Structural analysis of clastic dikes using Structure from Motion - Multi-View Stereo: a case-study in the Paraná Basin, southeastern Brazil

dc.contributoren-US
dc.contributorpt-BR
dc.creatorVIANA, CAMILA DUELIS
dc.creatorGROHMANN, CARLOS HENRIQUE
dc.creatorBUSARELLO, MARIANA DOS SANTOS TOLEDO
dc.creatorGARCIA, GUILHERME PEREIRA BENTO
dc.date2019-03-01
dc.date.accessioned2022-12-15T20:11:32Z
dc.date.available2022-12-15T20:11:32Z
dc.identifierhttps://ppegeo.igc.usp.br/index.php/bjg/article/view/12836
dc.identifier10.1590/2317-4889201800201898
dc.identifier.urihttps://repositorioslatinoamericanos.uchile.cl/handle/2250/5360142
dc.descriptionThis work presents the development of a three-dimensional (3D) model of an outcrop of the Corumbataí Formation (Permian, Paraná Basin, Brazil) using Structure from Motion - Multi-View Stereo (SfM-MVS) technique in order to provide a structural analysis of clastic dikes cutting through siltstone layers. While traditional photogrammetry requires the user to input a series of parameters related to the camera orientation and its characteristics (such as focal distance), in SfM-MVS the scene geometry, camera position and orientations are automatically determined by a bundle adjustment, an iterative procedure based on a set of overlapping images. It is considered a low-cost technique in terms of hardware and software, also being able to provide point density and accuracy on par to the ones obtained withTerrestrial Laser Scanning. The results acquired on this research have good agreement with previous works, yielding a NNW main orientation for the dikes measured in the field and on the 3D model. The development of this work showed that SfM-MVS use and practice on geosciences still needs more studies on the optimization of the involved parameters (such as camera orientation, image overlap and angle of illumination), which, when accomplished, will result in less processing time and more accurate models.en-US
dc.descriptionpt-BR
dc.formatapplication/pdf
dc.languageeng
dc.publisherSociedade Brasileira de Geologiapt-BR
dc.relationhttps://ppegeo.igc.usp.br/index.php/bjg/article/view/12836/12430
dc.rightsDireitos autorais 2019 Brazilian Journal of Geologypt-BR
dc.sourceBrazilian Journal og Geology; v. 48, n. 4 (2018); 839-852en-US
dc.sourceBrazilian Journal of Geology; v. 48, n. 4 (2018); 839-852pt-BR
dc.source2317-4692
dc.source2317-4889
dc.subjectClastic dikes; Structure from motion; Digital outcrop model; Photogrammetry; Structural geology.en-US
dc.subjectpt-BR
dc.titleStructural analysis of clastic dikes using Structure from Motion - Multi-View Stereo: a case-study in the Paraná Basin, southeastern Brazilen-US
dc.titlept-BR
dc.typeinfo:eu-repo/semantics/article
dc.typeinfo:eu-repo/semantics/publishedVersion
dc.typeen-US
dc.typept-BR


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