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v1 (27-07-2009)

v2 (17-12-2009)

Stabilization of flicker-like effects in image sequences through local contrast correction

Julie Delon 1, Agnès Desolneux 2

(11/12/2009)

In this paper, we address the problem of the restoration of image sequences which have been affected by local intensity modifications (local contrast changes). Such artifacts can be encountered in particular in biological or archive film sequences, and are usually due to inconsistent exposures or sparse time sampling. In order to reduce such local artifacts, we introduce a local stabilization operator, called $\LS$, which acts as a time filtering on image patches and relies on a similarity measure which is robust to contrast changes. Thereby, this operator is able to take motion into account without resting on a sophisticated motion estimation procedure. The efficiency of the stabilization is shown on various sequences. The experimental results compares favorably with state of the art approaches.

1 :	Laboratoire traitement et communication de l'information (LTCI)
	CNRS : UMR5141 – Institut Télécom – Télécom ParisTech
2 :	Mathématiques appliquées Paris 5 (MAP5)
	CNRS : UMR8145 – Université Paris V - Paris Descartes

Domaine

:

Informatique/Traitement des images

hal-00407796, version 2

http://hal.archives-ouvertes.fr/hal-00407796

oai:hal.archives-ouvertes.fr:hal-00407796

Contributeur : Julie Delon <>

Soumis le : Jeudi 17 Décembre 2009, 11:08:01

Dernière modification le : Jeudi 17 Décembre 2009, 11:09:17