The use of small-format and low-altitude aerial photos for the realization of high-resolution DEMs in mountainous areas : application to the Super-Sauze earthflow
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2002
- handle: 10670/1.lckj4r
- halshs: halshs-00260644
- doi: 10.1002/esp.411
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info:eu-repo/semantics/altIdentifier/doi/10.1002/esp.411
info:eu-repo/semantics/OpenAccess
Mots-clés
digital elevation model automated digital photogrammetry small-format semi-metric camera terrain modelling earthflowSujets proches
Natural science Sciences Science of science Philosophy--Methodology Pictorial data processing Picture processing Processing, ImageCiter ce document
J.B. Henry et al., « The use of small-format and low-altitude aerial photos for the realization of high-resolution DEMs in mountainous areas : application to the Super-Sauze earthflow », HAL-SHS : architecture, ID : 10.1002/esp.411
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Résumé
Geomorphologists have to make choices and compromises, as acquisition techniques of geometrical information are numerous, depending on the specific complexity of the targeted three-dimensional objects and the requirements of the end user. This article presents the methodology and the results over a well known and documented site. This ready-to-use, low-altitude, aerial photo methodology reveals itself to be a satisfying compromise between cost, accuracy and difficulty of implementation. The selected equipment package is light enough to enable a quick reaction to unexpected events and the tools and methods are competitive with field acquisition techniques. An evaluation has demonstrated a sub-metric accuracy for the final result.