Restoration of Videos Degraded by Local Isoplanatism Effects in the Near-Infrared Domain
Lemaitre, Magali (Universite de Bourgogne. Le2i Laboratory (Le Creusot, França))
Laligant, Olivier (Universite de Bourgogne. Le2i Laboratory (Le Creusot, França))
Blanc-Talon, Jacques (CEP, DGA (Arcueil, França))
Mériaudeau, Fabrice (Universite de Bourgogne. Le2i Laboratory (Le Creusot, França))

Fecha:	2008
Resumen:	When observing a scene horizontally at a long distance in the near-infrared domain, degradations due to atmospheric turbulence often occur. In our previous work, we presented two hybrid methods to restore videos degraded by such local perturbations. These restoration algorithms take advantages of a space-time Wiener filter and a space-time regularization by the Laplacian operator. Wiener and Laplacian regularization results are mixed differently depending on the distance between the current pixel and the nearest edge point. It was shown that a gradation between Wiener and Laplacian areas improves results quality, so that only the algorithm using a gradation will be used in this article. In spite of a significant improvement in the obtained images quality, our restoration results greatly depend on the segmentation image used in the video processing. We then propose a method to select automatically the best segmentation image.
Derechos:	Aquest document està subjecte a una llicència d'ús Creative Commons. Es permet la reproducció total o parcial i la comunicació pública de l'obra, sempre que no sigui amb finalitats comercials, i sempre que es reconegui l'autoria de l'obra original. No es permet la creació d'obres derivades.
Lengua:	Anglès
Documento:	Article ; recerca ; Versió publicada
Materia:	Atmospheric turbulence ; Local degradation ; Automatic segmentation ; Adaptive restoration
Publicado en:	ELCVIA : Electronic Letters on Computer Vision and Image Analysis, V. 7 n. 3 (2008) p. 83-92, ISSN 1577-5097

Adreça original: https://elcvia.cvc.uab.es/article/view/v7-n3-lemaitre-laligant-blanc-telo-et-al
Adreça alternativa: https://raco.cat/index.php/ELCVIA/article/view/150401
DOI: 10.5565/rev/elcvia.185

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