Abstract: A biometric authentication apparatus includes: a biometric sensor configured to capture an image of a hand of a user; a touch panel configured to output a contact signal indicating contact positions of fingers of the user in response to the reception of an operation by the fingers of the user; and control circuitry configured to display, on the touch panel, a plurality of marks each of which indicates position at which any of the fingers of the user is intended to come into contact with the touch panel, acquire the contact signal output from the touch panel, and reduce in size one or more marks among the plurality of marks during acquiring biometric information from the image captured by the biometric sensor when the control circuitry detects, in accordance with the contact signal, that the fingers of the user are in contact with the plurality of marks.

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 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 processor obtains characteristics information of a biometric image captured while casting first or second illumination light onto an authentication target. The first illumination light includes light of a first wavelength, and the second illumination light includes light of the first wavelength and light of a second wavelength. The processor reads characteristics information of a biometric image captured while casting illumination light cast onto the authentication target from a memory that stores first characteristics information of a first biometric image and second characteristics information of a second biometric image. The first biometric image is captured while casting the first illumination light onto a registration target, and the second biometric image is captured while casting the second illumination light onto the registration target.

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 vein authentication device converts pixel values of an image, which captures an authentication site including veins, into frequency components. Moreover, the vein authentication device performs filtering of the frequency components, which are obtained by conversion of the pixel values, using a filter stored in a filter storing unit for reducing frequency components, from among low-frequency components having a lower spatial frequency than the spatial frequency of the veins and high-frequency components having a higher spatial frequency than the spatial frequency of the veins, corresponding to surface reflection of an illumination used for the authentication site. Furthermore, the vein authentication device converts the frequency components, which are subjected to filtering, back into an image. Moreover, the vein authentication device extracts vein data representing a vascular pattern of veins from the image obtained by reverse conversion.

Abstract: A device includes an illumination device that casts light of a prescribed polarization direction on a scattering body, a camera that picks up images of the scattering body at a plurality of different polarization angles, and a processor that executes a process of generating and outputting an inner layer image, of an inner layer of an inside of the scattering body, in response to a depth from a surface of the scattering body on the basis of the images of the scattering body picked up at the plurality of different polarization angles.

Abstract: A biometric image processing apparatus includes an imaging device that captures a first image of a biometric part that is irradiated with light having a first wavelength, and a second image of the biometric part irradiated with light having a second wavelength shorter than the first wavelength, and a computing device that computes a third image by subtracting from the first image an image in which a luminance of the second image is attenuated.

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 image correction apparatus includes a correction amount calculating unit which calculates, in response to a position of a hand on an image, a correction amount for placing the hand to face an imaging unit included in an image acquiring unit for generating the image; and a correcting unit which corrects an estimated coordinate representing a position of a point in a real space corresponding to each pixel included in a region in which the hand is captured in the image in accordance with the correction amount, and projects each of the points after the correction on a corrected image to generate the corrected image.

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: An image correction apparatus includes a correction amount calculating unit which calculates, in response to a position of a hand on an image, a correction amount for placing the hand to face an imaging unit included in an image acquiring unit for generating the image; and a correcting unit which corrects an estimated coordinate representing a position of a point in a real space corresponding to each pixel included in a region in which the hand is captured in the image in accordance with the correction amount, and projects each of the points after the correction on a corrected image to generate the corrected image.

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 terminal includes acquiring an image of a first subject that is captured by a first sensor provided on a back surface of a surface on which a screen of the information terminal is disposed, and when displaying the image on the screen, changing a degree of scaling up/down of the image and a position at which the image is displayed in accordance with a position of a second subject that is imaged by a second sensor provided to the information terminal.

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.