A Variational Stereo Method for the Three-Dimensional Reconstruction of Ocean Waves

Gallego Bonet, Guillermo and Yezzi, Anthony and Fedele, Francesco and Benetazzo, Alvise (2011). A Variational Stereo Method for the Three-Dimensional Reconstruction of Ocean Waves. "Ieee Transactions on Geoscience And Remote Sensing", v. 49 (n. 11); pp. 4445-4457. ISSN 0196-2892. https://doi.org/10.1109/TGRS.2011.2150230.

Description

Title: A Variational Stereo Method for the Three-Dimensional Reconstruction of Ocean Waves
Author/s:
  • Gallego Bonet, Guillermo
  • Yezzi, Anthony
  • Fedele, Francesco
  • Benetazzo, Alvise
Item Type: Article
Título de Revista/Publicación: Ieee Transactions on Geoscience And Remote Sensing
Date: November 2011
ISSN: 0196-2892
Volume: 49
Subjects:
Faculty: E.T.S.I. Telecomunicación (UPM)
Department: Señales, Sistemas y Radiocomunicaciones
UPM's Research Group: Tratamiento de Imágenes GTI
Creative Commons Licenses: Recognition - No derivative works - Non commercial

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Abstract

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.

More information

Item ID: 12373
DC Identifier: http://oa.upm.es/12373/
OAI Identifier: oai:oa.upm.es:12373
DOI: 10.1109/TGRS.2011.2150230
Deposited by: Memoria Investigacion
Deposited on: 17 Aug 2012 11:50
Last Modified: 29 May 2015 10:08
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