Improved ρ-domain rate control with accurate header size estimation

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

6 Scopus citations

Abstract

ρ-domain rate control has been shown to be a simple yet effective rate control approach for DCT-based hybrid video codecs. When it is applied to H.264/AVC, improvements need to be made because of the large amount of header information and the QP-dependent Rate Distortion Optimization (RDO). In this paper, we propose a novel rate model to estimate the size of header information accurately. We present a two-stage rate control algorithm which combines the proposed header rate model and the ρ-domain source model. In comparison to the original ρ-domain rate control algorithm without header size estimation, our scheme not only improves the PSNR of the decoded video, but also achieves the target bit rates more accurately.

Original languageEnglish
Title of host publication2011 IEEE International Conference on Acoustics, Speech, and Signal Processing, ICASSP 2011 - Proceedings
Pages813-816
Number of pages4
DOIs
StatePublished - 2011
Event36th IEEE International Conference on Acoustics, Speech, and Signal Processing, ICASSP 2011 - Prague, Czech Republic
Duration: 22 May 201127 May 2011

Publication series

NameICASSP, IEEE International Conference on Acoustics, Speech and Signal Processing - Proceedings
ISSN (Print)1520-6149

Conference

Conference36th IEEE International Conference on Acoustics, Speech, and Signal Processing, ICASSP 2011
Country/TerritoryCzech Republic
CityPrague
Period22/05/1127/05/11

Keywords

  • H.264/AVC
  • header estimation
  • header rate model
  • rate control

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