Measuring 3D coastal change with a digital camera

James, Michael and Ilic, Suzana and Ruzic, Igor (2013) Measuring 3D coastal change with a digital camera. In: Proceedings of Coastal Dynamics 2013. UNSPECIFIED, FRA, pp. 893-904.

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We explore the use of digital photography for reconstructing topographic data of coastal regions using ‘structure from motion’ (SfM) algorithms. 3D models are constructed from photographs taken from different positions in a workflow that offers significant simplifications in terms of data acquisition and automated processing, over traditional photogrammetry. Two different SfM implementations (one based on a local PC and the other on a web-based service) are demonstrated for quantifying surface change over different spatial scales - a subaerial beach, a cliff face and scour holes around vegetation tussocks. The results indicate that SfM is a promising tool for morphological measurement, capable of cheaply producing data that can be of a comparable accuracy to other commonly used techniques.

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11 Nov 2014 11:12
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12 Sep 2023 01:53