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Evaluation of high resolution digital surface models for single tree extraction approaches in mixed forests

Miri, Mohsen and Bayer, Steven and Bucher, Tilman (2013) Evaluation of high resolution digital surface models for single tree extraction approaches in mixed forests. In: Publikationen der Deutschen Gesellschaft für Photogrammetrie, Fernerkundung und Geoinformation e.V., 22, pp. 137-144. 33. Wissenschaftlich-Technische Jahrestagung der DGPF, 27. Feb.- 01. März 2013, Freiburg, Deutschland. ISSN 0942-2870

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Abstract

High resolution digital elevation models (DEM) are utilized in automatic extraction of single-trees in mixed forests. In this paper the digital surface models (DSM) provided from aerial images with resolutions of 8 cm and 20 cm and airborne laser scanning ALS data are investigated. The results showed a relative good representation of the tree crowns even in image-based DSM. However, increasing the resolution of imagery does not inevitably lead to better quality in DSM of forests. To evaluate the characteristics of deciduous and coniferous trees on such models, two features are introduced. The Inversed Quasi-Flatness (IQF) and the Averaged Height Variation (AHV) of the DSM are implemented on some automatically selected samples at the highest levels of elevation on nDSM to demonstrate the geometric and morphologic characteristics of the different DSMs.

Item URL in elib:https://elib.dlr.de/82747/
Document Type:Conference or Workshop Item (Speech, Paper)
Title:Evaluation of high resolution digital surface models for single tree extraction approaches in mixed forests
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Miri, Mohsenmohsen.miri (at) fu-berlin.deUNSPECIFIED
Bayer, Stevensteven.bayer (at) fu-berlin.deUNSPECIFIED
Bucher, Tilmantilman.bucher (at) dlr.deUNSPECIFIED
Date:2013
Journal or Publication Title:Publikationen der Deutschen Gesellschaft für Photogrammetrie, Fernerkundung und Geoinformation e.V.
Refereed publication:Yes
Open Access:Yes
Gold Open Access:No
In SCOPUS:No
In ISI Web of Science:No
Volume:22
Page Range:pp. 137-144
Editors:
EditorsEmail
Seyfert, EckhardtUNSPECIFIED
Series Name:Publikationen der Deutschen Gesellschaft für Photogrammetrie, Fernerkundung und Geoinformation e.V.
ISSN:0942-2870
Status:Published
Keywords:Segmentierung, Einzelbaum, Fernerkundung, OBIA, GIS, Forst
Event Title:33. Wissenschaftlich-Technische Jahrestagung der DGPF
Event Location:Freiburg, Deutschland
Event Type:international Conference
Event Dates:27. Feb.- 01. März 2013
Organizer:Deutsche Gesellschaft für Photogrammetrie, Fernerkundung und Geoinformation e.V.
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Space
HGF - Program Themes:other
DLR - Research area:Raumfahrt
DLR - Program:R - no assignment
DLR - Research theme (Project):R - no assignment
Location: Berlin-Adlershof
Institutes and Institutions:Optical Information Systems
Deposited By: Bucher, Tilman
Deposited On:11 Jun 2013 12:52
Last Modified:31 Jul 2019 19:41

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