H.265/HEVC frame-level bitrate allocation algorithm considering video content

Wei LI; Fu-zheng YANG; Peng REN

doi:10.11959/j.issn.1000-436x.2015239

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H.265/HEVC frame-level bitrate allocation algorithm considering video content

academic paper | 更新时间：2024-06-05

- H.265/HEVC frame-level bitrate allocation algorithm considering video content
- Journal on Communications Vol. 36, Issue 9, Pages: 76-81(2015)
- 作者机构：
  
  1. 西安理工大学印刷包装与数字媒体学院，陕西西安 710048
  2. 西安电子科技大学通信工程学院，陕西西安 710071
- 作者简介：
- 基金信息：
  
  The National Natural Science Foundation of China(61371089);The National Natural Science Foundation of China(61072102);The 111 Project(B08038);The School Scientific Research Project(108-256211407)
- DOI：10.11959/j.issn.1000-436x.2015239
  CLC： TN911.72
- Online First：2015-09，
  
  Published：25 September 2015
- 稿件说明：
移动端阅览
Wei LI, Fu-zheng YANG, Peng REN. H.265/HEVC frame-level bitrate allocation algorithm considering video content[J]. Journal on Communications, 2015, 36(9): 76-81.
DOI：

Wei LI, Fu-zheng YANG, Peng REN. H.265/HEVC frame-level bitrate allocation algorithm considering video content[J]. Journal on Communications, 2015, 36(9): 76-81. DOI： 10.11959/j.issn.1000-436x.2015239.

摘要

为了保证一定视频质量下编码器输出的码率符合给定的目标码率，提出一种考虑视频内容特性的H.265/HEVC 帧层码率分配算法。首先从率失真理论分析的角度推导出影响输出码率的主要因素，然后根据视频编码原理，预测出帧内容复杂度参数，从而建立一种更有效的帧层码率分配算法。实验结果表明，所提算法可以使帧层目标码率与编码码率保持更好的一致性，且重构视频质量平均提高了0.103 dB。

Abstract

In order to guarantee the consistency between the coded bits and target bits

a frame-level bitrate allocation al-gorithm considering the content feature was proposed for H.265/HEVC codec.The main factors to affect the output bi-trate were first discussed by the analysis of rate-distortion theory.According to the video coding principle

the related pa-rameter was then predicted to reflect the content complexity.Finally

an efficient frame-level bitrate allocation algorithm was constructed.Experimental results show that the target bits and coded bits keep a better consistency

and the recon-struction video quality is improved by 0.103 dB in average.

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references

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HJONTEGAARD G . Calculation of average PSNR differences be-tween RD-curves [EB/OL ] . http://wftp3.itu.int/av-arch/video-site/0104_Aus/VCEG-M33.doc http://wftp3.itu.int/av-arch/video-site/0104_Aus/VCEG-M33.doc .

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