Memorias de investigación
Artículos en revistas:
A variational stereo method for the three-dimensional reconstruction of ocean waves
Año:2011
Áreas de investigación
  • Tecnología electrónica y de las comunicaciones
Datos
Descripción
We develop a novel remote sensing technique for the observation of waves on the ocean surface. Our method infers the 3-D waveform and radiance of oceanic sea states via a variational stereo imagery formulation. In this setting, the shape and radiance of the wave surface are given by minimizers of a composite energy functional that combines a photometric matching term along with regularization terms involving the smoothness of the unknowns. The desired ocean surface shape and radiance are the solution of a system of coupled partial differential equations derived from the optimality conditions of the energy functional. The proposed method is naturally extended to study the spatiotemporal dynamics of ocean waves and applied to three sets of stereo video data. Statistical and spectral analysis are carried out. Our results provide evidence that the observed omnidirectional wavenumber spectrum S(k) decays as k?2.5 is in agreement with Zakharov?s theory (1999). Furthermore, the 3-D spectrum of the reconstructed wave surface is exploited to estimate wave dispersion and currents.
Internacional
Si
JCR del ISI
Si
Título de la revista
Ieee Transactions on Geoscience And Remote Sensing
ISSN
0196-2892
Factor de impacto JCR
2,47
Información de impacto
Volumen
49
DOI
10.1109/TGRS.2011.2150230
Número de revista
11
Desde la página
4445
Hasta la página
4457
Mes
NOVIEMBRE
Ranking
Esta actividad pertenece a memorias de investigación
Participantes
  • Autor: Guillermo Gallego Bonet UPM
  • Autor: Anthony Yezzi Goergia Tech
  • Autor: Francesco Fedele Georgia Tech
  • Autor: Alvise Benetazzo IMS-NRC
Grupos de investigación, Departamentos, Centros e Institutos de I+D+i relacionados
  • Creador: Grupo de Investigación: Grupo de Tratamiento de Imágenes (GTI)
  • Departamento: Señales, Sistemas y Radiocomunicaciones