In recent years, the study of the dynamics of ocean waves via stereo vision systems has focused on investigating sea states with wavelengths in the range of 0.01 m to 1 m. In this work, we present two modern stereo variational approaches, viz. the disparity and graph methods, for the estimation of the ocean surface displacements over larger spatial scales of 10 to 100 m. The disparity method estimates the disparity between images as an intermediate step toward retrieving the depth of the waves with respect to the cameras, and the graph method estimates the ocean surface displacements directly in 3-D space. The pros and cons of both methods are compared and their performance is evaluated using experimental video data collected at an offshore platform in the Black Sea.
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ASME 2013 32nd International Conference on Ocean, Offshore and Arctic Engineering
June 9–14, 2013
Nantes, France
Conference Sponsors:
- Ocean, Offshore and Arctic Engineering Division
ISBN:
978-0-7918-5539-3
PROCEEDINGS PAPER
Two Variational Stereo Methods for Space-Time Measurements of Ocean Waves Available to Purchase
Guillermo Gallego,
Guillermo Gallego
Universidad Politécnica de Madrid, Madrid, Spain
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Anthony Yezzi,
Anthony Yezzi
Georgia Institute of Technology, Atlanta, GA
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Francesco Fedele,
Francesco Fedele
Georgia Institute of Technology, Atlanta, GA
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Alvise Benetazzo
Alvise Benetazzo
National Research Council, Venice, Italy
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Guillermo Gallego
Universidad Politécnica de Madrid, Madrid, Spain
Anthony Yezzi
Georgia Institute of Technology, Atlanta, GA
Francesco Fedele
Georgia Institute of Technology, Atlanta, GA
Alvise Benetazzo
National Research Council, Venice, Italy
Paper No:
OMAE2013-10553, V005T06A041; 10 pages
Published Online:
November 26, 2013
Citation
Gallego, G, Yezzi, A, Fedele, F, & Benetazzo, A. "Two Variational Stereo Methods for Space-Time Measurements of Ocean Waves." Proceedings of the ASME 2013 32nd International Conference on Ocean, Offshore and Arctic Engineering. Volume 5: Ocean Engineering. Nantes, France. June 9–14, 2013. V005T06A041. ASME. https://doi.org/10.1115/OMAE2013-10553
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