Fujitsu Corporation

Fujitsu Limtited

Hajime Nada

Yukihiro Abiko

Soichi Hama

Satoshi Maeda

Satoshi Semba

Takahiro Aoki

Shigefumi Yamada

Takashi Shinzaki

Toshio Endoh

Rie Hasada

Toshiaki Wakama

Takashi Morihara

Kazuya Uno

Shinji Egashira

A biometric-image processing apparatus includes a touch panel, a memory, an image-capturing device configured to capture an image of a living body that is in contact with the touch panel to obtain a biometric image, and a processor coupled to the memory. The processor is configured to execute a process including: calculating a distance between the image-capturing device and the living body, and calculating a rotation angle of the living body to the image-capturing device based on the distance.

Apparatus, method, and program for biometric image processing

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.

Image capturing apparatus and biometric authentication apparatus to output guidance related to distance

A biometric image processing apparatus includes a touch panel, an biometric sensor configured to capture an image of a living body, and a processor. The processor performs a process including first calculating an amount of movement of the living body that moves on the touch panel while coming into contact with the touch panel, second calculating an amount of movement of each region in images captured by the biometric sensor in a period in which the living body moves on the touch panel while coming into contact with the touch panel, and detecting image noise in the captured images based on the respective amounts of movement calculated by the first calculating and the second calculating.

Biometric image processing apparatus, biometric image processing method, and biometric image processing program

A biometric authentication apparatus includes an imaging device, a display device, a memory, and a processor configured to display, on a screen of the display device, a guidance indicating a target area to be in contact with a part of a human body, detect whether the part of the human body is in contact with the target area, when the part of the human body is in contact with the target area, determine a distance between the imaging device and another part of the human body in accordance with an image captured by the imaging device, the image including the other part of the human body, and perform a change of a display position of the guidance in accordance with the determined distance.

Biometric authentication apparatus and biometric authentication method

An image processing apparatus includes a memory and a processor configured to acquire an image in which a subject is captured by a camera, calculate a plurality of spatial frequency characteristics on the basis of each of a plurality of regions included in the image, and perform determination of a tilt of the subject with respect to the camera in accordance with the plurality of spatial frequency characteristics.

Image processing apparatus and image processing method

A computer-implemented method for image processing, the method includes: acquiring an image of a body part captured by an imaging circuit; and determining, in a case where there is a region where luminance is saturated in the acquired image, a cause of the saturation of the luminance based on a distribution of the luminance in the acquired image. The cause is either the distance between the imaging circuit and the body part being shorter than a predetermined distance or an influence of external light.

Image processing apparatus, image processing method, and image processing program

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.

Illumination apparatus

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. The processor calculates a similarity between the obtained characteristics information and the characteristics information read from the memory, and conducts authentication.

Biometric authentication apparatus, biometric authentication system and biometric authentication method

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.

Biometric image processing device, biometric image processing method and computer-readable non-transitory medium

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.

Biometric authentication apparatus, biometric authentication method, and non-transitory computer-readable storage medium for storing program for biometric authentication

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.

Biometric authentication system and method

A method performed by a computer for biometric authentication includes: obtaining, by a processor of the computer, a first image group including a plurality of images that are sequentially captured by a biometric sensor configured to capture at least a part of a region of a body of a user; obtaining, by the processor of the computer, a movement amount of the body and a distance between the body and the biometric sensor; and selecting, by the processor of the computer, a second image group from the first image group in accordance with the movement amount and the distance, the second image group including images to be used in authentication processing with respect to the body, wherein the size of a common region between images to be included in the second image group is adjusted according to the distance.

Device, method, and non-transitory computer-readable storage medium for biometric authentication

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.

Biometric authentication apparatus, biometric authentication method, and computer-readable storage medium

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.

Biometric image processing apparatus, biometric image processing method and storage medium

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.

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Kawasaki, Japan

Hajime Nada