Successive Refinement of Motion Compensated Interpolation for Transform-Domain Distributed Video Coding

Abdel-Bassir Abou-Elailah (1) , Frederic Dufaux (1) , Joumana Farah (2) , Marco Cagnazzo (1) , Beatrice Pesquet-Popescu (1)

1 LTCI - Laboratoire Traitement et Communication de l'Information
2 Holy-Spirit University of Kaslik [Jounieh]

In distributed video coding, the estimation of the side information at the decoder plays a key role in the final rate-distortion performance of the codec. The side information is commonly generated by motion-compensated temporal interpolation of the neighboring reference frames. In this paper , we propose a successive refinement after the decoding of each DCT subband to improve the accuracy of motion compensation between reference frames, in order to obtain a new side information estimation closer to the original Wyner-Ziv frame. The experimental results show that the proposed scheme can achieve up to 0.9 dB of improvement in rate-distortion performance for a GOP size of 2 and 2.4 dB for a GOP size of 8 for sequences containing high motion with respect to state-of-the-art techniques.

Domaines: Traitement des images [eess.IV]; Traitement du signal et de l'image [eess.SP]; Traitement du signal et de l'image [eess.SP]

Abdel-Bassir Abou-Elailah, Frederic Dufaux, Joumana Farah, Marco Cagnazzo, Beatrice Pesquet-Popescu. Successive Refinement of Motion Compensated Interpolation for Transform-Domain Distributed Video Coding. European Signal Processing Conference (EUSIPCO 2011), EURASIP, Aug 2011, Barcelona, Spain. ⟨hal-01436393⟩