Nec Corporation

Nec C Orporation

Keiichi Chono

Yuka Ogino

Masato Tsukada

Hirofumi Aoki

Chisato Funayama

Takashi Shibata

Shoji Yachida

Yasuhiko Yoshida

Yuzo Senda

Emi Kitagawa

Yusuke Mori

Kenta Senzaki

Ryuichi Akashi

Hiroshi Imai

Junji Tajime

Toru Takahashi

Takayuki Ishida

Hiroshi Yamada

Takahiro Toizumi

Ryo Yamakabe

Kenta Tokumitsu

Yoshihiro Miyamoto

Kensuke Shimofure

Suguru Nagayama

Naoya Tsuji

Satoshi Nakazawa

Kazuya Matsumoto

Hitoshi Imaoka

Shin Ishiguro

Eita Kobayashi

Motoaki Shimizu

Fumihiro Adachi

Masayuki Yuguchi

Toshiyuki Ikeda

Emi Inui

Tomonori Yanagita

Kenta Iida

Tetsuhiro Nanbu

In a video decoding device for decoding video using inter prediction, decoding control means sets capable values of an inter-PU (Prediction Unit) partition type of a CU (Coding Unit) to be decoded, based on whether or not a size of the CU to be decoded is equal to a minimum inter-PU size.

Video decoding device and video encoding device using inter prediction

In order to achieve improved compression efficiency while controlling implementation costs, an adaptive loop filter includes an acquisition unit configured to acquire statistical information on a picture to be coded, an allocation unit configured to allocate a single filter set common to a plurality of blocks included in the picture, based on the statistical information on the picture, and a filter processing unit configured to execute adaptive loop filter processing on each of the plurality of blocks, by using the single filter set.

Video coding apparatus, video coding method, video coding program, and non-transitory recording medium

An iris recognition apparatus is provided with: an irradiating device that is capable of irradiating light to a target person to be recognized; an acquiring device that acquires a first image which imaged a first imaging range including at least a face of the target person; and a determining device that determines an irradiation mode of light irradiated from the irradiating device to the target person when imaging a second image including an area, which includes an eye of the target person, and corresponding to a second imaging range, which is narrower than the first imaging range, based on the first image.

Iris recognition apparatus, iris recognition method, computer program and recording medium

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 is provided with: a first imaging apparatus () that captures an image of an imaging target (T, TP) that is located at a first point (P); a second imaging apparatus () a focus position of which is set at a second point (P) that is located at a forward side along a moving direction of the imaging target than the first point; and a control apparatus () that controls the second imaging apparatus to capture an image of the imaging target that is located at the second point on the basis of the image () captured by the first imaging apparatus.

Imaging system, imaging method, control apparatus, computer program and recording medium

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 imaging system () includes: iris imaging means () for photographing an iris of a subject; first irradiation means () for applying light to the subject; and second irradiation means () for applying light to the subject in such a manner that an angle between an optical axis of the light emitted from the second irradiation means () and an optical axis of the iris imaging means () is larger than an angle between an optical axis of the light emitted from the first irradiation means () and the optical axis of the iris imaging means ().

Imaging system, imaging method, and computer readable medium

The video coding device calculates a first value representing energy of the prediction error signals of the block to be processed, eliminates specified transform coefficients when at least one of a width and a height of the block to be processed exceeds a predetermined value and calculates a second value representing energy of the transform coefficients other than the eliminated transform coefficients, and decides not to make the candidate of prediction mode the optimal prediction mode, without executing quantizing, arithmetic-coding and local decoding, in a case where the second value is smaller than a predetermined degree as compared to the first value.

Video coding device and video coding method

An authentication system () is provided with: a first imaging apparatus () that obtains a first image () used for an authentication by capturing an image of a first imaging range; a second imaging apparatus () that obtains a second image () by capturing an image of a second imaging range that is wider than the first imaging range; and a control apparatus () that selects a target person (Ta) for the authentication on the basis of a target area (TA) in the second image that includes a predetermined portion (TP) of a person (T) and a reference area (RA) in the second image that corresponds to the first imaging range.

Authentication system, authentication method, control apparatus, computer program 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 imaging system () according to the disclosure includes: a first control unit () configured to control, in such a way as to fix a focal position in a predetermined position, an iris imaging means for capturing an image focusing on an iris of a target person; an authentication unit () configured to authenticate the target person, based on an iris image of the target person being captured by the iris imaging means controlled by the first control unit (); and a second control unit () configured to control the iris imaging means in such a way as to scan a focal position in a predetermined range, in order to re-authenticate the target person when authentication of the target person fails.

Imaging system, imaging method, and non-temporary computer-readable medium storing imaging program

The video encoding device for encoding video using inter prediction includes a unit which determines to perform an entropy-encoding process of encoding a PU (Prediction Unit) partition type syntax of a CU (Coding Unit) to be encoded, based on a prediction mode of the CU to be encoded being an inter prediction mode and a size of the CU to be encoded being equal to a predetermined minimum inter-PU size.

Video encoding device performing entropy-encoding process for inter prediction unit partition type syntax

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Tokyo, Japan

Keiichi Chono