Section: Software

ADT PICOVIN

Participants : Ronan Boitard, Laurent Guillo [contact person] , Thomas Guionnet, Tangi Poirier.

The ADT Picovin is a technological development action, which works closely with the project-team TEMICS. This is a development structure which gives its support to the project-team to integrate new and relevant algorithms into the state-of-the-art codec and to take part in standardization.

The ITU-T Study Group 16 (VCEG) and ISO/IEC JTC 1/SC 29/WG 11 (MPEG) have created in 2010 the Joint Collaborative Team on Video Coding (JCT-VC) in order to develop a new generation video coding standard that will further reduce by 50

In 2011, the ADT mainly focused on the improvement and integration of algorithms dedicated to intra prediction. A part of our work was integrated in the HM 1.0 and then submitted and presented as a proposal in Daegu during the 4th JCT-VC meeting in January 2011. Bit rate gains that we obtained were significant but to the detriment of encoding and decoding times. That is why, all along this year, the ADT tried to reach the best tradeoff between performances and encoding/decoding times. Our solution based on linear combination of template matching predictors has been improved by taking into account several shapes of template. The very last integration in the HM (HM4.0) shows that it performs well especially for the class “screen content”. A new very promising intra prediction method, Short Distance Intra Prediction (SDIP) is being tested as part of a Core Experiment in the HM 4.0. Once it is associated to our approach, bit save gains are additive. These results will be presented during the 7th JCT-VC meeting in Geneva in November 2011.

During 2011, the ADT also took part in cross checks which aims at evaluating and testing tools studied in core experiments. As part of cross checks the ADT has run 9 tests jointly with companies such as Technicolor, Mitsubushi, Huawei, Qualcom and Canon.

This ADT started in October 2008. It will go on for one more year through the ADT PICOVIN-P. During this year, one permanent engineer from the SED Rennes (development and experimentation department of INRIA Rennes) and one senior engineer specialized in video compression are involved in the ADT. It is supported by the technological development department of INRIA.