Section: Partnerships and Cooperations

International Initiatives

Inria Associate Teams Not Involved in an Inria International Labs

• Title: Graph-based Omnidirectional video Processing

• International Partner (Institution - Laboratory - Researcher):

  • Ecole Polytechnique Fédérale de Lausanne (Switzerland) - LTS4 - Pascal Frossard

• Start year: 2017

• See also: http://people.rennes.inria.fr/Thomas.Maugey/wp/projects/gop/

• Due to new camera types, the format of the video data has become more complex than simple 2D images or videos as it was the case a few years ago. In particular, the omnidirectional cameras provide pixels on a whole sphere around a center point and enable a vision in 360°. In addition to the fact that the data size explodes with such cameras, the inherent structure of the acquired signal fundamentally differs from the 2D images, which makes the traditional video codec obsolete. In parallel of that, an important effort of research has been lead recently, especially at EPFL, to develop new processing tools for signals lying on irregular structures (graphs). It enables in particular to build efficient coding tools for new types of signals. The proposed research project will actually study how graphs can be built for defining a suitable structure on one or several 360° videos and then used for compression.

  The collaboration between SIROCCO (Inria) and LTS4 (EPFL) has been very active in the recent years. However, only one-to-one collaboration was involved. When opening these new ambitious research direction, the project GOP will involve more than two or three researchers, and build a bidirectional collaboration between different people of the SIROCCO and LTS4 teams.

Inria International Partners

Informal International Partners

We have international collaborations with:

• Reuben Farrugia, Prof. at the University of Malta, with whom we continue collaborating on light field super-resolution.The collaboration strated during the sabbatical year (Sept. 2015-Aug. 2016) he spent within the team.

• Ehsan Miandji and Prof.Jonas Unger from Linkoping Univ. with whom we collaborate on compressive sampling of light fields. Ehsan Miandji has spent 1.5 month (June- July 2017) within the team.

• Chiara Galdi and Jean Luc Dugelay, prof. at Eurecom, with whom we collaborate on the application of light fields to biometry. Chiara Galdi has spent one month in the team (April 2017).

• Ole Johanssen and Prof. Bastian Goldluecke, from Univ. of Konstanz, with whom we collaborate on scene flow estimation with deep learning. Ole Johanssen has spent one month (Nov. 20- Dec. 20, 2017) in the team.

• The study on guided image inpainting is carried out in collaboration with Prof. Pascal Frossard from EPFL (Ecole Polytechique Federal de Lausanne).