Title:
EXTRACTION DEVICE, EXTRACTION METHOD, AND EXTRACTION PROGRAM
Document Type and Number:
WIPO Patent Application WO/2024/023900
Kind Code:
A1
Abstract:
This extraction device comprises: a dividing unit that divides a point group in the height direction and generates height groups; a first calculation unit that, for the divided point group, carries out circle detection in group units by projecting, for each of the height groups, the point group of each height group onto an XY plane containing an x-axis and a y-axis; and a columnar object determination unit that determines whether a circle detected in each of the height groups satisfies a prescribed condition, and that extracts a columnar object which satisfies the prescribed condition.
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Inventors:
GOTO YUKIHIRO (JP)
SAKURAHARA YUSUKE (JP)
EBINE TAKASHI (JP)
SAKURAHARA YUSUKE (JP)
EBINE TAKASHI (JP)
Application Number:
PCT/JP2022/028668
Publication Date:
February 01, 2024
Filing Date:
July 25, 2022
Export Citation:
Assignee:
NIPPON TELEGRAPH & TELEPHONE (JP)
International Classes:
G01C15/00; G01B11/24; G01S17/89
Foreign References:
| JP2017167092A | 2017-09-21 | |||
| JP2014109555A | 2014-06-12 | |||
| JP2015152319A | 2015-08-24 |
Other References:
YUKIHIRO GOTO, TOMOYA SHIMIZU, MASAAKI INOUE, MASAKI WAKI, MITSUYASU YANAGITA, YUSUKE SAKURAHARA, CHIHARU MATSUMOTO, HIDEAKI MIYAN: "BK-2-4 Structural Degradation Identification System for Streamlining of Outdoor Equipment Inspections", PROCEEDINGS OF 2021 IEICE COMMUNICATIONS SOCIETY CONFERENCE (1); SEPTEMBER 14-17, 2021, IEICE, JP, 31 August 2021 (2021-08-31) - 17 September 2021 (2021-09-17), JP, pages SS9 - SS10, XP009552362
MASAKI WAKE, TAKASHI GOTO, KOJI IEDA, TOSHIO KURASHIMA: "BT-3-5 Utilization of 3D Equipment Management Technology for Maintenance and Inspection Work: 3D Externally Accessible Equipment Management Technology Using Mobile Mapping Systems, Part 6", PROCEEDINGS OF 2016 IEICE COMMUNICATIONS SOCIETY CONFERENCE (2); 2016.09.20-23, IEICE, JP, 6 September 2016 (2016-09-06) - 23 September 2016 (2016-09-23), JP, pages SS50 - SS51, XP009552363
MASAKI WAKE, TAKASHI GOTO, KOJI IEDA, TOSHIO KURASHIMA: "BT-3-5 Utilization of 3D Equipment Management Technology for Maintenance and Inspection Work: 3D Externally Accessible Equipment Management Technology Using Mobile Mapping Systems, Part 6", PROCEEDINGS OF 2016 IEICE COMMUNICATIONS SOCIETY CONFERENCE (2); 2016.09.20-23, IEICE, JP, 6 September 2016 (2016-09-06) - 23 September 2016 (2016-09-23), JP, pages SS50 - SS51, XP009552363
Attorney, Agent or Firm:
TAIYO, NAKAJIMA & KATO (JP)
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