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Including virtual target points from laser scanning into the point-wise rigorous deformation analysis at geo-monitoring applications

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Including virtual target points from laser scanning into the point-wise rigorous deformation analysis at geo-monitoring applications

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dc.contributor.author Raffl, Lukas es_ES
dc.contributor.author Holst, Christoph es_ES
dc.date.accessioned 2023-03-07T09:54:55Z
dc.date.available 2023-03-07T09:54:55Z
dc.date.issued 2023-01-27
dc.identifier.isbn 9788490489796
dc.identifier.uri http://hdl.handle.net/10251/192391
dc.description.abstract [EN] We present a method to include virtual target points from laser scanning into the point-based rigorous deformation analysis to derive precise 3D deformation vectors. This method overcomes the challenge of missing point identities in laser scans and is developed especially for geo-monitoring applications that demand an early identification of deformations at previously unknown positions. Our approach is based on virtual targets represented by local scan patches. Each patch is matched between overlapping stations and across different measurement epochs using the Iterative Closest Point Algorithm (ICP). Thus, similar to feature points, a number of homologous points is created and polar pseudo-observations are derived. This allows to integrate the observations into a free network adjustment and into a rigorous deformation analysis. We apply this method to the geo-monitoring of rock surfaces on Mt. Hochvogel where we use a scanning total station combining point-wise measurements to signalized targets and pseudo-observations derived from area-wise laser scans. In our application, numerous virtual target points could be created throughout the deformation object. The results show that the new method improves the accuracy and reliability of the subsequent rigorous deformation analysis and it, thus, allows for an early identification of deformations at geo-monitoring applications. Still there is some improvement in the selection of suitable patches needed, as the matching accuracy of the ICP strongly depends on the point distribution within the patches. es_ES
dc.format.extent 7 es_ES
dc.language Inglés es_ES
dc.publisher Editorial Universitat Politècnica de València es_ES
dc.relation.ispartof 5th Joint International Symposium on Deformation Monitoring (JISDM 2022)
dc.rights Reconocimiento - No comercial - Compartir igual (by-nc-sa) es_ES
dc.subject Point clouds es_ES
dc.subject Deformation vectors es_ES
dc.subject Virtual targets es_ES
dc.subject Congruence model es_ES
dc.subject Scanning total station es_ES
dc.title Including virtual target points from laser scanning into the point-wise rigorous deformation analysis at geo-monitoring applications es_ES
dc.type Capítulo de libro es_ES
dc.type Comunicación en congreso es_ES
dc.identifier.doi 10.4995/JISDM2022.2022.13844
dc.rights.accessRights Abierto es_ES
dc.description.bibliographicCitation Raffl, L.; Holst, C. (2023). Including virtual target points from laser scanning into the point-wise rigorous deformation analysis at geo-monitoring applications. En 5th Joint International Symposium on Deformation Monitoring (JISDM 2022). Editorial Universitat Politècnica de València. 291-297. https://doi.org/10.4995/JISDM2022.2022.13844 es_ES
dc.description.accrualMethod OCS es_ES
dc.relation.conferencename 5th Joint International Symposium on Deformation Monitoring es_ES
dc.relation.conferencedate Junio 20-22, 2022 es_ES
dc.relation.conferenceplace València, España es_ES
dc.relation.publisherversion http://ocs.editorial.upv.es/index.php/JISDM/JISDM2022/paper/view/13844 es_ES
dc.description.upvformatpinicio 291 es_ES
dc.description.upvformatpfin 297 es_ES
dc.type.version info:eu-repo/semantics/publishedVersion es_ES
dc.relation.pasarela OCS\13844 es_ES
dc.contributor.funder Bayerisches Staatsministerium für Umwelt und Verbraucherschutz


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