Biometric information processing apparatus, biometric information processing method, and biometric information processing computer program
First Claim
1. A biometric information processing apparatus comprising:
- a biometric information acquiring unit which acquires biometric input data representing a user'"'"'s biometric information; and
a processing unit, wherein the processing unit implements;
a feature quantity extracting function which extracts a feature quantity characterizing a feature of the biometric information from the biometric input information represented by the biometric input data;
a classifying function which classifies, based on the feature quantity, the biometric input information represented by the biometric input data into at least one of a plurality of classes categorized according to common features of biometric information, and which computes a confidence level for each class into which the biometric input information has been classified;
a classification result judging function which judges whether or not a maximum value of the confidence level is larger than a threshold value predefined for the class corresponding to the maximum value among the plurality of classes; and
a guidance function which, if the maximum value is not larger than the threshold value, prompts the user to have the user'"'"'s biometric information reacquired by the biometric information acquiring unit.
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Abstract
A biometric information processing apparatus includes: a biometric information acquiring unit which acquires biometric input data representing a user'"'"'s biometric input information; and a processing unit. The processing unit executes: extracting a feature quantity characterizing a feature of the biometric information from the biometric input information; classifying, based on the extracted feature quantity, the biometric input information into at least one of a plurality of classes categorized according to common features of biometric information, computing a confidence level for each class into which the biometric input information has been classified; judging whether or not a maximum value of the confidence level is larger than a threshold value predefined for the class corresponding to the maximum value among the plurality of classes; and, if the maximum value is not larger than the threshold value, prompting the user to have the user'"'"'s biometric information reacquired.
19 Citations
8 Claims
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1. A biometric information processing apparatus comprising:
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a biometric information acquiring unit which acquires biometric input data representing a user'"'"'s biometric information; and a processing unit, wherein the processing unit implements; a feature quantity extracting function which extracts a feature quantity characterizing a feature of the biometric information from the biometric input information represented by the biometric input data; a classifying function which classifies, based on the feature quantity, the biometric input information represented by the biometric input data into at least one of a plurality of classes categorized according to common features of biometric information, and which computes a confidence level for each class into which the biometric input information has been classified; a classification result judging function which judges whether or not a maximum value of the confidence level is larger than a threshold value predefined for the class corresponding to the maximum value among the plurality of classes; and a guidance function which, if the maximum value is not larger than the threshold value, prompts the user to have the user'"'"'s biometric information reacquired by the biometric information acquiring unit. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A biometric information processing method comprising:
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acquiring biometric input data representing a user'"'"'s biometric information; extracting a feature quantity characterizing a feature of the biometric information from the biometric input information represented by the biometric input data; classifying, based on the feature quantity, the biometric input information represented by the biometric input data into at least one of a plurality of classes categorized according to common features of biometric information, and computing a confidence level for the class into which the biometric input information has been classified; judging whether or not a maximum value of the confidence level is larger than a threshold value predefined for the class corresponding to the maximum value among the plurality of classes; and if the maximum value is not larger than the threshold value, then prompting the user to have the user'"'"'s biometric information reacquired by a biometric information acquiring unit.
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8. A non-transitory computer-readable recording medium in which a computer program for a biometric information processing is recorded, the computer program for causing a computer to execute:
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extracting, from a user'"'"'s biometric information represented by biometric input data acquired by a biometric information acquiring unit, a feature quantity characterizing a feature of the biometric information; classifying, based on the feature quantity, the biometric input information represented by the biometric input data into at least one of a plurality of classes categorized according to common features of biometric information, and computing a confidence level for the class into which the biometric input information has been classified; judging whether or not a maximum value of the confidence level is larger than a threshold value predefined for the class corresponding to the maximum value among the plurality of classes; and if the maximum value is not larger than the threshold value, then prompting the user to have the user'"'"'s biometric information reacquired by the biometric information acquiring unit.
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Specification