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Variational Stereo Imaging of Oceanic Waves with Statistical Constraints

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Pertenece a: Archivo Digital UPM  

Descripción: An image processing observational technique for the stereoscopic reconstruction of the wave form of oceanic sea states is developed. The technique incorporates the enforcement of any given statistical wave law modeling the quasi Gaussianity of oceanic waves observed in nature. The problem is posed in a variational optimization framework, where the desired wave form is obtained as the minimizer of a cost functional that combines image observations, smoothness priors and a weak statistical constraint. The minimizer is obtained combining gradient descent and multigrid methods on the necessary optimality equations of the cost functional. Robust photometric error criteria and a spatial intensity compensation model are also developed to improve the performance of the presented image matching strategy. The weak statistical constraint is thoroughly evaluated in combination with other elements presented to reconstruct and enforce constraints on experimental stereo data, demonstrating the improvement in the estimation of the observed ocean surface.

Autor(es): Gallego Bonet, Guillermo -  Yezzi, Anthony -  Fedele, Francesco -  Benetazzo, Alvise - 

Id.: 55220566

Idioma: eng  - 

Versión: 1.0

Estado: Final

Tipo:  application/pdf - 

Palabras claveIngeniería de Puertos y Costas - 

Tipo de recurso: info:eu-repo/semantics/article  -  Artículo  -  PeerReviewed  - 

Tipo de Interactividad: Expositivo

Nivel de Interactividad: muy bajo

Audiencia: Estudiante  -  Profesor  -  Autor  - 

Estructura: Atomic

Coste: no

Copyright: sí

: http://creativecommons.org/licenses/by-nc-nd/3.0/es/

Formatos:  application/pdf - 

Requerimientos técnicos:  Browser: Any - 

Relación: [IsBasedOn] IEEE Transactions on Image Processing, ISSN 1057-7149, 2013-11-26, Vol. 22, N. 11
[References] http://oa.upm.es/10723/1/2013_IEEE_TIP_Gallego_et_al.pdf
[References] http://dx.doi.org/10.1109/TIP.2013.2271118
[References] info:eu-repo/semantics/altIdentifier/doi/10.1109/TIP.2013.2271118
[References] info:eu-repo/grantAgreement/EC/FP7/246565

Fecha de contribución: 30-may-2015

Contacto:

Localización:


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