Traffic and quality characterization of the H.264/AVC scalable video coding extension

Geert Van Der Auwera, Martin Reisslein, Prasanth T. David, Lina Karam

Research output: Contribution to journalArticle

19 Citations (Scopus)

Abstract

The recent scalable video coding (SVC) extension to the H.264/AVC video coding standard has unprecedented compression efficiency while supporting a wide range of scalability modes, including temporal, spatial, and quality (SNR) scalability, as well as combined spatiotemporal SNR scalability. The traffic characteristics, especially the bit rate variabilities, of the individual layer streams critically affect their network transport. We study the SVC traffic statistics, including the bit rate distortion and bit rate variability distortion, with long CIF resolution video sequences and compare them with the corresponding MPEG-4 Part 2 traffic statistics. We consider (i) temporal scalability with three temporal layers, (ii) spatial scalability with a QCIF base layer and a CIF enhancement layer, as well as (iii) quality scalability modes FGS and MGS. We find that the significant improvement in RD efficiency of SVC is accompanied by substantially higher traffic variabilities as compared to the equivalent MPEG-4 Part 2 streams. We find that separately analyzing the traffic of temporal-scalability only encodings gives reasonable estimates of the traffic statistics of the temporal layers embedded in combined spatiotemporal encodings and in the base layer of combined FGS-temporal encodings. Overall, we find that SVC achieves significantly higher compression ratios than MPEG-4 Part 2, but produces unprecedented levels of traffic variability, thus presenting new challenges for the network transport of scalable video.

Original languageEnglish (US)
Article number164027
JournalAdvances in Multimedia
Volume2008
DOIs
StatePublished - 2008

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Scalable video coding
Scalability
Statistics
Image coding

ASJC Scopus subject areas

  • Computer Science(all)

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Traffic and quality characterization of the H.264/AVC scalable video coding extension. / Van Der Auwera, Geert; Reisslein, Martin; David, Prasanth T.; Karam, Lina.

In: Advances in Multimedia, Vol. 2008, 164027, 2008.

Research output: Contribution to journalArticle

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