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/ | ||||||||||||
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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: |
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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: |
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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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