Rate Distribution Algorithm for Feedback-Free Distributed Video Coding

XIA Bei-dun; YANG Chun-ling

doi:10.3969/j.issn.0372-2112.2014.10.011

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Rate Distribution Algorithm for Feedback-Free Distributed Video Coding

更新时间：2025-07-16

- Rate Distribution Algorithm for Feedback-Free Distributed Video Coding
- Acta Electronica Sinica Vol. 42, Issue 10, Pages: 1938-1943(2014)
- 作者机构：
  
  华南理工大学电子与信息学院,广东,广州,510640
- 作者简介：
- 基金信息：
  
  National Natural Science Foundation of China (No.60972135)
- DOI：10.3969/j.issn.0372-2112.2014.10.011
  CLC： TN911.23
- Published：2014
- 稿件说明：
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XIA Bei-dun, YANG Chun-ling. Rate Distribution Algorithm for Feedback-Free Distributed Video Coding[J]. Acta Electronica Sinica, 2014, 42(10): 1938-1943.
DOI：

XIA Bei-dun, YANG Chun-ling. Rate Distribution Algorithm for Feedback-Free Distributed Video Coding[J]. Acta Electronica Sinica, 2014, 42(10): 1938-1943. DOI： 10.3969/j.issn.0372-2112.2014.10.011.

摘要

码率分配是无反馈分布式视频编码中的关键技术之一.本文研究编码端快速边信息生成方法

基于边信息和Wyner-Ziv帧各个位平面误码率

提出了一种编码端码率分配算法(Bitplane Error Probability based Encoder Rate Control

BEP_ERC).还提出在编码端精确估计拉普拉斯柯西混合分布(Laplace-Cauchy Mixture Distribution

LCMD)模型参数

和

的思想.实验表明本文算法与现有算法相比

率失真性能提升0.1～0.4dB

且降低了编码端计算复杂度.

Abstract

Rate control is one of the key technologies in feedback-free distributed video coding(DVC) systems.This paper studies the fast method to generate side information at encoder

based on the error probability of each bitplane between side information and Wyner-Ziv(WZ) information

a bitplane error probability based encoder rate control (BEP_ERC) algorithm is proposed.Also the idea of calculating the Laplace-Cauchy mixture distribution (LCMD) model parameter

and

at encoder is proposed.Experimental results show that the proposed BEP-ERC method has a higher rate-distortion (RD) performance than other existing feedback-free algorithms

with the increament gap of 0.1～0.4dB.In addition

its computation complexity is lower

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Related Institution

College of Information Engineering, Shenzhen University

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