Abstract: An illumination device includes M light sources provided on a surface of a substrate, a diffraction optical element configured to diffract light from the M light sources to irradiate N illuminating areas into which an illuminating region is segmented, and a control unit. The control unit turns on L=M/N light sources of each of first through Nth light source groups during first through Nth time intervals, respectively, and successively irradiates the light from the on L light sources of the first through Nth light source groups in time division onto first through N illuminating areas forming the illuminating region, where M and N are natural numbers greater than or equal to 2, and L is a natural number greater than or equal to 1.

Abstract: A biometric data detection device includes a biometric authentication sensor electrically connected to a data processing terminal through a connecting member, a housing that houses the biometric authentication sensor, a window portion that acquires biometric data to be authenticated by the biometric authentication sensor and that is formed in the housing, and an attachment member that is rotatably provided at the housing and that renders the housing rotatable in a state in which the housing is attached to the data processing terminal.

Abstract: An illumination device includes a light source provided on a surface of a substrate and configured to emit light, and a diffraction optical element having a plurality of diffraction gratings with different pitch and rotating direction, and configured to diffract the light into illumination light that illuminates an illumination region of an illuminating target. The illuminating region is larger than an area occupied by the diffraction optical element and the light source provided on the surface of the substrate.

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.

Abstract: A biometric authentication device, inputs biometric information such as a fingerprint, extracts feature information included in the biometric information, calculates the degree of reliability of the biometric information on the basis of the feature information, obtains a classification of the biometric information on the basis of the feature information, calculates the degree of reliability of the obtained classification, determines whether or not to execute an identification process between the input biometric information and biometric information enrolled in a storage unit on the basis of the degree of reliability of the biometric information and of classification, further determines whether or not a re-input process of the biometric information is needed, executes an identification process for the biometric information when it is determined that the identification process is needed, and issues a re-input instruction for the biometric information when it is determined that the re-input process is needed.

Abstract: A biometric authentication device includes a processor to execute an operation including: obtaining biometric information from a user; creating verification characteristic data from the biometric information; verifying registered characteristic data registered in a storage device with the verification characteristic data and determining whether the user is a true user; permitting execution of re-authentications up to a predetermined number of times when the user is determined to not be the true user; managing the verification characteristic data by storing the verification characteristic data in an existing group or by creating a new group and storing the verification characteristic data therein, when the user is determined to not be the true user; determining whether the user is a false user based on the number of groups; and limiting the execution of re-authentications by the user when the user is determined to be the false user.

Abstract: A biometric authentication device including: a biometric information acquiring unit which generates a plurality of partial images, each of the partial images capturing a portion of biometric information of a user different from each other; a correlation value calculation unit which calculates the correlation value between a portion of biometric information represented on one partial image and registered biometric information; a partial similarity update unit which, based on the correlation value for the one partial image and the correlation value for at least one other partial image acquired before the one partial image, updates partial similarity representing the degree of similarity between the registered biometric information and portions of biometric information represented on the one partial image and the at least one other partial image; an authentication unit which authenticates, when the partial similarity is equal to or higher than an authentication judging threshold, the user as the registered user.

Abstract: A client terminal acquires an image that includes at least a part of a fingerprint, and detects an orientation of a ridge that forms the fingerprint from the image, and detects a singular point of the fingerprint from the image, and calculates an angle formed, on a circumference of a reference circle whose center is the singular point, by the orientation of the ridge and the direction of a tangent line that comes into contact with the reference circle, and creates narrow down data that is used to narrow down matching data that is used to match the fingerprint by associating the angle with a position on the circumference of the reference circle.

Abstract: A biometric authentication device includes a storage unit that stores a plurality of pieces of reference biometric data, an identification control unit that extracts reference biometric data where a coefficient for determining a similarity to acquired biometric data is greater than or equal to a first threshold value, a similar region extraction unit that obtains coefficients for determining similarities between the plural pieces of extracted reference biometric data, in units of predetermined regions, and extracts a similar region where the coefficient for similarity determination is greater than or equal to a second threshold value when a plurality of pieces of reference biometric data are extracted by the identification control unit, and a judgment unit that weights a coefficient for determining a similarity to a dissimilar region, compared with the coefficient for determining a similarity to the extracted similar region, and judging the degree of similarity.

Abstract: A capacitive sensor includes a plurality of electrodes each of which outputs an electrical signal corresponding to a capacitance determined by a distance between a surface of the capacitive sensor and an electrical conductor. The plurality of electrodes include electrodes having a first parasitic capacitance and electrodes having a second parasitic capacitance different from the first parasitic capacitance, and are arranged in a prescribed pattern different than a pattern of biometric information of a body part to be read by the capacitive sensor.

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.

Abstract: A biometric authentication system (1) records, in a storage unit in an associating manner, position information of a feature area on an image of biometric information whose biometric authentication is successful and reference biometric information referred to in the successful biometric authentication, the feature area being specific to a living-body, and detects a feature area that is specific to a living-body from an image of biometric information of an input object to be authenticated, and narrows down the reference biometric information stored in the storage unit to reference biometric information to be compared with the biometric information of the object to be authenticated, based on the degree of similarity between each position information, and authenticates the biometric information of the object to be authenticated by comparing the reference biometric information obtained as a narrowing-down result and the biometric information of the object to be authenticated.

Abstract: A biometric authentication device, inputs biometric information such as a fingerprint, extracts feature information included in the biometric information, calculates the degree of reliability of the biometric information on the basis of the feature information, obtains a classification of the biometric information on the basis of the feature information, calculates the degree of reliability of the obtained classification, determines whether or not to execute an identification process between the input biometric information and biometric information enrolled in a storage unit on the basis of the degree of reliability of the biometric information and of classification, further determines whether or not a re-input process of the biometric information is needed, executes an identification process for the biometric information when it is determined that the identification process is needed, and issues a re-input instruction for the biometric information when it is determined that the re-input process is needed.

Abstract: A biometric authentication device including: a biometric information acquiring unit which generates a plurality of partial images, each of the partial images capturing a portion of biometric information of a user different from each other; a correlation value calculation unit which calculates the correlation value between a portion of biometric information represented on one partial image and registered biometric information; a partial similarity update unit which, based on the correlation value for the one partial image and the correlation value for at least one other partial image acquired before the one partial image, updates partial similarity representing the degree of similarity between the registered biometric information and portions of biometric information represented on the one partial image and the at least one other partial image; an authentication unit which authenticates, when the partial similarity is equal to or higher than an authentication judging threshold, the user as the registered user.

Abstract: A biometric authentication device including: a biometric information acquiring unit which generates a biometric input image representing user's biometric input information; and a processing unit.

Abstract: A biometric authentication device includes a processor to execute an operation including: obtaining biometric information from a user; creating verification characteristic data from the biometric information; verifying registered characteristic data registered in a storage device with the verification characteristic data and determining whether the user is a true user; permitting execution of re-authentications up to a predetermined number of times when the user is determined to not be the true user; managing the verification characteristic data by storing the verification characteristic data in an existing group or by creating a new group and storing the verification characteristic data therein, when the user is determined to not be the true user; determining whether the user is a false user based on the number of groups; and limiting the execution of re-authentications by the user when the user is determined to be the false user.

Abstract: A biometric information processing apparatus includes: a biometric information acquiring unit which acquires a user's biometric information and generates a biometric input image representing the biometric information; and a processing unit.

Abstract: An image reading apparatus includes a fingerprint sensor that acquires a plurality of first images obtained by successively reading the portions of a relatively moving object, an extrapolation section that extrapolates the plurality of first images to generate a plurality of second images obtained by extending the image area of the first image, and a relative position detection section that calculates the relative position between the plurality of images or the plurality of second images based on a plurality of images including at least the plurality of first images or the plurality of second images.

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.

Abstract: A biometric information processing apparatus, a method for processing biometric information, and a biometric information processing program are provided for analyzing biometric information that is obtained by combining and reconstructing two or more captured partial biometric images, and a mismatching region is extracted from the combined biometric image. Then, a mismatching region is excluded from the biometric image, and a proper region suitable for identification is extracted. Accordingly, false rejection or the like may be avoided. Moreover, the reliability of biometric identification may be improved, and the number of times of asking a user to reinput his/her biometric information may be reduced. Hence, the convenience is enhanced.