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Provedor de dados:  ArchiMer
País:  France
Título:  Adequacy of pseudo-direct georeferencing of terrestrial laser scanning data for coastal landscape surveying against indirect georeferencing
Autores:  Jaud, Marion
Letortu, Pauline
Augereau, Emmanuel
Le Dantec, Nicolas
Beauverger, Mickael
Cuq, Veronique
Prunier, Christophe
Le Bivic, Rejanne
Delacourt, Christophe
Data:  2017
Ano:  2017
Palavras-chave:  Terrestrial laser scanning
Coastal monitoring
Direct georeferencing
Indirect georeferencing
Multi-temporal surveys
Geomorphological evolution
Resumo:  The georeferencing process is crucial to the accuracy of terrestrial laser scanner (TLS) data, in particular in the context of diachronic studies relying on multi-temporal surveys. The use of Ground Control Points in the georeferencing process can however be complex when confronted with the practical constraints of coastal surveying. A simple and quick alternative method called "pseudo-direct georeferencing" is proposed in the present paper. This method involves internal inclinometers to measure roll and pitch angles and a centimetric GPS to measure the position of the TLS center and the position of one backsight target. When assessing the transformational uncertainty by using a set of independent ground validation points for both classical indirect and proposed pseudo-direct methods, we respectively obtain root mean square errors of 4.4 cm for the indirect method and 3.8 cm for the pseudo-direct method.
Tipo:  Text
Idioma:  Inglês

Editor:  Taylor & Francis Ltd
Formato:  application/pdf
Fonte:  European Journal Of Remote Sensing (Taylor & Francis Ltd), 2017 , Vol. 50 , N. 1 , P. 155-165
Direitos:  info:eu-repo/semantics/openAccess

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