authentication rate will be lower than a predetermined value.
摘要:
A fingerprint image acquiring device includes: a fingerprint image input unit to which fingerprint images are input consecutively; an image correlating unit to correlate a plurality of fingerprint images input from the fingerprint image input unit, the image correlating unit matching the input fingerprint images in position; a resolution enhancing determining unit to determine whether an area making resolution enhancing possible is present by detecting an area overlapping between fingerprint images as a result of image correlating and estimating similarity between the fingerprint images; an image synthesizing unit to synthesize the fingerprint images based on a result of the position matching by the image correlating unit; and a resolution enhancing unit to enhance a resolution of the area making resolution enhancing possible in the fingerprint image, wherein a fingerprint image is generated by partially enhancing the fingerprint image input to the fingerprint image input unit in resolution.