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Proceedings of the ISPRS Workshop 'Laser Scanning 2007 and SilviLaser 2007' September 12-14, 2007 Espoo, Finland / Petri Rönnholm (2007)

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Titre :	Proceedings of the ISPRS Workshop 'Laser Scanning 2007 and SilviLaser 2007' September 12-14, 2007 Espoo, Finland
Type de document :	Actes de congrès
Auteurs :	Petri Rönnholm, Éditeur scientifique ; H. Hyyppä, Éditeur scientifique ; Juha Hyyppä, Éditeur scientifique
Editeur :	International Society for Photogrammetry and Remote Sensing ISPRS
Année de publication :	2007
Collection :	International Archives of Photogrammetry and Remote Sensing, ISSN 0252-8231 num. 36-3/W52
Conférence :	ISPRS 2007, Workshop Laser Scanning and Silvilaser 12/09/2007 14/09/2007 Espoo Finlande OA Proceedings
Langues :	Anglais (eng)
Numéro de notice :	17342
Affiliation des auteurs :	non IGN
Thématique :	IMAGERIE
Nature :	Actes
DOI :	sans
En ligne :	http://www.isprs.org/proceedings/XXXVI/3-W52/
Format de la ressource électronique :	URL
Permalink :	https://documentation.ensg.eu/index.php?lvl=notice_display&id=83559

Contient

Processing full-waveform lidar data: modeling raw signals / Adrien Chauve (2007)

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contenu dans Proceedings of the ISPRS Workshop 'Laser Scanning 2007 and SilviLaser 2007' September 12-14, 2007 Espoo, Finland / Petri Rönnholm (2007)

Titre :	Processing full-waveform lidar data: modeling raw signals
Type de document :	Article/Communication
Auteurs :	Adrien Chauve , Auteur ; Clément Mallet , Auteur ; Frédéric Bretar, Auteur ; Sylvie Durrieu, Auteur ; Marc Pierrot-Deseilligny , Auteur ; William Puech, Auteur
Editeur :	International Society for Photogrammetry and Remote Sensing ISPRS
Année de publication :	2007
Collection :	International Archives of Photogrammetry and Remote Sensing, ISSN 0252-8231
Conférence :	ISPRS 2007, Workshop Laser Scanning and Silvilaser 12/09/2007 14/09/2007 Espoo Finlande OA Proceedings
Importance :	pp 102 -107
Note générale :	bibliographie
Langues :	Anglais (eng)
Descripteur :	[Vedettes matières IGN] Lasergrammétrie [Termes IGN] algorithme de Gauss [Termes IGN] forme d'onde pleine [Termes IGN] Lidar [Termes IGN] semis de points [Termes IGN] signal lidar [Termes IGN] traitement du signal
Résumé :	(auteur) Unlike airborne multi-echo laser scanner systems, full-waveform systems are able to digitize and record the entire backscattered signal of each laser pulse. It has been demonstrated that decomposing the return waveforms into a mixture of Gaussian components was suitable. In this paper, we focus on the improvement of peak detection and of raw signal modelling. Refined peak detection greatly increased the number of detected targets as well as their positional accuracy. Models more complex than the Gaussian model, such as the Lognormal or generalized Gaussian functions, were introduced and their contribution to waveform processing was studied. In this way, fitting of asymmetric, peaked or flattened echoes located both in urban and forested areas could be improved. Moreover, introduction of new echo parameters allowed the extraction of additional information on the target shape. This should make easier the decorrelation of geometric and radiometric influences on the signal and, as a consequence, the improvement of point cloud classification algorithms.
Numéro de notice :	C2007-012
Affiliation des auteurs :	MATIS+Ext (1993-2011)
Thématique :	IMAGERIE
Nature :	Communication
DOI :	sans
En ligne :	https://www.isprs.org/proceedings/XXXVI/3-W52/final_papers/Chauve_2007.pdf
Format de la ressource électronique :	URL article
Permalink :	https://documentation.ensg.eu/index.php?lvl=notice_display&id=83560

contenu dans Proceedings of the ISPRS Workshop 'Laser Scanning 2007 and SilviLaser 2007' September 12-14, 2007 Espoo, Finland / Petri Rönnholm (2007)

Processing full-waveform lidar data: modeling raw signals [Article/Communication] / Adrien Chauve

, Auteur ; Clément Mallet

, Auteur ; Frédéric Bretar, Auteur ; Sylvie Durrieu, Auteur ; Marc Pierrot-Deseilligny

, Auteur ; William Puech, Auteur . - International Society for Photogrammetry and Remote Sensing ISPRS, 2007 . - pp 102 -107. - (International Archives of Photogrammetry and Remote Sensing, ISSN 0252-8231) .
bibliographie
Langues : Anglais (eng)

Descripteur :	[Vedettes matières IGN] Lasergrammétrie [Termes IGN] algorithme de Gauss [Termes IGN] forme d'onde pleine [Termes IGN] Lidar [Termes IGN] semis de points [Termes IGN] signal lidar [Termes IGN] traitement du signal
Résumé :	(auteur) Unlike airborne multi-echo laser scanner systems, full-waveform systems are able to digitize and record the entire backscattered signal of each laser pulse. It has been demonstrated that decomposing the return waveforms into a mixture of Gaussian components was suitable. In this paper, we focus on the improvement of peak detection and of raw signal modelling. Refined peak detection greatly increased the number of detected targets as well as their positional accuracy. Models more complex than the Gaussian model, such as the Lognormal or generalized Gaussian functions, were introduced and their contribution to waveform processing was studied. In this way, fitting of asymmetric, peaked or flattened echoes located both in urban and forested areas could be improved. Moreover, introduction of new echo parameters allowed the extraction of additional information on the target shape. This should make easier the decorrelation of geometric and radiometric influences on the signal and, as a consequence, the improvement of point cloud classification algorithms.
Numéro de notice :	C2007-012
Affiliation des auteurs :	MATIS+Ext (1993-2011)
Thématique :	IMAGERIE
Nature :	Communication
DOI :	sans
En ligne :	https://www.isprs.org/proceedings/XXXVI/3-W52/final_papers/Chauve_2007.pdf
Format de la ressource électronique :	URL article
Permalink :	https://documentation.ensg.eu/index.php?lvl=notice_display&id=83560

Documents numériques

Processing full-waveform lidar data - application/pdf

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Processing full-waveform lidar data

Adobe Acrobat PDF

Experiences and possibilities of ALS based forest inventory in Finland / Matti Maltamo (2007)

Public

contenu dans Proceedings of the ISPRS Workshop 'Laser Scanning 2007 and SilviLaser 2007' September 12-14, 2007 Espoo, Finland / Petri Rönnholm (2007)

Titre :	Experiences and possibilities of ALS based forest inventory in Finland
Type de document :	Article/Communication
Auteurs :	Matti Maltamo, Auteur ; Petteri Packalen, Auteur ; Jussi Peuhkurinen, Auteur ; et al., Auteur
Editeur :	International Society for Photogrammetry and Remote Sensing ISPRS
Année de publication :	2007
Collection :	International Archives of Photogrammetry and Remote Sensing, ISSN 0252-8231
Conférence :	ISPRS 2007, Workshop Laser Scanning and Silvilaser 12/09/2007 14/09/2007 Espoo Finlande OA Proceedings
Importance :	pp 270 - 279
Note générale :	bibliographie
Langues :	Anglais (eng)
Descripteur :	[Vedettes matières IGN] Lasergrammétrie [Termes IGN] Finlande [Termes IGN] inventaire forestier (techniques et méthodes) [Termes IGN] inventaire forestier étranger (données)
Résumé :	(auteur) During last ten years the research concerning airborne laser scanning base d forest inventory applications has been very active in different parts of the world. In Finland, both basic approaches, single tree detection and area based modeling have been widely examined. In the following the results of the ALS based forest inventory experiments and further possibilities in Finland are reviewed and discussed. A short review of Finnish forestry in relation to possibilities of ALS based forest invent ories is included as well. Finally, some examples concerning the comparison of single tree detection and area based modeling and the usability of spatial information provided by ALS data are presented.
Numéro de notice :	C2007-047
Affiliation des auteurs :	non IGN
Thématique :	FORET/IMAGERIE
Nature :	Communication
DOI :	sans
En ligne :	https://www.isprs.org/proceedings/XXXVI/3-W52/final_papers/Maltamo_2007_keynote. [...]
Format de la ressource électronique :	URL article
Permalink :	https://documentation.ensg.eu/index.php?lvl=notice_display&id=100590

contenu dans Proceedings of the ISPRS Workshop 'Laser Scanning 2007 and SilviLaser 2007' September 12-14, 2007 Espoo, Finland / Petri Rönnholm (2007)

Experiences and possibilities of ALS based forest inventory in Finland [Article/Communication] / Matti Maltamo, Auteur ; Petteri Packalen, Auteur ; Jussi Peuhkurinen, Auteur ; et al., Auteur . - International Society for Photogrammetry and Remote Sensing ISPRS, 2007 . - pp 270 - 279. - (International Archives of Photogrammetry and Remote Sensing, ISSN 0252-8231) .
bibliographie
Langues : Anglais (eng)

Descripteur :	[Vedettes matières IGN] Lasergrammétrie [Termes IGN] Finlande [Termes IGN] inventaire forestier (techniques et méthodes) [Termes IGN] inventaire forestier étranger (données)
Résumé :	(auteur) During last ten years the research concerning airborne laser scanning base d forest inventory applications has been very active in different parts of the world. In Finland, both basic approaches, single tree detection and area based modeling have been widely examined. In the following the results of the ALS based forest inventory experiments and further possibilities in Finland are reviewed and discussed. A short review of Finnish forestry in relation to possibilities of ALS based forest invent ories is included as well. Finally, some examples concerning the comparison of single tree detection and area based modeling and the usability of spatial information provided by ALS data are presented.
Numéro de notice :	C2007-047
Affiliation des auteurs :	non IGN
Thématique :	FORET/IMAGERIE
Nature :	Communication
DOI :	sans
En ligne :	https://www.isprs.org/proceedings/XXXVI/3-W52/final_papers/Maltamo_2007_keynote. [...]
Format de la ressource électronique :	URL article
Permalink :	https://documentation.ensg.eu/index.php?lvl=notice_display&id=100590

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Code-barres	Cote	Support	Localisation	Section	Disponibilité
17342-01	DEP-EXM	Livre	LASTIG	Dépôt en unité	Exclu du prêt

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Accès directs

2014 -2024 IGN

Centre de documentation
scientifique