Abstract: A biometric image processing device includes: a memory; and a processor coupled to the memory and the processor configured to execute a process, the process comprising: capturing a biometric image of an object by a camera; obtaining a histogram of brightness values from the biometric image; correcting the biometric image by expanding a dynamic range of a partial histogram of the histogram of which an appearance frequency is equal to or more than a threshold; and calculating a distance between the camera and the object on a basis of a high frequency component of the biometric image corrected in the correcting.

Abstract: A biometric authentication apparatus acquires biometric information of a user, extracts a boundary candidate where a state of the biometric information changes, to extract a region in a vicinity of the boundary candidate and having a threshold area or greater, extracts a state feature quantity having a value that changes according to a change in the state of the biometric information, from the extracted region, and judges the state of the biometric information using the state feature quantity of the extracted region.

Abstract: A disclosed illumination apparatus includes first and second light sources that generate light for an illumination area to be illuminated; a first substrate on which the first and second light sources are mounted; and a second substrate that is disposed in an illumination direction of the light of the first and second light sources with respect to the first substrate, the second substrate having first and second diffraction grating elements formed integrally therewith, the first diffraction grating element being provided for the first light source, and the second diffraction grating element being provided for the second light source.

Abstract: A camera captures an image of a subject, and a light source illuminates with light a plane intersecting an optical axis of the camera at a prescribed angle. The processor generates guidance information related to a distance between the subject and the light source on the basis of a pixel value distribution of the image of the subject which is illuminated with the light, and outputs the generated guidance information.

Abstract: A biometric image processing apparatus including a memory and a processor coupled to the memory. The processor obtains a Y value, a U value and a V value in a YUV space from each pixel of an image, determines, for each pixel, whether or not the U value and the V value are in a range that is in accordance with the Y value, and extracts a pixel having been determined to be in the range.

Abstract: A biometric authentication device includes: a storage unit to store a first enrolled template and first information including a parameter representing an input environment of the first enrolled template; a receiving unit to receive biometric information from the terminal device, a second enrolled template stored in the terminal device, and second information including a parameter representing an input environment of the second enrolled template; an authentication unit to perform authentication by matching the received biometric information and the first enrolled template; a selecting unit to select the first enrolled template or the second enrolled template, based on the first and second information, when the biometric information is accepted; and an updating unit to update the first enrolled template stored in the storage unit to the second enrolled template when the second enrolled template is selected.

Abstract: A biometric capture device includes: a first light source configured to emit a light of a first wavelength to a biometric body; a second light source configured to emit a light of a second wavelength different from the first wavelength to the biometric body; a camera configured to capture a reflected light from the biometric body; a memory; and a processor coupled to the memory and the processor configured to execute a process, the process including: acquiring a biometric image based on a component of the first wavelength from an image captured by the camera; acquiring distance information between the biometric body and the camera based on a component of the second wavelength from the image captured by the camera; and correcting the biometric image based on the distance information.

Abstract: An illumination apparatus is disclosed, which includes a light source configured to generate light for an illumination area to be illuminated, and a diffraction grating element provided between the illumination area and the light source, and including a plurality of diffraction gratings arranged in a two dimensional array. A distribution of grating intervals of the diffraction gratings in the diffraction grating element has a characteristic such that a center region, along a predetermined line in a plane of the two dimensional array, has a greater grating interval than an end region.

Abstract: A biometric information process device includes: an image device configured to capture an image of an object; a memory; and a processor coupled to the memory and the processor configured to execute a process, the process comprising: detecting a touch point of the object with respect to a touch panel; extracting a biometric feature from the image of the object that is acquired by the image device; and correcting biometric information acquired from the image of the object based on a movement amount of the object on the touch panel and a movement amount of the biometric feature in the image of the object when the touch point detected in the detecting moves.

Abstract: A biometric authentication device includes: a memory; and a processor coupled to the memory and the processor configured to execute a process, the process comprising: extracting a finger crotch from a palm image for comparison; extracting a finger root wrinkle from the palm image for comparison; adjusting at least one of a position of a biometric feature for comparison of the palm image for comparison and a position of an enrollment biometric feature of an enrolled palm image, based on position information of the finger crotch extracted in the extracting of the finger crotch and position information of the wrinkle extracted in the extracting of the finger root wrinkle; and comparing the biometric feature for comparison and the enrollment biometric feature after the adjusting.

Abstract: An information processing apparatus includes a touch panel; a camera; and a processor coupled to the touch panel and the camera and configured to: display first guide information on the touch panel, display second guide information at a location different from a location of the first guide information on the touch panel when an operation to the first guide information is detected, acquire a plurality of images of a first palm photographed during a period from when a finger touching to the first guide information has been detected to when a finger touching to the second guide information has been detected, and extract a first authentication image for use in authentication of a user from the plurality of images of the first palm.

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 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.

Abstract: A method includes acquiring, from a touch panel, a contact position of a manipulating body and contact information that indicates a degree to which the manipulating body is in contact at the contact position, acquiring, from a camera, a plurality of images captured while the manipulating body is in contact with a plurality of mutually different positions on the touch panel due to manipulations with the manipulating body, creating variation information that indicates a variation in contact information, according to a plurality of contact information corresponding to the plurality of contact positions, and deciding, according to the variation information, suitability of the plurality of images in the biometric authentication to be executed using the plurality of images.

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 imaging device includes a processor that outputs an instruction of an operation position on an input device, in response to detection of a first input to the input device, and a camera that captures a biometric image after the detection of the first input.

Abstract: A terminal apparatus includes an information input device that detects a coordinate value of an input operation position touched by a user, a biometric sensor that captures a capture area of a palm of the user at a time of an input operation to the information input device, to generate biometric data, and a processor. The processor performs a process including matching the biometric data to a corresponding portion of registered biometric data registered in advance and read based on the coordinate value, to compute a similarity of the biometric data to the corresponding portion.

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: An illumination apparatus is disclosed, which includes a light source configured to generate light for an illumination area to be illuminated, and a diffraction grating element provided between the illumination area and the light source, and including a plurality of diffraction gratings arranged in a two dimensional array. A distribution of grating intervals of the diffraction gratings in the diffraction grating element has a characteristic such that a center region, along a predetermined line in a plane of the two dimensional array, has a greater grating interval than an end region.

Abstract: A biometric information reading device includes an image capturing unit that sequentially captures a plurality of partial images about biometric information, an image feature extracting unit that extracts an image feature from each of the partial images and a position of the image feature, a matching relative position detecting unit that determines whether a relative distance between two successive partial images among the partial images is equal to or smaller than a threshold value, based on the image feature of an overlapping region between the two successive partial images, and a partial image output determining unit that determines to output at least two successive partial images as one set, determines not to output a partial image that is input after the partial images as the one set when the matching relative position detecting unit determines that a relative distance of the partial image from one of the partial images as the one set is equal to or smaller than the threshold value, and determines to out