Kadi Bouatouch - Academia.edu (original) (raw)

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Papers by Kadi Bouatouch

Proceedings of the 13th International Joint Conference on Computer Vision, Imaging and Computer Graphics Theory and Applications, 2018

Nowadays flashes are commonly used in photography: they bring light and sharpness to images. It i... more Nowadays flashes are commonly used in photography: they bring light and sharpness to images. It is very tempting to use flash lights in cinema, to take profit of controlled light as photographers may do. But using flashes with video recording is not as easy as in photography. Actually, flashes cause many temporal artifacts in video recordings, especially with high speed CMOS cameras equipped with electronic rolling shutters. This paper proposes a video recording method that uses periodic strobbed illumination sources together with any electronic rolling shutter camera, even without any synchronization device between the camera and the controlled lights. The objective is to avoid recording artifacts by controlling the timings and periods of the flash lights, and then reconstructing images using rows that correspond to the same flash instant. We will show that our method can be easily applied to photometric stereo.

Applications of Digital Image Processing XXXVIII, 2015

11th Pacific Conference onComputer Graphics and Applications, 2003. Proceedings.

Image and Vision Computing, 2005

Pour mettre en oeuvre des methodes de synthese d'images realistes, il est indispensable de si... more Pour mettre en oeuvre des methodes de synthese d'images realistes, il est indispensable de simuler le comportement reel de la lumiere ; en particulier, les interactions entre la matiere et la lumiere constituent le coeur de ce probleme. Cet article propose d'aborder les aspects algorithmiques des approches basees sur un calcul d'illumination globale et principalement les methodes de radiosite.

The Visual Computer, 2015

Proceedings of the symposium on Computational Aesthetics - CAE '17, 2017

Proceedings of the 2018 ACM on International Conference on Multimedia Retrieval - ICMR '18, 2018

IEEE Transactions on Visualization and Computer Graphics

IEEE transactions on visualization and computer graphics, 2018

Multivariate generalized Gaussian distributions (MGGDs) have aroused a great interest in the imag... more Multivariate generalized Gaussian distributions (MGGDs) have aroused a great interest in the image processing community thanks to their ability to describe accurately various image features, such as image gradient fields. However, so far their applicability has been limited by the lack of a transformation between two of these parametric distributions. In this paper, we propose a novel transformation between MGGDs, consisting of an optimal transportation of the second-order statistics and a stochastic-based shape parameter transformation. We employ the proposed transformation between MGGDs for a color transfer and a gradient transfer between images. We also propose a new simultaneous transfer of color and gradient, which we apply for image color correction.

2016 Digital Media Industry & Academic Forum (DMIAF), 2016

Proceedings of the 11th Joint Conference on Computer Vision, Imaging and Computer Graphics Theory and Applications, 2016

Proceedings of the 13th International Joint Conference on Computer Vision, Imaging and Computer Graphics Theory and Applications, 2018

Nowadays flashes are commonly used in photography: they bring light and sharpness to images. It i... more Nowadays flashes are commonly used in photography: they bring light and sharpness to images. It is very tempting to use flash lights in cinema, to take profit of controlled light as photographers may do. But using flashes with video recording is not as easy as in photography. Actually, flashes cause many temporal artifacts in video recordings, especially with high speed CMOS cameras equipped with electronic rolling shutters. This paper proposes a video recording method that uses periodic strobbed illumination sources together with any electronic rolling shutter camera, even without any synchronization device between the camera and the controlled lights. The objective is to avoid recording artifacts by controlling the timings and periods of the flash lights, and then reconstructing images using rows that correspond to the same flash instant. We will show that our method can be easily applied to photometric stereo.

Applications of Digital Image Processing XXXVIII, 2015

11th Pacific Conference onComputer Graphics and Applications, 2003. Proceedings.

Image and Vision Computing, 2005

Pour mettre en oeuvre des methodes de synthese d'images realistes, il est indispensable de si... more Pour mettre en oeuvre des methodes de synthese d'images realistes, il est indispensable de simuler le comportement reel de la lumiere ; en particulier, les interactions entre la matiere et la lumiere constituent le coeur de ce probleme. Cet article propose d'aborder les aspects algorithmiques des approches basees sur un calcul d'illumination globale et principalement les methodes de radiosite.

The Visual Computer, 2015

Proceedings of the symposium on Computational Aesthetics - CAE '17, 2017

Proceedings of the 2018 ACM on International Conference on Multimedia Retrieval - ICMR '18, 2018

IEEE Transactions on Visualization and Computer Graphics

IEEE transactions on visualization and computer graphics, 2018

Multivariate generalized Gaussian distributions (MGGDs) have aroused a great interest in the imag... more Multivariate generalized Gaussian distributions (MGGDs) have aroused a great interest in the image processing community thanks to their ability to describe accurately various image features, such as image gradient fields. However, so far their applicability has been limited by the lack of a transformation between two of these parametric distributions. In this paper, we propose a novel transformation between MGGDs, consisting of an optimal transportation of the second-order statistics and a stochastic-based shape parameter transformation. We employ the proposed transformation between MGGDs for a color transfer and a gradient transfer between images. We also propose a new simultaneous transfer of color and gradient, which we apply for image color correction.

2016 Digital Media Industry & Academic Forum (DMIAF), 2016

Proceedings of the 11th Joint Conference on Computer Vision, Imaging and Computer Graphics Theory and Applications, 2016

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