A pattern matching technique for measuring sediment displacement levels
This paper describes a novel technique for obtaining accurate, high (spatial) resolution measurements of sediment redeposition levels. A sequence of different random patterns are projected onto a sediment layer and captured using a high-resolution camera, producing a set of reference images. The sam...
| Main Authors: | , , |
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| Format: | Article |
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Springer
2004
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| Online Access: | https://eprints.nottingham.ac.uk/33562/ |
| _version_ | 1848794657041940480 |
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| author | Munro, Richard J. Dalziel, Stuart B. Jehan, H. |
| author_facet | Munro, Richard J. Dalziel, Stuart B. Jehan, H. |
| author_sort | Munro, Richard J. |
| building | Nottingham Research Data Repository |
| collection | Online Access |
| description | This paper describes a novel technique for obtaining accurate, high (spatial) resolution measurements of sediment redeposition levels. A sequence of different random patterns are projected onto a sediment layer and captured using a high-resolution camera, producing a set of reference images. The same patterns are used to obtain a corresponding sequence of deformed images after a region of the sediment layer has been displaced and redeposited, allowing the use of a high-accuracy pattern matching algorithm to quantify the distribution of the redeposited sediment. A set of experiments using the impact of a vortex ring with a glass ballotini particle layer as the resuspension mechanism are described to test and illustrate the technique. The accuracy of the procedure is assessed using a known crater profile, manufactured to simulate the features of the craters observed in the experiments. |
| first_indexed | 2025-11-14T19:19:40Z |
| format | Article |
| id | nottingham-33562 |
| institution | University of Nottingham Malaysia Campus |
| institution_category | Local University |
| last_indexed | 2025-11-14T19:19:40Z |
| publishDate | 2004 |
| publisher | Springer |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | nottingham-335622020-05-04T16:25:54Z https://eprints.nottingham.ac.uk/33562/ A pattern matching technique for measuring sediment displacement levels Munro, Richard J. Dalziel, Stuart B. Jehan, H. This paper describes a novel technique for obtaining accurate, high (spatial) resolution measurements of sediment redeposition levels. A sequence of different random patterns are projected onto a sediment layer and captured using a high-resolution camera, producing a set of reference images. The same patterns are used to obtain a corresponding sequence of deformed images after a region of the sediment layer has been displaced and redeposited, allowing the use of a high-accuracy pattern matching algorithm to quantify the distribution of the redeposited sediment. A set of experiments using the impact of a vortex ring with a glass ballotini particle layer as the resuspension mechanism are described to test and illustrate the technique. The accuracy of the procedure is assessed using a known crater profile, manufactured to simulate the features of the craters observed in the experiments. Springer 2004-09-01 Article PeerReviewed Munro, Richard J., Dalziel, Stuart B. and Jehan, H. (2004) A pattern matching technique for measuring sediment displacement levels. Experiments in Fluids, 37 (3). pp. 399-408. ISSN 0723-4864 http://dx.doi.org/10.1007/s00348-004-0829-8 doi:10.1007/s00348-004-0829-8 doi:10.1007/s00348-004-0829-8 |
| spellingShingle | Munro, Richard J. Dalziel, Stuart B. Jehan, H. A pattern matching technique for measuring sediment displacement levels |
| title | A pattern matching technique for measuring sediment displacement levels |
| title_full | A pattern matching technique for measuring sediment displacement levels |
| title_fullStr | A pattern matching technique for measuring sediment displacement levels |
| title_full_unstemmed | A pattern matching technique for measuring sediment displacement levels |
| title_short | A pattern matching technique for measuring sediment displacement levels |
| title_sort | pattern matching technique for measuring sediment displacement levels |
| url | https://eprints.nottingham.ac.uk/33562/ https://eprints.nottingham.ac.uk/33562/ https://eprints.nottingham.ac.uk/33562/ |