Identification apparatus, identification method, and program
First Claim
1. An identification apparatus comprising a processor executing a process that causes the identification apparatus to perform:
- determining two or more classes into which input biometric data is classified out of a plurality of classes based on features of the input biometric data, where a plurality of items of registered biometric data have been classified into at least one of the plurality of classes;
calculating similarity between the input biometric data and each item of the registered biometric data registered in each of the determined two or more classes into which the input biometric data is classified; and
identifying data on a user who has entered the input biometric data among the registered biometric data registered in any of the determined two or more classes, based on the similarity to the input biometric data; and
setting a threshold for each of the determined two or more classes in order to identify data on the user who has entered the input biometric data, whereineach of the classes is set in advance,when, among the registered biometric data registered in each of the determined two or more classes, there is at least one biometric data item whose similarity to the input biometric data exceeds the threshold set for each of the determined two or more classes, the identifying identifies that the input biometric data and the registered biometric data item belong to the same user.
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Abstract
An identification apparatus includes a classification unit that determines two or more classes into which input biometric data is classified out of a plurality of classes based on features of the input biometric data, where a plurality of items of registered biometric data have been classified into at least one of the plurality of classes, a calculation unit that calculates similarity between the input biometric data and each item of the registered biometric data registered in each of the two or more classes into which the input biometric data is classified, and an identification unit that identifies data on a user who has entered the input biometric data among the registered biometric data registered in any of the two or more classes into which the input biometric data is classified, based on the similarity to the input biometric data.
23 Citations
7 Claims
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1. An identification apparatus comprising a processor executing a process that causes the identification apparatus to perform:
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determining two or more classes into which input biometric data is classified out of a plurality of classes based on features of the input biometric data, where a plurality of items of registered biometric data have been classified into at least one of the plurality of classes; calculating similarity between the input biometric data and each item of the registered biometric data registered in each of the determined two or more classes into which the input biometric data is classified; and identifying data on a user who has entered the input biometric data among the registered biometric data registered in any of the determined two or more classes, based on the similarity to the input biometric data; and setting a threshold for each of the determined two or more classes in order to identify data on the user who has entered the input biometric data, wherein each of the classes is set in advance, when, among the registered biometric data registered in each of the determined two or more classes, there is at least one biometric data item whose similarity to the input biometric data exceeds the threshold set for each of the determined two or more classes, the identifying identifies that the input biometric data and the registered biometric data item belong to the same user. - View Dependent Claims (2, 3, 4, 5)
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6. An identification method executed by a computer, comprising:
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determining two or more classes into which input biometric data is classified out of a plurality of classes based on features of the input biometric data, where a plurality of items of registered biometric data have been classified into at least one of the plurality of classes; calculating similarity between the input biometric data and each item of the registered biometric data registered in each of the determined two or more classes into which the input biometric data is classified; and identifying data on a user who has entered the input biometric data among the registered biometric data registered in any of the determined two or more classes, based on the similarity to the input biometric data; and setting a threshold for each of the determined two or more classes in order to identify data on the user who has entered the input biometric data, wherein each of the classes is set in advance, when, among the registered biometric data registered in each of the determined two or more classes, there is at least one biometric data item whose similarity to the input biometric data exceeds the threshold set for each of the determined two or more classes, the identifying identifies that the input biometric data and the registered biometric data item belong to the same user.
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7. A non-transitory computer-readable recording medium recording thereon a program executed by a computer, the program comprising:
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determining two or more classes into which input biometric data is classified out of a plurality of classes based on features of the input biometric data, where a plurality of items of registered biometric data have been classified into at least one of the plurality of classes; calculating similarity between the input biometric data and each item of the registered biometric data registered in each of the determined two or more classes into which the input biometric data is classified; and identifying data on a user who has entered the input biometric data among the registered biometric data registered in any of the determined two or more classes, based on the similarity to the input biometric data; and setting a threshold for each of the determined two or more classes in order to identify data on the user who has entered the input biometric data, wherein each of the classes is set in advance, when, among the registered biometric data registered in each of the determined two or more classes, there is at least one biometric data item whose similarity to the input biometric data exceeds the threshold set for each of the determined two or more classes, the identifying identifies that the input biometric data and the registered biometric data item belong to the same user.
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Specification