Statistically uniform intra-block refresh algorithm for very low delay video communication

Rui SONG; Yang-li WANG; Ye HAN; Yun-song LI

doi:10.1631/jzus.C1200333

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Statistically uniform intra-block refresh algorithm for very low delay video communication

远程通信 | Updated：2022-12-09

- Statistically uniform intra-block refresh algorithm for very low delay video communication
- Statistically uniform intra-block refresh algorithm for very low delay video communication
- 信息与电子工程前沿（英文） 2013年14卷第5期页码：374-382
- Affiliations：
  
  State Key Laboratory of Integrated Service Networks, Xidian University, Xi'an 710071, China
- Author bio：
  
  [ "Rui SONG, E-mail: ruiScientif@gmail.com" ]
- Funds：
  
  Project partially supported by the Fundamental Research Funds for the Central Universities, and the 111 Project Program for Changjiang Scholars and Innovative Research Team in University (No. B08038), China
- DOI：10.1631/jzus.C1200333
  中图分类号： 10.1631/jzus.C1200333
- 收稿：2012-11-23，
  
  修回：2013-;4-;9，
  
  纸质出版：2013-05
- Accepted：
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Statistically uniform intra-block refresh algorithm for very low delay video communication[J]. 信息与电子工程前沿（英文）, 2013,14(5):374-382.

Rui SONG, Yang-li WANG, Ye HAN, et al. Statistically uniform intra-block refresh algorithm for very low delay video communication[J]. Frontiers of Information Technology & Electronic Engineering, 2013, 14(5): 374-382.
Statistically uniform intra-block refresh algorithm for very low delay video communication[J]. 信息与电子工程前沿（英文）, 2013,14(5):374-382. DOI： 10.1631/jzus.C1200333.

Rui SONG, Yang-li WANG, Ye HAN, et al. Statistically uniform intra-block refresh algorithm for very low delay video communication[J]. Frontiers of Information Technology & Electronic Engineering, 2013, 14(5): 374-382. DOI： 10.1631/jzus.C1200333.

摘要

Abstract

This paper focuses on the mechanism underlying the overall delay of a real-time video communication system from the time of capture at the encoder to the time of display at the decoder. A detailed analysis is presented to illustrate the delay problem. We then describe a statistically uniform intra-block refresh scheme for very low delay video communication. By scattering intra-blocks uniformly into continuous frames

the overall delay is significantly decreased

and object changes in the scene could be presented to the end user instantly. For comparison

the overall delay and the peak signal-to-noise ratio (PSNR) performance are tested. The experiment results show that an average of approximately 0.1 dB PSNR gain on average is obtained relative to random intra-macroblock refresh algorithm in H.264 JM

and the end-to-end delay performance is significantly improved.

关键词

Keywords

references

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