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(Article of periodic en Anglais - 2010)

Document title

Photogrammetric monitoring of small streams under a riparian forest canopy

Authors(s) and Affiliation(s)

BIRD S. (1) ; HOGAN D. (2) ; SCHWAB J. (3) ;
(1) Fluvial Systems Research Inc., White Rock, CANADA
(2) BC Ministry of Forests and Range, Research Branch, Victoria, CANADA
(3) BC Ministry of Forests and Range, Northern Interior Forest Region, Prince George, CANADA

Abstract

This paper presents a technique for the capture and analysis of close-range photogrammetric data acquired from a vertically mounted non-metric camera suspended 10 m above the channel bed by a unipod. The camera is positioned under the riparian forest canopy so that the channel bed can be imaged without obstruction. DEMs generated from this platform required post-possessing to either adjust or eliminate erroneous cells introduced by the extraction process, overhanging branches, and by the effects of refraction at the air–water interface for submerged portions of the channel bed. The vertical precision in the post-processed surface is depending on the quality of triangulation and the characteristics of the surface being imaged

Source

Article of periodic

published at : Earth surface processes and landforms / ISSN 0197-9337 / CODEN ESPLDB

Editor : Wiley, Chichester - ROYAUME-UNI (1981)

Millesime : 2010, vol. 35, no8 [pp. 952-970]

Bibliographic references : 1,5 p.

Collation : 10 fig., 9 tabl.

Language

Anglais

INIST-CNRS, Cote INIST : 17355

Digital Object Identifier

Go to electronic document thanks to its DOI : doi:10.1002/esp.2001

Tous droits réservés © Prodig - Bibliographie Géographique Internationale (BGI), 2011
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