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Earth Surface Dynamics An interactive open-access journal of the European Geosciences Union

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https://doi.org/10.5194/esurf-2018-45
© Author(s) 2018. This work is distributed under
the Creative Commons Attribution 4.0 License.
Short communication
13 Jun 2018
Review status
This discussion paper is a preprint. It is a manuscript under review for the journal Earth Surface Dynamics (ESurf).
Short Communication: Challenges and Applications of Structure-from-Motion Photogrammetry in a Physical Model of a Braided River
Pauline Leduc, Sarah Peirce, and Peter Ashmore Department of Geography, The University of Western Ontario, London, N6A 3K7, Canada
Abstract. Extending the applications of Structure-from-Motion (SfM) photogrammetry in river flumes, we present the main challenges and methods used to collect a large dataset (> 1000 digital elevation models) of high-quality topographic data using close-range SfM photogrammetry with a resulting vertical precision of ~ 1 mm. Automatic target-detection, batch processing, and considerations for image quality were fundamental to successful implementation of SfM on such a large dataset, which was used primarily for capturing details of gravel-bed braided river morphodynamics and sedimentology. While the applications of close-range SfM photogrammetry are numerous, we include sample results from DEM differencing, which was used to quantify morphology change and provide estimates of water depth in braided rivers, as well as image analysis for mapping bed surface texture. These methods and results contribute to the growing field of SfM applications in geomorphology and close-range experimental settings in general.
Citation: Leduc, P., Peirce, S., and Ashmore, P.: Short Communication: Challenges and Applications of Structure-from-Motion Photogrammetry in a Physical Model of a Braided River, Earth Surf. Dynam. Discuss., https://doi.org/10.5194/esurf-2018-45, in review, 2018.
Pauline Leduc et al.
Pauline Leduc et al.
Pauline Leduc et al.

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Short summary
This paper presents applications of Structure-from-Motion Photogrammetry in a physical model of a braided river used to quantify morphology change and provide estimates of water depth, as well as image analysis for mapping bed surface texture.
This paper presents applications of Structure-from-Motion Photogrammetry in a physical model of...
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