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Improved Bit Allocation Using Distortion for the CTU-Level Rate Control in HEVC

  • Xin Lu
  • , Bixing Zhou*
  • , Xuesong Jin
  • , Yanfeng Gu
  • *Corresponding author for this work
  • School of Electronics and Information Engineering, Harbin Institute of Technology
  • Harbin University of Commerce

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

Abstract

The research on rate control has always been a hot topic in video coding. Although H.265/HEVC is the latest video coding standard, the mismatch between the number of target bits and that of actual coding bits in the coding process still exists. A large number of experimental results have shown that the R-D model is superior to the R-λ model in terms of the matching degree of bit allocation. In this paper, a novel bit allocation method is proposed. First, the recursive Taylor expansion equation solving method is used to solve the rate-distortion (constrained problem) optimization equation, and then the R-D model is used to optimize the CTU-level target bit allocation.The simulation results indicate that the average bitrate error is only 0.19%, while the mean peak signal-to-noise ratio (MPSNR) increases by 0.14 dB.

Original languageEnglish
Title of host publicationCommunications, Signal Processing, and Systems - Proceedings of the 2018 CSPS Volume 1
Subtitle of host publicationCommunications
EditorsQilian Liang, Zhenyu Na, Xin Liu, Wei Wang, Jiasong Mu, Baoju Zhang
PublisherSpringer Verlag
Pages292-301
Number of pages10
ISBN (Print)9789811362637
DOIs
StatePublished - 2019
Externally publishedYes
EventInternational Conference on Communications, Signal Processing, and Systems, CSPS 2018 - Dalian, China
Duration: 14 Jul 201816 Jul 2018

Publication series

NameLecture Notes in Electrical Engineering
Volume515
ISSN (Print)1876-1100
ISSN (Electronic)1876-1119

Conference

ConferenceInternational Conference on Communications, Signal Processing, and Systems, CSPS 2018
Country/TerritoryChina
CityDalian
Period14/07/1816/07/18

Keywords

  • Bit allocation
  • HEVC
  • R-D model
  • Rate control

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