Schloss Dagstuhl - Leibniz-Zentrum für Informatik GmbH Schloss Dagstuhl - Leibniz-Zentrum für Informatik GmbH scholarly article en Lu, Xin; Martin, Graham R. https://www.dagstuhl.de/oasics License: Creative Commons Attribution 3.0 Unported license (CC-BY 3.0)
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URN: urn:nbn:de:0030-drops-42744
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Improved Rate Control Algorithm for Scalable Video Coding

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Abstract

In the Scalable Video Coding (SVC) standard, a multi-layer based structure is utilised to support scalability. However in the latest Joint Scalable Video Model (JSVM) reference software, the rate control algorithm is implemented only in the base layer, and the enhancement layers are not equipped with a rate control scheme. In this work, a novel rate control algorithm is proposed for when inter-layer prediction is employed. Firstly, a Rate-Quantisation (R-Q) model, which considers the coding properties of different prediction modes, is described. Secondly, an improved Mean Absolute Difference (MAD) prediction model for the spatial enhancement layers is proposed, in which the encoding results from the base layer are used to assist the linear MAD prediction in the spatial/CGS enhancement layers. Simulation results show that, on average, rate control accuracy is maintained to within 0.07%. Compared with the default JVT-G012 rate control scheme employed in SVC, the proposed rate control algorithm achieves higher coding efficiency, namely an improvement of up to 0.26dB in PSNR and a saving of 4.66% in bitrate.

BibTeX - Entry

@InProceedings{lu_et_al:OASIcs:2013:4274,
  author =	{Xin Lu and Graham R. Martin},
  title =	{{Improved Rate Control Algorithm for Scalable Video Coding}},
  booktitle =	{2013 Imperial College Computing Student Workshop},
  pages =	{73--81},
  series =	{OpenAccess Series in Informatics (OASIcs)},
  ISBN =	{978-3-939897-63-7},
  ISSN =	{2190-6807},
  year =	{2013},
  volume =	{35},
  editor =	{Andrew V. Jones and Nicholas Ng},
  publisher =	{Schloss Dagstuhl--Leibniz-Zentrum fuer Informatik},
  address =	{Dagstuhl, Germany},
  URL =		{http://drops.dagstuhl.de/opus/volltexte/2013/4274},
  URN =		{urn:nbn:de:0030-drops-42744},
  doi =		{10.4230/OASIcs.ICCSW.2013.73},
  annote =	{Keywords: Inter-layer prediction, MAD prediction, Rate control, Scalable Video Coding (SVC), SVC extension of H.264/AVC}
}

Keywords: Inter-layer prediction, MAD prediction, Rate control, Scalable Video Coding (SVC), SVC extension of H.264/AVC
Seminar: 2013 Imperial College Computing Student Workshop
Issue date: 2013
Date of publication: 14.10.2013


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