Nec Corporation

Akira Tsuji

Junichi Abe

Yoshimasa Ono

Shuichi Karino

Jiro Abe

Hidemi Noguchi

Jun Suzuki

Yuki Hayashi

Masaki Kan

Shigeo Suzuki

Takahiro Iihoshi

Taisuke Tanabe

Hiroshi Matsumoto

Kenichi Maruhashi

Gen Morita

Haruki Takai

Takanori Shigeta

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

An abnormality detection system includes: shape data acquisition means for acquiring shape data of a surface of a structure; reference shape calculation means for calculating a reference shape for the shape data acquired by the shape data acquisition means; abnormality candidate extraction means for extracting an abnormality candidate area of the surface based on a difference between the reference shape calculated by the reference shape calculation means and the shape data corresponding to the reference shape; degree of roughness calculation means for calculating a degree of roughness of the abnormality candidate area extracted by the abnormality candidate extraction means and an area near the extracted abnormality candidate area; and abnormality determination means for determining that there is an abnormality in an area where the degree of roughness calculated by the roughness calculation means exceeds a threshold among the abnormality candidate areas extracted by the abnormality candidate extraction means.

Abnormality detection system, abnormality detection method, and computer readable medium

A member distinguishing apparatus includes a three-dimensional sensor that irradiates a member with a beam and acquire first point group data based on at least amplitude information of light, a point group data analysis unit that extracts second point group data which is point group data of the member from the first point group data, and obtains, with respect to the second point group data, a distribution of the point group data in a vertical direction which is a longitudinal direction of the member, a lateral direction orthogonal to an irradiation direction of the beam when an area of a surface of the member irradiated by the three-dimensional sensor becomes the largest and also orthogonal to the vertical direction, and a depth direction orthogonal to the longitudinal direction and the lateral direction, and a member distinguishing unit that distinguishes a type of the member from the distribution.

Member distinguish apparatus, member distinguish method, and computer-readable medium

A position management device includes: a sensor which acquires point cloud data in each unit time; a pair selection unit which selects a pair of the coordinates between first point cloud data and second point cloud data; and a position estimation unit which estimates a position of the moving object by making both coordinates of the pair selected by the pair selection unit correspond to each other and performing positioning processing of the first point cloud data and the second point cloud data. The pair selection unit selects the pair of the coordinates by pairing a first point belonging to the first point cloud data and a second point belonging to the second point cloud data in a case where a difference between a direction of the first point and a direction of the second point is equal to or smaller than a predetermined first threshold.

Position management device, position management system, position management method and non-transitory computer-readable medium having program stored thereon

A measurement control apparatus () according to the present disclosure includes: a detection unit () configured to detect an abnormal part of point group data acquired from a three-dimensional optical sensor; a control unit () configured to control the orientation of the three-dimensional optical sensor in accordance with the abnormal part detected by the detection unit (); and a determination unit () configured to determine the case of the abnormality of the abnormal part detected by the detection unit () based on the point group data measured by the three-dimensional optical sensor in the orientation controlled by the control unit ().

Measurement control apparatus, measurement system, measurement control 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

An inspection support apparatus () includes: an acquisition unit () configured to acquire information about specifications of a three-dimensional sensor, information about a shape and a planned placement position of each member to be inspected, and information about a planned installation position of the three-dimensional sensor; a simulation unit () configured to: calculate a distance between the planned placement position of each member and the planned installation position of the three-dimensional sensor based on the information acquired by the acquisition unit (); generate virtual point group data, a plurality of times for each calculated distance and for each member; and obtains a range of variations of variances in a predetermined direction based on the virtual point group data, and a determination unit () configured to determine whether or not each member can be distinguished at the planned placement position thereof based on the above-described range of variations.

Inspection support apparatus, inspection support method, and 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

An inspection apparatus () includes: a three-dimensional sensor () configured to irradiate a member to be inspected with a beam and acquire point cloud data of the member to be inspected based on at least amplitude information of light; a direction identifying unit () configured to identify a predetermined direction in which there are the largest number of the point cloud data in the reference coordinate system which is coordinate axes for the member to be inspected; and a tilt amount determination unit () configured to determine a tilt amount for changing an arrangement of the reference coordinate system so that the number of the point cloud data in the predetermined direction increases in the eigen coordinate system which is coordinate axes for the three-dimensional sensor ().

Inspection apparatus, measuring method, and computer readable medium for acquiring point cloud data of good quality in performing measurement of a member to be inspected using a three-dimensional sensor

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

An object is to provide a detection apparatus, a determination method, and a program capable of distinguishing a natural object from a structure and thereby detecting the natural object. A detection apparatus () according to the present disclosure includes a calculation unit () configured to calculate a normal vector for each point included in point-group data indicating a distance to an object to be determined by using the point-group data, and a determination unit () configured to determine whether the object to be determined is a natural object or not by using a distribution state of at least either horizontal components of the normal vectors or vertical components thereof.

Detection apparatus, determination method, and non-transitory computer readable medium storing program

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

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

A monitoring control device () according to the present embodiment is, for example, a monitoring control device used in a monitoring system that monitors a monitoring target facility by using a distance measurement sensor (). The monitoring control device () includes: a sensing region acquisition unit () configured to acquire measurement data indicating a sensing region of the distance measurement sensor () provided in order to monitor a monitoring target facility; and a management unit () configured to identify a non-monitoring region of the monitoring target facility, based on the sensing region and position data of the distance measurement sensor ().

Monitoring control device, monitoring system, monitoring control method, and non-transitory computer-readable medium with program stored therein

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

Growing community of inventors

Tokyo, Japan

Akira Tsuji