Nec Corporation

Nissan Motor Company Limited

Kabushiki Kaisha Toshiba

Nhk Spring Co., Ltd.

Yokohama Kiko Co., Ltd.

Ikeda Bussan Co. Ltd.

Johnan Seisakusho Co., Ltd.

Bridgestone Corporation

Oki Electric Industry Co., Ltd.

Olympus Imaging Corporation

Clarion Co

Tachi-s Co., Ltd.

Kajima Corporation

Koken Ltd.

Kiko Co., Ltd.

Hiroshi Imai

Keiichi Chono

Takashi Shibata

Masato Tsukada

Shoji Yachida

Yuka Ogino

Chisato Funayama

Yasuhiko Yoshida

Emi Kitagawa

Ryuichi Akashi

Yusuke Mori

Junichi Kasai

Susumu Senaha

Suguru Nomura

Suizo Kyo

Akira Akagami

Akira Ohno

Shitomi Katayama

Susumu Shimomura

Masahiro Kubo

Hiroshi Yamada

Katsumi Abe

Hiroshi Tsuda

Kimiyasu Takoh

Yuji Ohno

Ersin Altintas

Osamu Tochikubo

Takayuki Yanagishima

Koji Semba

Yasuo Himuro

Fujio Okumura

Yuzo Senda

Masao Imai

Fukashi Sugasawa

Jun Takada

Masayuki Kikuchi

Nobuaki Takanashi

Gaku Nakano

Mitsuru Morita

Fubito Igari

Masahiko Ohta

Atsushi Hatabu

Hiroshi Hasegawa

Fumio Miyauchi

Kazushi Kimura

Yoshimitsu Takeda

Yoshimasa Tuchiya

Tsuyoshi Sato

Masahiro Matsuhashi

Hisao Ichinose

Tsutomu Takei

Hiroo Matsunaga

Akio Tomita

Zhen Wang

Hironobu Fukushima

Subhajit Chaudhury

Katsumi Kawamoto

Minoru Shibata

Tasuku Kasebayashi

Shigekazu Okuma

Akiro Ohno

Hitomi Katayama

Susumu Shmomura

Yoshihiko Ichikawa

Emi Inui

Yuichi Izaki

Hideyuki Meguro

Kyoya Tanaka

Osamu Takesita

Naoaki Hamada

Norihiro Nagao

Kansuke Honma

Nobutaka Sugano

Hiroshi Kogawa

Makoto Nagayama

Tatuyoshi Nanbu

A repeater device that can achieve signal transferring and path switching in optical transmission lines susceptible to environmental changes is provided. The repeater device receives weak signal light and normal reference light and transmits them in a communication network. The repeater includes: an optical route selector that selects an input-side spatial link connected to an upstream adjacent node and an output-side spatial link connected to a downstream adjacent node; a link state detector that detects a link state of at least one of the input-side spatial link and the output-side spatial link, wherein the link state is an attenuation rate or a transmission rate; and a controller that controls the optical route selector to select an optimal pair of output-side spatial link and input-side spatial link according to the link state.

Repeater device and transmission control techniques in quantum cryptographic communication system

A communication device can achieve SN ratio and stability of signal output an optical transmission line having the propagation characteristics susceptible to environmental changes. The communication device includes: an optical reception section configured to receive weak signal light and reference light arriving through the optical transmission line; an optical amplifier that amplifies received reference light; a probe light receiver that receives probe light arriving from the transmitting-side communication device through the optical transmission line; and a controller configured to calculate a transmission line state detected based on received probe light and control a gain of the optical amplifier according to the transmission line state.

Communication control techniques in quantum cryptographic communication system

An optical system including: an imaging element configured to convert light into an electric signal; a lens configured to deflect and converge the light; and a prism disposed in an optical path between the imaging element and the lens, wherein a virtual image of a light receiving surface of the imaging element is formed in the prism and a focusing surface is at a position conjugate with the virtual image with the lens interposed therebetween.

Optical system, imaging apparatus, and projection apparatus

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 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

There is provided a pedestrian guidance device that pedestrians can be guided to their respective attributes, the pedestrian guidance device including: a detection unit configured to detect respective viewpoint positions and attributes of a plurality of pedestrians; and a display unit configured to display simultaneously a plurality of images for guiding the respective pedestrians on the same screen, based on the respective attributes of the plurality of pedestrians, and displaying the plurality of images such that the plurality of images are displayed in respective directions of the viewpoint positions of the pedestrians respectively corresponding to the images.

Pedestrian guidance device, pedestrian guidance method, and computer-readable recording medium

To provide a system, a method and the like for acquiring more images or more quickly focused images. A control device acquires information regarding a situation of a range captured by an imaging device, determines a mode according to an assumed situation of the range captured by the imaging device among a plurality of focusing modes, and transmits designation information specifying the determined mode to the imaging device. The imaging device receives the designation information from the control device, and captures an image using the mode specified by the received designation information.

Imaging control system, imaging control method, control device, control method, and storage medium

The coordinate system fixing unit uses the displacement of an object under measurement between photographed images in chronological order to generate fixed-coordinate chronological images. The displacement calculation unit uses the fixed-coordinate chronological images to calculate a two-dimensional spatial distribution of the displacement of the surface of the object under measurement. The displacement difference calculation unit calculates a two-dimensional displacement difference distribution by removing an error component from the two-dimensional spatial distribution. The depth movement amount calculation unit calculates a depth movement amount from the two-dimensional displacement difference distribution. The displacement separation unit calculates in-plane displacement from the two-dimensional displacement difference distribution. The determination unit uses the in-plane displacement and/or the depth movement amount to determine whether there is an abnormality in the object under measurement.

Abnormality determination device, abnormality determination method, and program storage medium

In order to determine whether a color contact lens is being worn on an iris, this image processing device includes: a first feature amount calculation means for using an image of the iris in a first wavelength band to calculate a first feature amount in the first wavelength band, said iris being used in authentication of a person; a second feature amount calculation means for using an image of the iris in a second wavelength band to calculate a second feature amount in the second wavelength band; and a covering determination means for determining, on the basis of the first feature amount and the second feature amount, whether a color contact lens is present on the iris.

Image processing device, authentication system, image processing method, authentication method, and recording medium

An authentication system 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: track an object included in a video captured by a first capture device; detect a candidate for biometric authentication in the object being tracked; determine whether biometric authentication has been performed for the candidate based on a record of biometric authentication performed for the object being tracked; and perform the biometric authentication for the candidate based on a video of an authentication part of the candidate when the biometric authentication has not been performed for the candidate, the video of the authentication part being captured by a second capture device having a capture range including a part of a capture range of the first capture device.

Authentication system, authentication method, and storage medium

Provided are a system, a method, and the like which contribute to more reliably and smoothly providing information relating to an authentication result to a person who has been subjected to authentication. An information provision system according to an embodiment of the present invention comprises: an authentication unit which authenticates an authentication subject, who is to be subjected to authentication, using a captured image of the authentication subject; a determination unit which, in accordance with information about the authentication subject or the conditions of the authentication subject, determines the transmission destination to which information relating to the authentication result is to be transmitted in order to notify the authentication subject of the authentication result; and a transmission unit which transmits the information to the determined transmission destination.

Information provision system, information provision method, and storage medium

An image acquisition unit () acquires an image obtained by capturing at least eyes of a target person. An object specifying unit () specifies an object in a line-of-sight direction of the target person using the acquired image. An incident light amount calculation unit () calculates an incident light amount representing an amount of light incident on the eyes of the target person using the acquired image. A reference pupil size determination unit () determines a reference pupil size based on the calculated incident light amount. A pupil size calculation unit () calculates a pupil size of the target person using the acquired image. An interest determination unit () determines an interest of the target person in the object by comparing the determined reference pupil size with the calculated pupil size.

Interest determination apparatus, interest determination system, interest determination method, and non-transitory computer readable medium storing program

The objective of the present invention is to detect defects in a structure accurately in a non-contact manner. An optical path length converting unit () is disposed between a specimen being inspected and an image capturing element () in such a way as to cover part of a field of view of the image capturing element (). An image analyzing unit () uses images captured by the image capturing element () to calculate amounts of displacement within the surface of the specimen, obtained using two fields of view of the image capturing element () not covered/covered by the optical path length converting unit (). An out-of-plane displacement calculating unit () calculates an out-of-plane displacement of the specimen on the basis of the calculated amounts of displacement.

Displacement amount measuring device, displacement amount measuring method, and recording medium

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Tokyo, Japan

Hiroshi Imai