Title:
LINEAR OBJECT DETECTION DEVICE, LINEAR OBJECT DETECTION METHOD, AND LINEAR OBJECT DETECTION PROGRAM
Document Type and Number:
WIPO Patent Application WO/2024/023950
Kind Code:
A1
Abstract:
This linear object detection device comprises: a straight line detection unit that detects, with respect to a three-dimensional point cloud representing three-dimensional coordinates at points on the surface of a structure, straight lines on the basis of the three-dimensional coordinates, divides the three-dimensional point cloud related to one of the detected straight lines according to the distance between three-dimensional points related to the one detected straight line, and detects straight lines again on the basis of the three-dimensional coordinates for each divided three-dimensional point cloud; and a classification unit that groups the straight lines on the basis of the orientations of the plurality of straight lines detected and angles between the straight lines and the ground, and classifies straight lines among the straight lines included in the same group as straight lines corresponding to the same structure if angles between the straight lines and line segments connecting the straight lines are within a threshold value.
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Inventors:
GOTO YUKIHIRO (JP)
SAKURAHARA YUSUKE (JP)
WAKI MASAKI (JP)
EBINE TAKASHI (JP)
SAKURAHARA YUSUKE (JP)
WAKI MASAKI (JP)
EBINE TAKASHI (JP)
Application Number:
PCT/JP2022/028848
Publication Date:
February 01, 2024
Filing Date:
July 26, 2022
Export Citation:
Assignee:
NIPPON TELEGRAPH & TELEPHONE (JP)
International Classes:
G01B11/24
Foreign References:
| JP2019101987A | 2019-06-24 | |||
| JP2015001901A | 2015-01-05 | |||
| US20190235011A1 | 2019-08-01 |
Attorney, Agent or Firm:
TAIYO, NAKAJIMA & KATO (JP)
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