Study on deformation measurement method based on structured light point clouds
For the requirement of structural deformation measurement, a deformation measurement method based on structured light point clouds is proposed. A structured light measurement system is built, and the calibration process based on the assumption of the projector's reverse camera and with the help...
| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | zho |
| Published: |
EDP Sciences
2023-02-01
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| Series: | Xibei Gongye Daxue Xuebao |
| Subjects: | |
| Online Access: | https://www.jnwpu.org/articles/jnwpu/full_html/2023/01/jnwpu2023411p47/jnwpu2023411p47.html |
| _version_ | 1797415080940273664 |
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| author | XIAO Weizhong YUAN Yingtao GE Zhendong GUO Xiang SUO Tao YU Qifeng |
| author_facet | XIAO Weizhong YUAN Yingtao GE Zhendong GUO Xiang SUO Tao YU Qifeng |
| author_sort | XIAO Weizhong |
| collection | DOAJ |
| description | For the requirement of structural deformation measurement, a deformation measurement method based on structured light point clouds is proposed. A structured light measurement system is built, and the calibration process based on the assumption of the projector's reverse camera and with the help of the checkerboard calibration board is completed. The pattern projected by the projector is designed by using a four-step phase-shift technique assisted by Gray code. By combining with system parameters which have been calibrated, the three-dimensional reconstruction of the object surface is completed. A structural deformation measurement method based on the statistical analysis of the distance between point clouds is proposed, and the principles of three points cloud distance calculation methods including point-to-point, point-to-surface and surface-to-surface are analyzed. The feasibility and accuracy of the deformation measurement method based on the structured light point cloud proposed in this paper are verified via experiments. Experimental results show that this method can achieve out-plane high-precision displacement measurement of structures. |
| first_indexed | 2024-03-09T05:42:53Z |
| format | Article |
| id | doaj.art-2277c82003cd4d468c0469b9fef10bcc |
| institution | Directory Open Access Journal |
| issn | 1000-2758 2609-7125 |
| language | zho |
| last_indexed | 2024-03-09T05:42:53Z |
| publishDate | 2023-02-01 |
| publisher | EDP Sciences |
| record_format | Article |
| series | Xibei Gongye Daxue Xuebao |
| spelling | doaj.art-2277c82003cd4d468c0469b9fef10bcc2023-12-03T12:23:26ZzhoEDP SciencesXibei Gongye Daxue Xuebao1000-27582609-71252023-02-01411475510.1051/jnwpu/20234110047jnwpu2023411p47Study on deformation measurement method based on structured light point cloudsXIAO Weizhong0YUAN Yingtao1GE Zhendong2GUO Xiang3SUO Tao4YU Qifeng5School of Aeronautics, Northwestern Polytechnical UniversitySchool of Aeronautics, Northwestern Polytechnical UniversitySchool of Aeronautics, Northwestern Polytechnical UniversitySchool of Aeronautics, Northwestern Polytechnical UniversitySchool of Aeronautics, Northwestern Polytechnical UniversitySchool of Aeronautics, Northwestern Polytechnical UniversityFor the requirement of structural deformation measurement, a deformation measurement method based on structured light point clouds is proposed. A structured light measurement system is built, and the calibration process based on the assumption of the projector's reverse camera and with the help of the checkerboard calibration board is completed. The pattern projected by the projector is designed by using a four-step phase-shift technique assisted by Gray code. By combining with system parameters which have been calibrated, the three-dimensional reconstruction of the object surface is completed. A structural deformation measurement method based on the statistical analysis of the distance between point clouds is proposed, and the principles of three points cloud distance calculation methods including point-to-point, point-to-surface and surface-to-surface are analyzed. The feasibility and accuracy of the deformation measurement method based on the structured light point cloud proposed in this paper are verified via experiments. Experimental results show that this method can achieve out-plane high-precision displacement measurement of structures.https://www.jnwpu.org/articles/jnwpu/full_html/2023/01/jnwpu2023411p47/jnwpu2023411p47.html结构光格雷码相移点云变形测量 |
| spellingShingle | XIAO Weizhong YUAN Yingtao GE Zhendong GUO Xiang SUO Tao YU Qifeng Study on deformation measurement method based on structured light point clouds Xibei Gongye Daxue Xuebao 结构光 格雷码 相移 点云 变形测量 |
| title | Study on deformation measurement method based on structured light point clouds |
| title_full | Study on deformation measurement method based on structured light point clouds |
| title_fullStr | Study on deformation measurement method based on structured light point clouds |
| title_full_unstemmed | Study on deformation measurement method based on structured light point clouds |
| title_short | Study on deformation measurement method based on structured light point clouds |
| title_sort | study on deformation measurement method based on structured light point clouds |
| topic | 结构光 格雷码 相移 点云 变形测量 |
| url | https://www.jnwpu.org/articles/jnwpu/full_html/2023/01/jnwpu2023411p47/jnwpu2023411p47.html |
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