Analytical rate model for compressed video considering impacts of spatial, temporal and amplitude resolutions

Zhan Ma, Felix C.A. Fernandes, Yao Wang

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Rate-control (RC) algorithm is highly desirable for networked video applications. Almost all existing RC methods are only adapting the quantization stepsize (QS) to meet the target bit rate at fixed video frame size (FS) and frame rate (FR) using the rate-quantization (R-Q) model. Recent mobile video applications demand more advanced rate adaptation with different FS, FR and QS, rather merely quantization adjustment, to meet rapid wireless network bandwidth switch. Towards this goal, it requires an accurate rate model with respect to the FS, FR and QS. Hence, we investigate the impacts of spatial, temporal and amplitude resolution (STAR) on the bit rate of a compressed video. We propose a rate model as the product of power functions of the FS, FR and QS, respectively. The proposed rate model is analytically tractable, requiring only four content dependent parameters. The same model works for different coding scenarios (including scalable and non-scalable video, temporal prediction using either hierarchical B or IPPP structure, etc.) with very high accuracy using both H.264/AVC and HEVC. Using the proposed rate model and a quality model, we show how to optimize the STAR for a given rate constraint, which is important for both encoder rate control and network video adaptation.

Original languageEnglish (US)
Title of host publicationElectronic Proceedings of the 2013 IEEE International Conference on Multimedia and Expo Workshops, ICMEW 2013
DOIs
StatePublished - Nov 29 2013
Event2013 IEEE International Conference on Multimedia and Expo Workshops, ICMEW 2013 - San Jose, CA, United States
Duration: Jul 15 2013Jul 19 2013

Publication series

NameElectronic Proceedings of the 2013 IEEE International Conference on Multimedia and Expo Workshops, ICMEW 2013

Other

Other2013 IEEE International Conference on Multimedia and Expo Workshops, ICMEW 2013
CountryUnited States
CitySan Jose, CA
Period7/15/137/19/13

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Keywords

  • H.264/AVC
  • HEVC
  • Rate model
  • quantization
  • scalable video coding
  • spatial resolution
  • temporal resolution

ASJC Scopus subject areas

  • Computer Graphics and Computer-Aided Design
  • Computer Vision and Pattern Recognition

Cite this

Ma, Z., Fernandes, F. C. A., & Wang, Y. (2013). Analytical rate model for compressed video considering impacts of spatial, temporal and amplitude resolutions. In Electronic Proceedings of the 2013 IEEE International Conference on Multimedia and Expo Workshops, ICMEW 2013 [6618414] (Electronic Proceedings of the 2013 IEEE International Conference on Multimedia and Expo Workshops, ICMEW 2013). https://doi.org/10.1109/ICMEW.2013.6618414