Nec Corporation

Mitsubishi Electric Corporation

Mitsubishi Chemical Corporation

Mitsubishi Denki Kabushiki Kaisha

Mitsubishi Rayon Company, Limited

Nec Asia Pacific Pte Ltd.

Shinkawa Ltd.

Nec Corporaiton

Junichi Abe

Tatsuya Nakamura

Wakako Yasuda

Hidemi Noguchi

Daisaku Ogasahara

Akira Tsuji

Kiyoshi Fukuchi

Atsufumi Shibayama

Naoaki Inoue

Masaki Sato

Shinji Sato

Masaru Kobayashi

Shintaro Yamada

Kazuhiko Otsuka

Takao Tsurimoto

Tadahiro Yoshida

Nobuhiro Kihara

Shigeru Nakamura

Hideo Yoshida

Hiroshi Matsumoto

Satoru Yoshida

Satoshi Ishii

Yoshinori Abe

Takashi Mizuochi

Katsuhiro Shimizu

Kazuo Kubo

Emmanuel Le Taillandier De Gabory

Manabu Yoshimura

Tomotaka Yano

Matahiko Ikeda

Kohei Hosokawa

Katsuhiko Horinouchi

Shigeo Suzuki

Tomoyuki Yamase

Soichiro Kainaga

Yoshimasa Ono

Jiro Abe

Fuminori Nakaya

Tomoko Tanabe

Hideyuki Fujii

Yukio Kitaike

Kazuya Ooaira

Koichiro Kitashima

Shogo Okazaki

Taisuke Tanabe

Megumi Higashikawa

Hachiro Fujita

Yuichiro Murata

Yasushi Amamiya

Yasunori Nakamura

Hisashi Ueda

Shinsuke Idenoue

Koichiro Sanefuji

Ryoko Kawano

Kazushige Sawada

Yutaka Kondo

Takayuki Kai

Yuuji Kawaguchi

Keiko Shouji

Yuichirou Murata

Kenji Suemura

Eiji Morito

Takanori Shigeta

Takahiro Edo

Yuko Yamaguchi

A measurement apparatus according to the present disclosure includes a position specifying unit configured to specify, using an apparatus reference coordinate system having a position of the measurement apparatus set as a reference, a position of each of a plurality of other measurement apparatuses; a candidate specifying unit configured to extract at least three measurement apparatuses out of the measurement apparatus and the plurality of the other measurement apparatuses and to specify, based on the positions of the extracted measurement apparatuses, a candidate region that serves as a candidate of a common region referred to in performing alignment of data captured by the measurement apparatus and the plurality of the other measurement apparatuses; and a common region determining unit configured to determine the common region based on the distribution of the plurality of the candidate regions obtained by changing combinations of the measurement apparatuses to be extracted.

Measurement apparatus, information processing apparatus, data specifying method, and non-transitory computer-readable medium

A detection device () according to the present disclosure includes an acquisition unit () that acquires point cloud data indicating a distance from a measurement device to an object and luminance information obtained from reflected light of a beam emitted when the point cloud data is measured, an edge detection unit () that performs edge detection based on the luminance information, and a crack determination unit () that determines whether an area indicates a crack by using a shape of the area in which, of a plurality of points indicated by the point cloud data, points having luminance within a predetermined range of difference from luminance of a point detected as an edge are distributed.

Detection device, determination method, and non-transitory computer-readable medium

A detection device () according to the present disclosure includes an acquisition unit () that acquires point cloud data indicating a distance to an object and luminance information obtained from reflected light of a beam emitted when the point cloud data is measured, an edge detection unit () that performs edge detection based on the luminance information, a classification unit () that classifies, based on distribution of points contained in a crack candidate being a set of points detected as an edge, a plurality of the crack candidates into one of groups, and a label assignment unit () that accepts input of a label regarding the group from a user having visually recognized a shape of the crack candidate belonging to the group.

Detection device, label assignment method, and non-transitory computer-readable medium

A processing apparatus () includes classification means () for classifying three-dimensional point group data acquired based on a reflected light from a structure to be inspected illuminated by light into clusters, which are units of a shape that corresponds to the structure to be inspected, based on positional information at each point of the data; and cluster association means () for determining whether a first cluster and a second cluster included in the classified clusters correspond to one structure to be inspected based on a positional relation between the classified clusters.

Processing apparatus, processing method, and computer readable medium

A display device () according to the present disclosure includes: a detection unit () that detects, in a three-dimensional space including measurement point group data measured by a three-dimensional optical sensor, intermediate point group data of an intermediate region from a viewpoint for two-dimensionally displaying the measurement point group data to target point group data within the measurement point group data; a setting unit () that sets, based on the detected intermediate point group data, a display aspect of the measurement point group data or the target point group data in such a way that the target point group data become visually recognizable from the viewpoint; and a display unit () that two-dimensionally displays the measurement point group data and the target point group data according to the set display aspect.

Display device, display method, and non-transitory computer-readable medium having program stored therein

An optical signal processing circuit () includes: an FDE-MIMO equalizer () configured to generate, based on continuous subcarrier signals including a target subcarrier signal in an optical multicarrier signal to be received, the continuous subcarrier signals that have been subjected to frequency-domain MIMO equalization processing; and a TDE-MIMO equalizer () configured to generate, based on the continuous subcarrier signals that have been subjected to the frequency-domain MIMO equalization processing, the target subcarrier signal that has been subjected to time-domain MIMO equalization processing.

Optical signal processing circuit, optical reception apparatus, and optical signal processing method

There is provided a surface abnormality detection device, and a system, capable of detecting an abnormal portion having a displacement below the distance measurement accuracy when detecting the abnormal portion on the surface of a structure. A surface abnormality detection device includes a classification means for classifying an object under measurement into one or more clusters having the same structure, based on position information at a plurality of points on a surface of the object under measurement; a determination means for determining a reflection brightness normal value of the cluster based on a distribution of reflection brightness values at a plurality of points on a surface of the cluster; and an identification means for identifying an abnormal portion on the surface of the cluster based on a difference between the reflection brightness normal value and the reflection brightness value at each of the plurality of points.

Surface abnormality detection device and system

If a configuration is employed in which modulation schemes used for an optical communication system can be switched depending on transmission conditions, the power consumption increases and the control becomes complex; therefore, an optical transmitter according to an exemplary aspect of the present invention includes an encoding means for encoding digital signals to be transmitted under a predetermined transmission condition over an optical carrier wave by using one of a plurality of encoding methods; an encoding control means for selecting a predetermined encoding method corresponding to the predetermined transmission condition from among the plurality of encoding methods and causing the encoding means to operate in accordance with the predetermined encoding method; a mapping means for mapping output bit signals output from the encoding means to modulation symbols; and an optical modulation means for modulating the optical carrier wave based on symbol signals output from the mapping means.

Optical transmitter, optical communication system, and optical communication method

When a frequency deviation compensation amount is compensated for by use of frequency shift, a phase offset occurs between adjacent input blocks included in a plurality of input blocks as divided, with the result that an error occurs in a reconstructed bit sequence. A frequency deviation compensation system of the invention is characterized by comprising: a frequency deviation compensation means for compensating for a frequency deviation occurring in a signal by use of frequency shift; and a phase offset compensation means for compensating for a phase offset occurring, in the signal, due to the frequency shift.

Frequency deviation compensation scheme and frequency deviation compensation method

An abnormal part display apparatus, an abnormal part display system, an abnormal part displaying method, and an abnormal part displaying program capable of improving visibility of an abnormal part in an object are provided. An abnormal part display apparatusaccording to the present disclosure includes an acquisition unitconfigured to acquire point group data of an object obtained by measuring the object by using a laser ranging apparatus, and a photograph image of the object obtained by photographing the object by using a photographing apparatus, a display unitconfigured to display the point group data and the photograph image on a predetermined screen, and a control unitconfigured to control the point group data and the photograph image to be displayed in the display unit

Abnormal part display apparatus, abnormal part display system, abnormal part display method, and abnormal part display program

A range finding apparatus () generates a plurality of range finding signals. The range finding apparatus () generates transmission light acquired by performing at least one of quadrature modulation and polarization modulation on an optical carrier wave by using each of the generated range finding signals. The range finding apparatus () transmits the generated transmission light. The range finding apparatus () receives reflection light which is the transmission light reflected by an object to be measured. The range finding apparatus () extracts a reception signal corresponding to each of the range finding signals by demodulating the reflection light. The range finding apparatus () computes a distance to the object to be measured by using any one or more of the extracted reception signals.

Range finding apparatus and control method

A distance-measuring apparatus () generates transmission light by generating a distance measurement signal, and subjecting an optical carrier wave to quadrature modulation on the basis of the generated distance measurement signal. The distance-measuring apparatus () outputs transmission light, and receives reflected light generated by reflecting the transmission light on an object () to be measured. The distance-measuring apparatus () compares the received reflected light with reference light to compute a distance from the distance-measuring apparatus () to the object () to be measured.

Distance-measuring apparatus and control method

To suppress the deterioration of the characteristics of a MIMO equalizer as well as minimizing an increase in circuit size in spite of the occurrence of signal spectrum narrowing and asymmetric spectrum degradation, a wavelength-division multiplexing optical transmission system () according to an embodiment includes a transmitter () that generates one channel signal by wavelength-division multiplexing a plurality of subcarrier signals so as to overlap each other and transmits the channel signal, and a receiver () that separates a received channel signal into subcarrier signals, and performs equalization using an MIMO equalizer () including a FDE-MIMO equalizer () and a TDE-MIMO equalizer () on each of the separated subcarrier signals.

Wavelength-division multiplexing optical transmission system, wavelength-division multiplexing optical transmission method, and non-transitory computer readable medium

Growing community of inventors

Tokyo, Japan

Junichi Abe