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Dealing with systematic laser scanner errors due to misalignment at area-based deformation analyses

dc.contributor.authorHolst, Christoph
dc.contributor.authorMedić, Tomislav
dc.contributor.authorKuhlmann, Heiner
dc.date.accessioned2019-06-05T07:17:05Z
dc.date.available2019-06-05T07:17:05Z
dc.date.issued07.03.2018
dc.identifier.urihttp://hdl.handle.net/20.500.11811/1344
dc.description.abstractThe ability to acquire rapid, dense and high quality 3D data has made terrestrial laser scanners (TLS) a desirable instrument for tasks demanding a high geometrical accuracy, such as geodetic deformation analyses. However, TLS measurements are influenced by systematic errors due to internal misalignments of the instrument. The resulting errors in the point cloud might exceed the magnitude of random errors. Hence, it is important to assure that the deformation analysis is not biased by these influences. In this study, we propose and evaluate several strategies for reducing the effect of TLS misalignments on deformation analyses. The strategies are based on the bundled in-situ self-calibration and on the exploitation of two-face measurements. The strategies are verified analyzing the deformation of the Onsala Space Observatory’s radio telescope’s main reflector. It is demonstrated that either two-face measurements as well as the in-situ calibration of the laser scanner in a bundle adjustment improve the results of deformation analysis. The best solution is gained by a combination of both strategies.de
dc.format.extent17
dc.language.isoeng
dc.relationhttps://www.degruyter.com/view/j/jag.2018.12.issue-2/jag-2017-0044/jag-2017-0044.xml The final publication is available at www.degruyter.com
dc.rightsIn Copyright
dc.rights.urihttp://rightsstatements.org/vocab/InC/1.0/
dc.subjectterrestrial laser scanner
dc.subjectmisalignments
dc.subjectarea-based deformation analysis
dc.subjectself-calibration
dc.subjecttwo-face measurements
dc.subjectparameter estimation
dc.subjectsensitivity analysis
dc.subject.ddc550 Geowissenschaften
dc.titleDealing with systematic laser scanner errors due to misalignment at area-based deformation analyses
dc.typeWissenschaftlicher Artikel
dc.publisher.namede Gruyter
dc.publisher.locationBerlin
dc.rights.accessRightsopenAccess
dc.relation.eissn1862-9024
dcterms.bibliographicCitation.volume2018, Bd. 12
dcterms.bibliographicCitation.issue2
dcterms.bibliographicCitation.pagestart169
dcterms.bibliographicCitation.pageend185
dc.relation.doihttps://dx.doi.org/10.1515/jag-2017-0044
dcterms.bibliographicCitation.journaltitleJournal of Applied Geodesy
ulbbn.pubtypeZweitveröffentlichung


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