COMPUTING DEVICE, COMPUTING METHOD, AND PROGRAM

WIPO Patent Application WO/2024/057757

A1

[Problem] To enable acquisition of three-dimensional information obtained from a viewpoint on a construction machine. [Solution] This computing device: acquires positioning data by tracking and measuring the position of a reflection prism 102 on a construction machine 100 equipped with a camera 101 and the reflection prism 102, using a total station 200 of which an exterior orientation element in a specific coordinate system is known; acquires image data of a plurality of images captured by the camera 101 imaging overlapping areas from a plurality of different positions; calculates the relative positional relationship between a plurality of feature points p1, p2, p3 extracted from the plurality of captured images and the plurality of different positions of the camera 101; calculates the trajectory of the movement of the camera 101 with respect to the plurality of feature points p1, p2, p3 on the basis of changes in the relative positional relationship; and determines the positions of the plurality of feature points p1, p2, p3 in the specific coordinate system on the basis of a comparison between the calculated trajectory of the movement of the camera 101 and the positioning data.

SASAKI TAKESHI (JP)
FUKAYA NOBUYUKI (JP)
MISHIMA MASAHITO (JP)

PCT/JP2023/028348

March 21, 2024

August 02, 2023

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TOPCON CORP (JP)

G01C15/00; E02F9/20

JPH11211473A	1999-08-06
JP2012251774A	2012-12-20
JP2022046013A	2022-03-23
JP2016008484A	2016-01-18
JP2019045425A	2019-03-22
US20160253808A1	2016-09-01

SUENARI, Mikio (JP)

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