Digital image correlation for whole field out-of-plane displacement measurement using a single camera
Digital image correlation (DIC) using a single camera has been widely used for inplane displacement and strain measurement. However, in order to obtain out-of-plane displacement, one should employ stereo vision systems which enable multiple directions detection. In this paper, we develop a simple me...
| Main Authors: | , , , |
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| Other Authors: | |
| Format: | Journal Article |
| Language: | English |
| Published: |
2011
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| Subjects: | |
| Online Access: | https://hdl.handle.net/10356/91583 http://hdl.handle.net/10220/6703 |
| _version_ | 1826128825280364544 |
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| author | Tay, Cho Jui Quan, Chenggen Huang, Yuanhao Fu, Yu |
| author2 | Temasek Laboratories |
| author_facet | Temasek Laboratories Tay, Cho Jui Quan, Chenggen Huang, Yuanhao Fu, Yu |
| author_sort | Tay, Cho Jui |
| collection | NTU |
| description | Digital image correlation (DIC) using a single camera has been widely used for inplane displacement and strain measurement. However, in order to obtain out-of-plane displacement, one should employ stereo vision systems which enable multiple directions detection. In this paper, we develop a simple method for whole field out-of-plane displacement measurement using only one camera. The proposed method employs digital image correlation to calculate an apparent in-plane displacement field which is introduced by magnification change due to an unknown out-of-plane displacement. The unknown out-of-plane displacement is subsequently determined from a pinhole camera model and the apparent in-plane displacement. Experiments conducted on a plate, a cantilever beam and a surface with height variation demonstrate that the method is simple, accurate and suitable for measurement of non-structured objects. |
| first_indexed | 2024-10-01T07:31:11Z |
| format | Journal Article |
| id | ntu-10356/91583 |
| institution | Nanyang Technological University |
| language | English |
| last_indexed | 2024-10-01T07:31:11Z |
| publishDate | 2011 |
| record_format | dspace |
| spelling | ntu-10356/915832020-09-26T22:19:12Z Digital image correlation for whole field out-of-plane displacement measurement using a single camera Tay, Cho Jui Quan, Chenggen Huang, Yuanhao Fu, Yu Temasek Laboratories DRNTU::Science::Physics::Optics and light Digital image correlation (DIC) using a single camera has been widely used for inplane displacement and strain measurement. However, in order to obtain out-of-plane displacement, one should employ stereo vision systems which enable multiple directions detection. In this paper, we develop a simple method for whole field out-of-plane displacement measurement using only one camera. The proposed method employs digital image correlation to calculate an apparent in-plane displacement field which is introduced by magnification change due to an unknown out-of-plane displacement. The unknown out-of-plane displacement is subsequently determined from a pinhole camera model and the apparent in-plane displacement. Experiments conducted on a plate, a cantilever beam and a surface with height variation demonstrate that the method is simple, accurate and suitable for measurement of non-structured objects. Accepted version 2011-01-25T09:07:57Z 2019-12-06T18:08:20Z 2011-01-25T09:07:57Z 2019-12-06T18:08:20Z 2005 2005 Journal Article Tay, C. J., Quan, C., Huang, Y., & Fu, Y. (2005). Digital image correlation for whole field out-of-plane displacement measurement using a single camera. Optics Communications, 251(1-3), 23-36. 0030-4018 https://hdl.handle.net/10356/91583 http://hdl.handle.net/10220/6703 10.1016/j.optcom.2005.02.070 en Optics communications This is the author created version of a work that has been peer reviewed and accepted for publication by Optics Communications, Elsevier. It incorporates referee’s comments but changes resulting from the publishing process, such as copyediting, structural formatting, may not be reflected in this document. The published version is available at: [DOI:http://dx.doi.org/10.1016/j.optcom.2005.02.070]. 26 p. application/pdf |
| spellingShingle | DRNTU::Science::Physics::Optics and light Tay, Cho Jui Quan, Chenggen Huang, Yuanhao Fu, Yu Digital image correlation for whole field out-of-plane displacement measurement using a single camera |
| title | Digital image correlation for whole field out-of-plane displacement measurement using a single camera |
| title_full | Digital image correlation for whole field out-of-plane displacement measurement using a single camera |
| title_fullStr | Digital image correlation for whole field out-of-plane displacement measurement using a single camera |
| title_full_unstemmed | Digital image correlation for whole field out-of-plane displacement measurement using a single camera |
| title_short | Digital image correlation for whole field out-of-plane displacement measurement using a single camera |
| title_sort | digital image correlation for whole field out of plane displacement measurement using a single camera |
| topic | DRNTU::Science::Physics::Optics and light |
| url | https://hdl.handle.net/10356/91583 http://hdl.handle.net/10220/6703 |
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