Show simple item record

dc.contributor.authorMeza, Jhacson
dc.contributor.authorVargas, Raúl
dc.contributor.authorRomero, Lenny A.
dc.contributor.authorZhang, Song
dc.contributor.authorMarrugo, Andres G.
dc.identifier.citationJhacson Meza, Raul Vargas, Lenny A. Romero, Song Zhang, and Andres G. Marrugo "What is the best triangulation approach for a structured light system?", Proc. SPIE 11397, Dimensional Optical Metrology and Inspection for Practical Applications IX, 113970D (18 May 2020);
dc.description.abstractIt has become customary to calibrate a camera-projector pair in a structured light (SL) system as a stereo-vision setup. The 3D reconstruction is carried out by triangulation from the detected point at the camera sensor and its correspondence at the projector DMD. There are several algebraic formulations to obtain the coordinates of the 3D point, especially in the presence of noise. However, it is not clear what is the best triangulation approach. In this study, we aimed to determine the most suitable triangulation method for SL systems in terms of accuracy and execution time. We assess different strategies in which both coordinates in the projector are known (point-point correspondence) and the case in which only the one coordinate in the DMD is known (pointline correspondence). We also introduce the idea of estimating the second projector coordinate with epipolar constraints. We carried out simulations and experiments to evaluate the differences between the triangulation methods, considering the phase-depth sensitivity of the system. Our results show that under suboptimal phasedepth sensitivity conditions, the triangulation method does influence the overall accuracy. Therefore, the system should be arranged for optimal phase-depth sensitivity so that any triangulation method ensures the same
dc.sourceProceedings Volume 11397, Dimensional Optical Metrology and Inspection for Practical Applications IX; 113970D (2020)spa
dc.titleWhat is the best triangulation approach for a structured light system?spa
dc.subject.keywordsMetrología ópticaspa
dc.subject.keywordsOptical Metrologyspa
dc.subject.keywordsReconstrucción 3Dspa
dc.subject.keywordsEnfoque de triangulaciónspa
dc.subject.keywords3D reconstructionspa
dc.subject.keywordsTriangulation approachspa
dc.identifier.instnameUniversidad Tecnológica de Bolívarspa
dc.identifier.reponameRepositorio Universidad Tecnológica de Bolívarspa
dc.publisher.placeCartagena de Indiasspa

Files in this item


This item appears in the following Collection(s)

Show simple item record

Universidad Tecnológica de Bolívar - 2017 Institución de Educación Superior sujeta a inspección y vigilancia por el Ministerio de Educación Nacional. Resolución No 961 del 26 de octubre de 1970 a través de la cual la Gobernación de Bolívar otorga la Personería Jurídica a la Universidad Tecnológica de Bolívar.