High-fidelity application-centric evaluation framework for vehicular networks
Proceedings of the fourth ACM international workshop on Vehicular ad hoc networks
On burst transmission scheduling in mobile TV broadcast networks
IEEE/ACM Transactions on Networking (TON)
A novel server-side proxy caching strategy for large-scale multimedia applications
Journal of Parallel and Distributed Computing
A control theoretic scheme for efficient video transmission over IEEE 802.11e EDCA WLANs
ACM Transactions on Multimedia Computing, Communications, and Applications (TOMCCAP)
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In the domain of digital video coding, new technologies and solutions are emerging in a fast pace, targeting the needs of the evolving multimedia landscape. One of the questions that arises is how to assess these different video coding technologies in terms of compression efficiency. In this paper, several compression schemes are compared by means of peak signal-to-noise ratio (PSNR) and just noticeable difference (JND). The codecs examined are XviD 0.9.1 (conform to the MPEG-4 Visual Simple Profile), DivX 5.1 (implementing the MPEG-4 Visual Advanced Simple Profile), Windows Media Video 9, MC-EZBC and H.264/AVC AHM 2.0 (version JM 6.1 of the reference software, extended with rate control). The latter plays a key role in this comparison because the H.264/AVC standard can be considered as the de facto benchmark in the field of digital video coding. The obtained results show that H.264/AVC AHM 2.0 outperforms current proprietary and standards-based implementations in almost all cases. Another observation is that the choice of a particular quality metric can influence general statements about the relation between the different codecs.