Tokyo, Japan
Tokyo, Japan

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Patent
PASCO Corporation | Date: 2013-02-06

An object of the present invention is to provide a cursor display method and a cursor display program by which a cursor enabling recognition and indication of a position in a depth direction of a two-dimensional image. Provided is a cursor display method of displaying a cursor 2, indicating a focus point while being manipulatable to move, in a two-dimensional image in which sets of laser point cloud data 1 distributed on a three-dimensional coordinate system are shown on the basis of a predetermined view point position. The cursor display method includes: performing arithmetic on a position on the three-dimensional coordinate system which corresponds to the focus point in the two-dimensional image; defining a predetermined plane graphic region 3, including the corresponding position and being orthogonal to a view point position direction, on the three-dimensional coordinate system on the basis of the corresponding position; dividing a view region, originating from the view point position passing through the plane graphic region 3, into segments on the basis of the plane graphic region 3; and performing non-display processing on sets of laser point cloud data 1 placed in any one of the divided segments.


Patent
PASCO Corporation | Date: 2012-04-04

An object of the present invention is to provide a movable information collection apparatus capable of grasping the current situation in a timely fashion. Also, an object of the present invention is to provide a geographical monitoring system capable of utilizing the movable information collection apparatus. The movable information collection apparatus includes an observation data collection antenna system 1 that receives observation data obtained by observing an observation target area from the air, a geographic information database 2 that stores previously acquired geographic information in the observation target area, an evaluation calculation unit 3 that calculates and outputs a difference between the observation data and the previously acquired geographic information, the observation data collection antenna system 1, the geographic information database 2, and the evaluation calculation unit 3 being mounted on a movable pedestal 4.


Provided is a building roof outline recognition device which facilitates automation. A small-building candidate region is extracted based on normalized DSM data using a region segmentation method (S18). By using the building candidate region as a marker and further using height information included in the normalized DSM data and the like, a building region is extracted using a region growing method (S20). While referencing the height information, from among edges appearing in the orthoimage, edges fitting with an outer shape of the building region are extracted as an outer shape of the roof when viewed from above (S22). Further, for a building judged to have a slanted roof, a roof structure line which is the boundary between the roof surfaces is extracted from the building region (S26), and a three-dimensional structure of the building roof outline is determined from the roof outer shape and the roof structure line (S28).


Patent
PASCO Corporation | Date: 2011-02-23

[PROBLEM TO BE SOLVED] Disclosed is a method and apparatus for evaluating a solar radiation amount that can realize higher accuracy by virtue of consideration of terrain conditions. [SOLVING MEANS] Static satellite image data 1 and three-dimensional map model 2 are combined, and a mesh 3 based on plane coordinates is set in accordance with a ground resolution of the static satellite image data 1. A shadow area 4 is calculated based on the three-dimensional map model 2 and a solar position specified by photographing chronological data, and whether or not each cell 8 of the mesh 3 belongs to the shadow area 4 is determined. Also, a solar radiation evaluation component 6 of each cell 8 in an area to be evaluated is obtained with reference to a table 7 associating a pixel value 5 of each pixel in the static satellite image data 1 with the solar radiation evaluation component 6 in an area corresponding to each pixel. In addition, when the cell 8 is determined to belong to the shadow area 4, an evaluation component after terrain condition correction calculated by applying a predetermined correction calculation to the solar radiation evaluation component 6 is obtained.


When a photography unit 10 photographs a target to be photographed, a control unit 16 acquires distance data between a photography position and a target to be photographed of the photography unit 10, an azimuth angle and an elevation/depression angle of a photography direction of the photography unit 10 together with the image information by an angle distance measurement unit 12 synchronously or asynchronously to the shutter operation of the photography unit 10. The angle distance measurement unit 12 has a configuration without using an axis fixed onto a mobile object. Coordinate information of the photography position of the photography unit 10 is acquired from the coordinate measurement unit 14 synchronously to asynchronously to the shutter operation. The control unit 16 calculates coordinate information of a photographing target, based on the data of the acquired distance data, the azimuth, elevation and depression angles, and the coordinate information. The image information and coordinate information of the photographing target are output in association with each other.


It is aimed to enable analyzing vegetation growth conditions at multiple times of a year accurately using radar images obtainable from a flying body such as artificial satellites, etc. A plurality of radar images of a ground surface of a same target area, which have been taken at multiple times of a year by a radar device mounted on a flying body, are acquired. The acquired plurality of radar images is stored in a map database. While using as a criterion image a radar image of the plurality of radar images stored in the map database, taken at a predetermined time in the multiple times of a year, other radar images than the criterion image of the plurality of radar images, taken at other times than the predetermined time in the multiple times of a year, are aligned with the criterion image, respectively. Then, backscatter coefficients of specified areas in the plurality of radar images are extracted. Based on a backscatter coefficient of a specified area in the criterion image of the plurality of radar images stored in the map database, backscatter coefficients of other radar images than the criterion image of the plurality of radar images are calibrated. And, based on a correlation between backscatter coefficients of radar images and growth values of vegetation shown in the radar images, growth values of vegetation shown in other radar images than the criterion image of the plurality of radar images, whose backscatter coefficients have been calibrated in the calibrating step, are calculated using the calibrated backscatter coefficients.


A construction information management device and a construction information management system can readily grasp the history information about each layer below the surface of a road on which construction has been repeatedly carried out. After a subject construction is finished, a user creates the construction information about the subject construction in a construction information processing terminal (12), and the construction information is transmitted to a construction information management device (14). The construction information management device (14) receives the construction information, and, based on the construction information, analyzes the pavement structure of the construction zone. Based on the analyzed construction information, the construction information management device (14) also updates the history information about the construction subject road in a superimposing manner. When a request signal for requesting the history information is transmitted from the construction information processing terminal (12), the construction information management device (14) transmits the updated history information to the construction information processing terminal (12).


Patent
Pasco Corporation | Date: 2012-01-26

Provided is a data analysis device for automatically detecting a step on the ground based on point cloud data representing a three-dimensional shape of a feature surface. A space subject to analysis is divided into a plurality of subspaces. A boundary search unit (22) searches for a boundary formed by the step on a horizontal plane for each of the subspaces. The boundary search unit (22) searches for a step neighborhood area having a predetermined width, in which the points projected on the horizontal plane are accumulated equal to or more than a criterion set in advance and a cloud of the points have a difference in height equal to or more than a step threshold set in advance, and searches for a directional line along a distribution of the cloud of points belonging to the step neighborhood area on the horizontal plane as the boundary.


Patent
PASCO Corporation and Incorporated Administrative Agency Public Works Research Institute | Date: 2012-07-18

Measurement of 3D displacement based on successively captured images of an object becomes difficult to be performed due to a load imposed on an operator along with an increase of the number of target portions defined on the object and that of time steps for displacement measurement. A device for displacement measurement executes stereo measurement relative to a stereo image to generate 3D shape information and orthographically projected image of an object for each time (S40), and tracks the 2D image of the target portion through pattern matching between orthographically projected images at successive times (S42) to obtain a 2D displacement vector (S44). The device for displacement measurement converts the start point and the end point of the 2D displacement vector into 3D coordinates, using the 3D shape information (S46), to obtain a 3D displacement vector (S48).


Patent
PASCO Corporation | Date: 2013-07-31

Provided is a data analysis device for automatically detecting a step on the ground based on point cloud data representing a three-dimensional shape of a feature surface. A space subject to analysis is divided into a plurality of subspaces. Aboundary search unit (22) searches for a boundary formed by the step on a horizontal plane for each of the subspaces. The boundary search unit (22) searches for a step neighborhood area having a predetermined width, in which the points projected on the horizontal plane are accumulated equal to or more than a criterion set in advance and a cloud of the points have a difference in height equal to or more than a step threshold set in advance, and searches for a directional line along a distribution of the cloud of points belonging to the step neighborhood area on the horizontal plane as the boundary.

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