Memorias de investigación
Ponencias en congresos:
Joint 4-D Variational Stereo Reconstruction and Camera Calibration Refinement for Oceanic Sea State Measurements
Año:2014
Áreas de investigación
  • Tecnología electrónica y de las comunicaciones
Datos
Descripción
Validating modern oceanographic theories using models produced through stereo computer vision principles has recently emerged. Space-time (4-D) models of the ocean surface may be generated by stacking a series of 3-D reconstructions independently generated for each time instant or, in a more robust manner, by simultaneously processing several snapshots coherently in a true ?4-D reconstruction.? However, the accuracy of these computer-vision-generated models is subject to the estimations of camera parameters, which may be corrupted under the influence of natural factors such as wind and vibrations. Therefore, removing the unpredictable errors of the camera parameters is necessary for an accurate reconstruction. In this paper, we propose a novel algorithm that can jointly perform a 4-D reconstruction as well as correct the camera parameter errors introduced by external factors. The technique is founded upon variational optimization methods to benefit from their numerous advantages: continuity of the estimated surface in space and time, robustness, and accuracy. The performance of the proposed algorithm is tested using synthetic data produced through computer graphics techniques, based on which the errors of the camera parameters arising from natural factors can be simulated.
Internacional
Si
Nombre congreso
Int. Conf. on Ocean, Offshore and Arctic Engineering, OMAE2014
Tipo de participación
960
Lugar del congreso
San Francisco (CA), USA
Revisores
Si
ISBN o ISSN
978-0-7918-4537-0
DOI
10.1115/OMAE2014-23653
Fecha inicio congreso
08/06/2014
Fecha fin congreso
13/06/2014
Desde la página
1
Hasta la página
8
Título de las actas
Int. Conf. on Ocean, Offshore and Arctic Engineering, OMAE2014
Esta actividad pertenece a memorias de investigación
Participantes
  • Autor: Ping-Chang Shih
  • Autor: Guillermo Gallego Bonet UPM
  • Autor: Anthony Yezzi
  • Autor: Francesco Fedele
Grupos de investigación, Departamentos, Centros e Institutos de I+D+i relacionados
  • Creador: Grupo de Investigación: Grupo de Tratamiento de Imágenes (GTI)