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Automatic Generation Of High Quality DSM Based On IRS-P5 CARTOSAT-1 Stereo Data

d'Angelo, Pablo and Uttenthaler, Andreas and Carl, Sebastian and Barner, Frithjof and Reinartz, Peter (2010) Automatic Generation Of High Quality DSM Based On IRS-P5 CARTOSAT-1 Stereo Data. In: Special Publication SP-686, pp. 1-5. ESA Living Planet Symposium, 28. Jun. - 2. Jul. 2010, Bergen, Norwegen.



IRS-P5 Cartosat-1 high resolution stereo satellite imagery is well suited for the creation of digital surface models (DSM). A system for highly automated and operational DSM and orthoimage generation based on IRS-P5 Cartosat-1 imagery is presented, with an emphasis on automated processing and product quality. The proposed system processes IRS-P5 level-1 stereo scenes using the rational polynomial coefficients (RPC) universal sensor model. The described method uses an RPC correction based on DSM alignment instead of using reference images with a lower lateral accuracy, this results in improved geolocation of the DSMs and orthoimages. Following RPC correction, highly detailed DSMs with 5 m grid spacing are derived using Semiglobal Matching. The proposed method is part of an operational Cartosat-1 processor for the generation of a high resolution DSM. Evaluation of 18 scenes against independent ground truth measurements indicates a mean lateral error (CE90) of 6.7 meters and a mean vertical accuracy (LE90) of 5.1 meters.

Item URL in elib:https://elib.dlr.de/68690/
Document Type:Conference or Workshop Item (Paper, Poster)
Title:Automatic Generation Of High Quality DSM Based On IRS-P5 CARTOSAT-1 Stereo Data
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
d'Angelo, Pablopablo.angelo (at) dlr.deUNSPECIFIED
Uttenthaler, AndreasGAF AGUNSPECIFIED
Barner, FrithjofEuromapUNSPECIFIED
Reinartz, Peterpeter.reinartz (at) dlr.deUNSPECIFIED
Date:June 2010
Journal or Publication Title:Special Publication SP-686
Refereed publication:No
Open Access:Yes
Gold Open Access:No
In ISI Web of Science:No
Page Range:pp. 1-5
Keywords:Cartosat-1, Image Matching, Accuracy Evaluation
Event Title:ESA Living Planet Symposium
Event Location:Bergen, Norwegen
Event Type:international Conference
Event Dates:28. Jun. - 2. Jul. 2010
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: Angelo, Dr. Pablo
Deposited On:27 Jan 2011 09:39
Last Modified:31 Jul 2019 19:31

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