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Title: Applying close range digital photogrammetry in soil erosion studies
Authors: Heng, B.C. Peter
Chandler, Jim H.
Armstrong, Alona
Keywords: Close range digital photogrammetry
Dome effects
Morphology
Oblique imagery
Precision
Soil surface measurement
Issue Date: 2010
Publisher: © The Authors. The Photogrammetric Record © The Remote Sensing and Photogrammetry Society and Blackwell Publishing Ltd.
Citation: HENG, B.C.P., CHANDLER, J.H. and ARMSTRONG, A., 2010. Applying close range digital photogrammetry in soil erosion studies. The Photogrammetric Record, 25 (131), pp. 240-265.
Abstract: Soil erosion due to rainfall and overland flow is a significant environmental problem. Studying the phenomenon requires accurate high-resolution measurements of soil surface topography and morphology. Close range digital photogrammetry with an oblique convergent configuration is proposed in this paper as a useful technique for such measurements, in the context of a flume-scale experimental study. The precision of the technique is assessed by comparing triangulation solutions and the resulting DEMs with varying tie point distributions and control point measurements, as well as by comparing DEMs extracted from different images of the same surface. Independent measurements were acquired using a terrestrial laser scanner for comparison with a DEM derived from photogrammetry. The results point to the need for a stronger geometric configuration to improve precision. They also suggest that the camera lens models were not fully adequate for the large object depths in this study. Nevertheless, the photogrammetric output can provide useful topographical information for soil erosion studies, provided limitations of the technique are duly considered.
Description: This article was published in the journal, The Photogrammetric Record [© The Authors. The Photogrammetric Record © The Remote Sensing and Photogrammetry Society and Blackwell Publishing Ltd.] The definitive version is available at wileyonlinelibrary.com: http://dx.doi.org/10.1111/j.1477-9730.2010.00584.x
Version: Accepted for publication
DOI: 10.1111/j.1477-9730.2010.00584.x
URI: https://dspace.lboro.ac.uk/2134/8999
Publisher Link: http://dx.doi.org/10.1111/j.1477-9730.2010.00584.x
ISSN: 0031-868X
1477-9730
Appears in Collections:Published Articles (Civil and Building Engineering)

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