Skip to main content

Research Repository

Advanced Search

A pattern matching technique for measuring sediment displacement levels

Munro, Richard J.; Dalziel, Stuart B.; Jehan, H.

A pattern matching technique for measuring sediment displacement levels Thumbnail


Authors

Stuart B. Dalziel

H. Jehan



Abstract

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.

Journal Article Type Article
Acceptance Date Apr 30, 2004
Online Publication Date Jul 6, 2004
Publication Date Sep 1, 2004
Deposit Date Jun 6, 2016
Publicly Available Date Jun 6, 2016
Journal Experiments in Fluids
Print ISSN 0723-4864
Electronic ISSN 0723-4864
Publisher Springer Verlag
Peer Reviewed Peer Reviewed
Volume 37
Issue 3
DOI https://doi.org/10.1007/s00348-004-0829-8
Public URL https://nottingham-repository.worktribe.com/output/703216
Publisher URL http://dx.doi.org/10.1007/s00348-004-0829-8
Additional Information The final publication is available at Springer via http://dx.doi.org/10.1007/s00348-004-0829-8

Files





You might also like



Downloadable Citations