Vision-Based Cable Displacement Measurement Using Side View Video
Recent tragedies around the world have shown how accidents in the cable-stayed bridges can wreak havoc on the society. To ensure the safety of the cable-stayed bridges, several studies have estimated the cable tension force using the vibration of cables. Most of these methods for estimating the tens...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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MDPI AG
2022-01-01
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| Series: | Sensors |
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| Online Access: | https://www.mdpi.com/1424-8220/22/3/962 |
| _version_ | 1797484757959835648 |
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| author | Geonhee Lee Sunjoong Kim Sangsub Ahn Ho-Kyung Kim Hyungchul Yoon |
| author_facet | Geonhee Lee Sunjoong Kim Sangsub Ahn Ho-Kyung Kim Hyungchul Yoon |
| author_sort | Geonhee Lee |
| collection | DOAJ |
| description | Recent tragedies around the world have shown how accidents in the cable-stayed bridges can wreak havoc on the society. To ensure the safety of the cable-stayed bridges, several studies have estimated the cable tension force using the vibration of cables. Most of these methods for estimating the tension of a cable start with measuring the displacement of the cable. Recent development of commercial cameras provide opportunity for more convenient and efficient method for measuring the displacement of cable. However, traditional vision-based displacement measurement methods require the assumption that the movement of the cable should be measured in parallel to the camera plane. This assumption limits the installation location of the camera when measuring the displacement of a cable. Therefore, this study introduces a new vision-based cable displacement measurement system that can measure the displacement of a cable in various locations even when the camera is installed in the side of the cable. The proposed method consists of three phases: (1) camera projection matrix estimation, (2) cable tracking in the image coordinate, and (3) cable displacement estimation in the world coordinate. To validate the performance of the proposed method, a simulation-based validation test, a lab-scale validation test, and an on-site validation test were conducted. The simulation-based validation test verified the performance of the proposed method in an ideal condition, and the lab-scale validation test showed the performance of the method in physical environment. Finally, the on-site validation test showed that the proposed method can measure the cable displacement with a side view camera. |
| first_indexed | 2024-03-09T23:09:02Z |
| format | Article |
| id | doaj.art-a618536f06c54f1a94b7be49a6f174f7 |
| institution | Directory Open Access Journal |
| issn | 1424-8220 |
| language | English |
| last_indexed | 2024-03-09T23:09:02Z |
| publishDate | 2022-01-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Sensors |
| spelling | doaj.art-a618536f06c54f1a94b7be49a6f174f72023-11-23T17:48:16ZengMDPI AGSensors1424-82202022-01-0122396210.3390/s22030962Vision-Based Cable Displacement Measurement Using Side View VideoGeonhee Lee0Sunjoong Kim1Sangsub Ahn2Ho-Kyung Kim3Hyungchul Yoon4Department of Disaster Prevention Engineering, College of Engineering, Chungbuk National University, Cheongju 28644, KoreaDepartment of Civil Engineering, College of Engineering, University of Seoul, Seoul 02504, KoreaKorea Expressway Corp., Hwaseong 18489, KoreaDepartment of Civil and Environmental Engineering, College of Engineering, Seoul National University, Seoul 08826, KoreaSchool of Civil Engineering, College of Engineering, Chungbuk National University, Cheongju 28644, KoreaRecent tragedies around the world have shown how accidents in the cable-stayed bridges can wreak havoc on the society. To ensure the safety of the cable-stayed bridges, several studies have estimated the cable tension force using the vibration of cables. Most of these methods for estimating the tension of a cable start with measuring the displacement of the cable. Recent development of commercial cameras provide opportunity for more convenient and efficient method for measuring the displacement of cable. However, traditional vision-based displacement measurement methods require the assumption that the movement of the cable should be measured in parallel to the camera plane. This assumption limits the installation location of the camera when measuring the displacement of a cable. Therefore, this study introduces a new vision-based cable displacement measurement system that can measure the displacement of a cable in various locations even when the camera is installed in the side of the cable. The proposed method consists of three phases: (1) camera projection matrix estimation, (2) cable tracking in the image coordinate, and (3) cable displacement estimation in the world coordinate. To validate the performance of the proposed method, a simulation-based validation test, a lab-scale validation test, and an on-site validation test were conducted. The simulation-based validation test verified the performance of the proposed method in an ideal condition, and the lab-scale validation test showed the performance of the method in physical environment. Finally, the on-site validation test showed that the proposed method can measure the cable displacement with a side view camera.https://www.mdpi.com/1424-8220/22/3/962vision-based displacement measurementcable-stayed bridgeside view videocomputer vision |
| spellingShingle | Geonhee Lee Sunjoong Kim Sangsub Ahn Ho-Kyung Kim Hyungchul Yoon Vision-Based Cable Displacement Measurement Using Side View Video Sensors vision-based displacement measurement cable-stayed bridge side view video computer vision |
| title | Vision-Based Cable Displacement Measurement Using Side View Video |
| title_full | Vision-Based Cable Displacement Measurement Using Side View Video |
| title_fullStr | Vision-Based Cable Displacement Measurement Using Side View Video |
| title_full_unstemmed | Vision-Based Cable Displacement Measurement Using Side View Video |
| title_short | Vision-Based Cable Displacement Measurement Using Side View Video |
| title_sort | vision based cable displacement measurement using side view video |
| topic | vision-based displacement measurement cable-stayed bridge side view video computer vision |
| url | https://www.mdpi.com/1424-8220/22/3/962 |
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