8 September 2006 Analysis of gravel river beds using three-dimensional laser scanning
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The size and shape of the stones in dry gravel river beds are of interest in geology and river hydraulics. The topography of a bed surface can be measured by three-dimensional laser scanning. A method is described for fitting ellipsoids to the surfaces of individual stones to estimate their size, shape and orientation in the river bed. Different cost functions are evaluated and the methods are applied to data from a gravel river bed in the South Island of New Zealand.
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R. P. Millane, R. P. Millane, M. E. Fitzsimons, M. E. Fitzsimons, M. Qi, M. Qi, A. Haider, A. Haider, "Analysis of gravel river beds using three-dimensional laser scanning", Proc. SPIE 6316, Image Reconstruction from Incomplete Data IV, 63160B (8 September 2006); doi: 10.1117/12.683519; https://doi.org/10.1117/12.683519

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