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dc.contributor.author
Poli, Daniela
dc.contributor.author
Wolff, Kirsten
dc.contributor.author
Grün, Armin
dc.contributor.editor
Heipke, Christian
dc.contributor.editor
Jacobsen, K.
dc.contributor.editor
Muller, S.
dc.contributor.editor
Sörgel, U.
dc.date.accessioned
2019-10-09T12:09:17Z
dc.date.available
2017-06-08T21:55:10Z
dc.date.available
2019-10-09T12:09:17Z
dc.date.issued
2009
dc.identifier.issn
1682-1750
dc.identifier.issn
2194-9034
dc.identifier.issn
1682-1777
dc.identifier.uri
http://hdl.handle.net/20.500.11850/15912
dc.identifier.doi
10.3929/ethz-b-000015912
dc.description.abstract
This paper describes the investigations carried out at ETH Zurich on the very-high resolution optical satellite sensor WorldView-1.The dataset includes a stereopair acquired in November 2007 over Morrison, Colorado, USA, consisting of a quasi-nadir scenewithmean GSD close to 51cm and an off-nadir scene, with GSD up to 73cm. The radiometry of the images was evaluated through theestimation of the noise level (standard deviation of thedigital number) innon-homogeneous areas. For the orientation of the scenes,we used ground control points to estimate the parameters of an affine transformation and improve the orientation related to theRational Polynomial Coefficients (RPC) provided in the metadata files. The next step included the automatic DSM generationwithquality assessment. In all our tests the matching and the final DSM generation was realized with our in-house software package SAT-PP (Satellite ImagePrecisionProcessing) which has already been successfully used for other satellite sensors like IKONOS,ALOS/PRISM, Cartosat-1 and airborne linear and frame cameras. For the evaluation of the potential of a WorldView-1 stereo imagepair for DSM generation, reference data are fundamental. As no DSM with a suitable resolution was available in this dataset, wegenerated the reference DSM from 1:15’000 scale infrared aerial images purchased from USGS. The aerial images were acquired inApril 2002 with an analogue camera and scanned with a resolution of 14μm. No GCPs were available for the area covered by theaerial images. Therefore we defined a sufficient number of well-defined texture points in the oriented stereo pair of WorldView-1 asGCPs and determined their 3D coordinates using the orientation parameter of the satellite stereo pair. These points were used for theimage orientation of the aerial images, which leads to a good relative orientation between the two different image sets. By this weinvestigated the quality of the matching process with WorldView-1 stereo image data mostly independent of the exterior orientationparameters. We will present here our accuracy assessment by visual and quantitative analysis (3D residuals distribution andstatistics).The difference between the acquisition times of the two data sets (about 2.5 years) caused changes in the land cover, e.g.in correspondence of vegetation and buildings. In order to avoid the influence of temporal differences in our analysis, we comparedthe surface models in areas where no significant time depending changes could be expected.In addition, we evaluated the potential ofthe scenes for 3D building model extraction. The results are presented and discussed.
en_US
dc.format
application/pdf
en_US
dc.language.iso
en
en_US
dc.publisher
ISPRS
en_US
dc.rights.uri
http://creativecommons.org/licenses/by/3.0/
dc.subject
Worldview-1
en_US
dc.subject
orientation
en_US
dc.subject
matching
en_US
dc.subject
DSM
en_US
dc.subject
analysis
en_US
dc.title
Evaluation of WORLDVIEW-1 Stereo Scenes
en_US
dc.type
Conference Paper
dc.rights.license
Creative Commons Attribution 3.0 Unported
ethz.journal.title
International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences
ethz.journal.volume
XXXVIII
en_US
ethz.journal.issue
1-4-7/W5
en_US
ethz.journal.abbreviated
Int. Arch. Photogramm. Remote Sens. Spatial Inf. Sci.
ethz.pages.start
202
en_US
ethz.size
6 p.
en_US
ethz.version.deposit
publishedVersion
en_US
ethz.event
ISPRS Hannover Workshop 2009: High-Resolution Earth Imaging for Geospatial Information
en_US
ethz.event.location
Hannover, Germany
en_US
ethz.event.date
June 2-5, 2009
en_US
ethz.publication.place
Lemmer
en_US
ethz.publication.status
published
en_US
ethz.leitzahl
03220 - Grün, Armin
en_US
ethz.leitzahl.certified
03220 - Grün, Armin
ethz.identifier.url
https://www.isprs.org/proceedings/XXXVIII/1_4_7-W5/
ethz.date.deposited
2017-06-08T21:55:15Z
ethz.source
ECIT
ethz.identifier.importid
imp59364c5b40f0153678
ethz.ecitpid
pub:27744
ethz.eth
yes
en_US
ethz.availability
Open access
en_US
ethz.rosetta.installDate
2017-07-14T23:48:16Z
ethz.rosetta.lastUpdated
2019-10-09T12:09:30Z
ethz.rosetta.versionExported
true
ethz.COinS
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