Listar Investigaciones por autor "Vargas, Raúl"

Mostrando ítems 1-5 de 5

    • Hybrid calibration procedure for fringe projection profilometry based on stereo vision and polynomial fitting 

      Vargas, Raúl; Marrugo, G.; Romero, Lenny A.; Zhang, Song (Cartagena de IndiasIngeniería Mecatrónica, 2020-03-19)
      The key to accurate 3D shape measurement in fringe projection profilometry (FPP) is the proper calibration of the measurement system. Current calibration techniques rely on phase-coordinate mapping (PCM) or back-projection ...

    • Method for large-scale structured-light system calibration 

      Marrugo Hernández, Andrés Guillermo; Vargas, Raúl; Romero, Lenny A; Zhang, Song (Cartagena de Indias, 2021-05-24)
      We propose a multi-stage calibration method for increasing the overall accuracy of a large-scale structured light system by leveraging the conventional stereo calibration approach using a pinhole model. We first calibrate ...

    • Modeling a Structured Light System with Open-Source Software 

      Quintero, Fernando J.; Vargas, Raúl; Romero, Lenny A.; Marrugo, Andrés G. (Cartagena de Indias, 2022)
      We propose modeling a structured light system with open-source computer graphics software to perform experimental verifications independently of the physical system. Encouraging experimental results show the capabilities ...

    • Pixel-wise rational model for a structured light system 

      Vargas, Raúl; Romero, Lenny A; Zhang, Song; Marrugo, Andrés G. (Cartagena de Indias, 2023-05-15)
      This Letter presents a novel structured light system model that effectively considers local lens distortion by pixel-wise rational functions. We leverage the stereo method for initial calibration and then estimate the ...

    • What is the best triangulation approach for a structured light system? 

      Meza, Jhacson; Vargas, Raúl; Romero, Lenny A.; Zhang, Song; Marrugo Hernández, Andrés Guillermo (Cartagena de Indias, 2020-05-18)
      It 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 ...

      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.