With the increasing use of multimedia technologies, video coding requires higher performance as well as new features. To address this need, the latest ITU-T video coding standard, H.264, has been developed. The motion compensation algorithm is the key of the improvements over H.263+. This paper proposes an H.264-based algorithm which does not require the motion vectors to be transmitted. It extends previous results obtained in the H.263+ context. The main purpose of this work is to check whether our procedure of reestimating the motion vectors at the receiver is compatible with the initial H.264 scheme efficiency. It is shown that this property is obtained at some cost in terms of bit rate for comparable PSNR, but that our new H.264-based scheme has about the same performance level as the plain H.263+ coder. This is essentially a preliminary work, which shows that the most sensitive part or the bit stream can be removed, thus allowing new robust coders to be developed.
['A. Ouled Zaid', 'Michel Kieffer', 'C.M. Lee', 'Pierre Duhamel']
Robust video transmission using H.264 and real-valued BCH frames