GPR Virtual Guidance System for Subsurface 3D Imaging
Three-dimensional GPR imaging requires evenly and densely distributed measurements, ideally collected without the need for ground surface markings, which is difficult to achieve in large-scale surveys. In this study, a guidance system was developed to guide the GPR operator to walk along a predesign...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
| Published: |
MDPI AG
2021-05-01
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| Series: | Remote Sensing |
| Subjects: | |
| Online Access: | https://www.mdpi.com/2072-4292/13/11/2154 |
| _version_ | 1797531905906704384 |
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| author | Gabbo P. H. Ching Ray K. W. Chang Tess X. H. Luo Wallace W. L. Lai |
| author_facet | Gabbo P. H. Ching Ray K. W. Chang Tess X. H. Luo Wallace W. L. Lai |
| author_sort | Gabbo P. H. Ching |
| collection | DOAJ |
| description | Three-dimensional GPR imaging requires evenly and densely distributed measurements, ideally collected without the need for ground surface markings, which is difficult to achieve in large-scale surveys. In this study, a guidance system was developed to guide the GPR operator to walk along a predesigned traverse, analogous to the flight path design of an airborne drone. The guidance system integrates an auto-track total station unit (ATTS), and by estimating the real-time offset angle and distance, guidance corrections can be provided to the operator in real time. There are two advantages: (1) reduced survey time as grid marking on the ground is no longer needed and (2) accurate positioning of each traverse. Lab and field experiments were conducted in order to validate the guidance system. The results show that with the guidance system, the survey paths were better defined and followed in terms of feature connectivity and resolution of images, and the C-scans generated were closer to the real subsurface world. |
| first_indexed | 2024-03-10T10:50:33Z |
| format | Article |
| id | doaj.art-29a8d641a6a14aa1821965360bb9064b |
| institution | Directory Open Access Journal |
| issn | 2072-4292 |
| language | English |
| last_indexed | 2024-03-10T10:50:33Z |
| publishDate | 2021-05-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Remote Sensing |
| spelling | doaj.art-29a8d641a6a14aa1821965360bb9064b2023-11-21T22:13:26ZengMDPI AGRemote Sensing2072-42922021-05-011311215410.3390/rs13112154GPR Virtual Guidance System for Subsurface 3D ImagingGabbo P. H. Ching0Ray K. W. Chang1Tess X. H. Luo2Wallace W. L. Lai3Department of Land Surveying and Geo-Informatics, The Hong Kong Polytechnic University, Hung Hom, Hong KongDepartment of Land Surveying and Geo-Informatics, The Hong Kong Polytechnic University, Hung Hom, Hong KongDepartment of Transportation Engineering, Shenzhen University, Shenzhen 518000, ChinaDepartment of Land Surveying and Geo-Informatics, The Hong Kong Polytechnic University, Hung Hom, Hong KongThree-dimensional GPR imaging requires evenly and densely distributed measurements, ideally collected without the need for ground surface markings, which is difficult to achieve in large-scale surveys. In this study, a guidance system was developed to guide the GPR operator to walk along a predesigned traverse, analogous to the flight path design of an airborne drone. The guidance system integrates an auto-track total station unit (ATTS), and by estimating the real-time offset angle and distance, guidance corrections can be provided to the operator in real time. There are two advantages: (1) reduced survey time as grid marking on the ground is no longer needed and (2) accurate positioning of each traverse. Lab and field experiments were conducted in order to validate the guidance system. The results show that with the guidance system, the survey paths were better defined and followed in terms of feature connectivity and resolution of images, and the C-scans generated were closer to the real subsurface world.https://www.mdpi.com/2072-4292/13/11/2154ground penetrating radarvirtual guidance system3D GPR image |
| spellingShingle | Gabbo P. H. Ching Ray K. W. Chang Tess X. H. Luo Wallace W. L. Lai GPR Virtual Guidance System for Subsurface 3D Imaging Remote Sensing ground penetrating radar virtual guidance system 3D GPR image |
| title | GPR Virtual Guidance System for Subsurface 3D Imaging |
| title_full | GPR Virtual Guidance System for Subsurface 3D Imaging |
| title_fullStr | GPR Virtual Guidance System for Subsurface 3D Imaging |
| title_full_unstemmed | GPR Virtual Guidance System for Subsurface 3D Imaging |
| title_short | GPR Virtual Guidance System for Subsurface 3D Imaging |
| title_sort | gpr virtual guidance system for subsurface 3d imaging |
| topic | ground penetrating radar virtual guidance system 3D GPR image |
| url | https://www.mdpi.com/2072-4292/13/11/2154 |
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