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Iterative approach for efficient digital terrain model production from CARTOSAT-1 stereo images

Arefi, Hossein and d'Angelo, Pablo and Mayer, Helmut and Reinartz, Peter (2011) Iterative approach for efficient digital terrain model production from CARTOSAT-1 stereo images. Journal of Applied Remote Sensing, 5, pp. 1-19. Society of Photo-optical Instrumentation Engineers (SPIE). DOI: 10.1117/1.3595265

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Official URL: http://spiedigitallibrary.org/jars

Abstract

This paper proposes a new algorithm for automatic digital terrain model (DTM) generation from high resolution CARTOSAT-1 satellite images. It consists of two major steps: generation of digital surface models (DSM) from stereo scenes and hierarchical image filtering for DTM generation. Automatic georeferencing, dense stereo matching, and interpolation into a regular grid yields a DSM. In the second step, the DSM pixels are classified into ground and nonground regions using an algorithm motivated from gray-scale image reconstruction to suppress unwanted elevated pixels. Nonground regions, i.e., 3D objects as well as outliers are iteratively separated from the ground regions. The generated DTM is qualitatively and quantitatively evaluated. Height profiles and comparisons between the generated DSM, derived DTM, and ground truth data are presented. The evaluation indicates that almost all nonground objects regardless of their size are eliminated and appropriate results are archived in hilly as well as smooth residential areas.

Item URL in elib:https://elib.dlr.de/69999/
Document Type:Article
Title:Iterative approach for efficient digital terrain model production from CARTOSAT-1 stereo images
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Arefi, Hosseinhossein.arefi (at) dlr.deUNSPECIFIED
d'Angelo, PabloUNSPECIFIEDUNSPECIFIED
Mayer, HelmutUNSPECIFIEDUNSPECIFIED
Reinartz, PeterUNSPECIFIEDUNSPECIFIED
Date:1 June 2011
Journal or Publication Title:Journal of Applied Remote Sensing
Refereed publication:Yes
Open Access:Yes
Gold Open Access:No
In SCOPUS:Yes
In ISI Web of Science:Yes
Volume:5
DOI :10.1117/1.3595265
Page Range:pp. 1-19
Publisher:Society of Photo-optical Instrumentation Engineers (SPIE)
Status:Published
Keywords:digital terrain models; digital surface models; segmentation; semi-global matching; geodesic dilation; image reconstruction.
HGF - Research field:Aeronautics, Space and Transport (old)
HGF - Program:Space (old)
HGF - Program Themes:W EO - Erdbeobachtung
DLR - Research area:Space
DLR - Program:W EO - Erdbeobachtung
DLR - Research theme (Project):W - Vorhaben Photogrammetrie und Bildanalyse (old)
Location: Oberpfaffenhofen
Institutes and Institutions:Remote Sensing Technology Institute > Photogrammetry and Image Analysis
Deposited By: Arefi, Hossein
Deposited On:14 Jun 2011 08:14
Last Modified:31 Jul 2019 19:32

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