Nec Corporation

Nippon Telegraph and Telephone Corporation

Nec C Orporation

The University of Electro-communications

Masato Tsukada

Keiichi Chono

Yuka Ogino

Chisato Funayama

Takashi Shibata

Shoji Yachida

Yasuhiko Yoshida

Emi Kitagawa

Yusuke Mori

Ryuichi Akashi

Hiroshi Imai

Kenta Senzaki

Takahiro Toizumi

Hirofumi Aoki

Toru Takahashi

Hiroaki Kawaguchi

Hiroshi Yamada

Ryo Yamakabe

Masato Toda

Eiji Kaneko

Gaku Nakano

Kosuke Yoshimi

Johji Tajima

Koji Sasayama

Madhuri Mahendra Nagare

Keishi Habara

Masatsugu Ichino

Tsubasa Boura

Kimberly Nancy McGuire

Yoshihiro Shimazu

Kenichi Yukimatsu

Wende Zhong

Emi Inui

Daisuke Uenoyama

An authentication device includes an image acquisition unit, an identification unit, and an authentication unit. The image acquisition unit acquires an image of an eye of a subject. The identification unit identifies the colored pattern of a colored contact lens worn by the subject by comparing a reference image with the image of the eye. The authentication unit identifies the subject, using a feature in a region other than a colored region of the colored pattern in the iris region of the eye.

Authentication device, authentication method, and recording medium

An imaging system includes: an imaging unit that captures an image of an eye area of a target person by using an image sensor that allows imaging without saturating observed light; an acquisition unit that obtains, from the image, a first information about a first area that does not include reflection of light by an eyeglass lens of the target person, and a second information about a second area that includes the reflection of the light; and a correction unit that corrects the second information so as to reduce an influence of the reflection, on the basis of the first information. According to such an imaging system, it is possible to properly capture the iris image even when the target person is wearing eyeglasses.

Imaging system, imaging method, and computer program

A control device according to an aspect of the present disclosure includes: at least one memory configured to store instructions; and at least one processor configured to execute the instructions to: acquire an input image including an eye region that is a region of an eye part; estimate illuminance of the eye part from the acquired input image; and determine a light amount of illumination of visible light with which the eye part is irradiated in such a way that a pupil size of the eye part satisfies a size condition based on an illuminance size relationship that is a relationship between the illuminance and the pupil size.

Determination of light amount of illumination of visible light with which the eye part is irradiated such that pupil size satisfies a size condition

An information processing system () comprises: a distance acquisition unit () that specifies an iris area containing an iris of a target from a visible-light image of the target, and acquires an iris distance that is a distance to the iris area; an iris image acquisition unit () that acquires an iris image of the target by changing a focal length according to the iris distance; a score computing unit () that calculates a score relating to deviation of a focus in the iris image, based on the iris image; and a correlation update unit () that updates correlation between the iris distance and the focal length at a moment of acquisition of the iris image, based on the score. According to such an information processing system, since the correlation is updated with good accuracy, it is possible to acquire the appropriate iris image.

Information processing system, information processing apparatus, information processing method, and recording medium

An illumination device emits light toward a moving subject. A controller controls light emitted from the illumination device so that the amount of light applied to the subject is adjusted to a specific amount or smaller. For example, when the illumination device emits light in a pulsed manner, the controller may control the amount of light applied to the subject by controlling at least one of the pulse width and the pulse intensity of the light. The controller may, for example, control the light emitted from the illumination device according to the distance between the illumination device and the subject.

Illumination control apparatus, method, system, and computer readable medium

The disclosure is detecting an authentication target who is moving in a predetermined direction in a video; inputting a first image in which an entire body of the target; calculating characteristic information from an image of the entire body in the first image, comparing the calculated characteristic information with characteristic information of the entire body stored in first memory that stores characteristic information of entire bodies of targets, and extracting candidate information of the targets from the first memory based on a first authentication result; inputting a second image in which an iris of the target; and comparing characteristic information of irises stored in second memory that stores the characteristic information of the irises of targets with characteristic information of an iris from the second image, calculating a verification score, executing second authentication on the target in the second image based on the verification score, and outputting an authentication result.

An information providing device according to one aspect of the present disclosure includes: at least one memory storing a set of instructions; and at least one processor configured to execute the set of instructions to: receive a face image; determine whether a person in the face image is unsuitable for iris data acquisition based on the face image; and output information based on determining that the person is unsuitable for the iris data acquisition when the person is determined to be unsuitable for the iris data acquisition.

Information providing device, information providing method, and storage medium

An information processing system () comprises: an acquiring means () for acquiring skin color information which is information relating to skin color of a target; an estimating means () for estimating luminance information of skin of the target on the basis of the skin color information; and a control means () for controlling at least one of camera parameter relating to exposure and illumination () when imaging the target on the basis of the luminance information. According to such the information processing system, it is possible to image a target with an appropriate condition.

Information processing system, information processing apparatus, information processing method and recording medium

The optical control apparatus includes a light source, a light collecting section, and an optical path control section. The light source emits light. The light collecting section collects the light emitted from the light source and illuminates the light onto an object.

Optical control apparatus and optical control method

A feature conversion learning device is configured to acquire a first image, reduce the first image to a second image having lower resolution than the first image, enlarge the second image to a third image having the same resolution as the first image, extract a first feature that is a feature of the first image and a second feature, convert the second feature into a third feature, and learn a feature conversion method based on a result of comparing the first feature with the third feature.

Feature conversion learning device, authentication device, feature conversion learning method, authentication method, and recording medium

A parameter optimization system () includes: an image sensor () having at least one sensing parameter; a parameter setting unit () configured to be able to change the sensing parameter; a score calculation unit () configured to calculate a score from an image acquired by the image sensor; and a parameter determination unit () configured to determine a right parameter value that is a value of the sensing parameter at which the score is relatively high, based on a value of the sensing parameter and the score corresponding to the value of the sensing parameter. According to such a parameter optimization system, the sensing parameter of the image sensor can be set to an appropriate value.

Optimizing sensing parameter in imaging device using scores

A photographing system according to one example embodiment includes a hardware photographing device configured to photograph each of a first pattern and a second pattern; at least one memory storing instructions; and at least one processor configured to execute the instructions to: set, for the hardware photographing device, a control value for changing the focal position; evaluate degrees of focus of a plurality of images of the first pattern and select an image having a maximum evaluation value, as well as evaluate degrees of focus of a plurality of images of the second pattern and select an image having a maximum evaluation value; and acquire a correspondence relationship between a focal position of an optical system and a control value, based on the control values used in capturing the images of the first pattern and the second pattern, and subject distances of the first pattern and the second pattern.

Photographing system, calibration method, and non-transitory computer-readable medium storing program

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Tokyo, Japan

Masato Tsukada