Research on side information generation algorithm for Wyner-Ziv video coding

SONG Bin; HE Hong; LIU Hai-hua; QIN Hao

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Research on side information generation algorithm for Wyner-Ziv video coding

更新时间：2024-10-14

- Research on side information generation algorithm for Wyner-Ziv video coding
- Vol. 31, Issue 12, Pages: 97-103(2010)
- 作者机构：
  
  西安电子科技大学ISN国家重点实验室
- 作者简介：
- 基金信息：
- DOI：
  CLC： TN919.81
- Published：2010
- 稿件说明：
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SONG Bin, HE Hong, LIU Hai-hua, et al. Research on side information generation algorithm for Wyner-Ziv video coding[J]. 2010, 31(12): 97-103.
DOI：

SONG Bin, HE Hong, LIU Hai-hua, et al. Research on side information generation algorithm for Wyner-Ziv video coding[J]. 2010, 31(12): 97-103. DOI：

摘要

在Wyner-Ziv视频编码系统中

针对生成边信息容易出现块效应和重影现象的问题

提出了一种基于原始图像相关性的重叠块双向运动补偿算法。在编码端计算原始图像相关性

并将相关性数据发送到解码端辅助运动估计

得到较精确的运动矢量

最后通过重叠块双向运动补偿生成边信息。实验结果表明

与现有的双向运动补偿内插算法相比

提出的算法生成边信息的平均PSNR可以提高1.5

且边信息的主观质量也有明显改善。

Abstract

To reduce the block artifacts and ghosting artifacts of side-information frame in Wyner-Ziv video coding

an overlapped block bi-directional motion compensation algorithm based on the original-image correlation was proposed.Firstly

the correlation of the original image in the encoder is calculated and sent to the decoder.Secondly

the correlation data is used to motion estimation in the decoder to get more accurate motion vector.Then the side information is gener-ated by bi-directional motion compensation.Compared with the existing algorithm

the proposed method can increase the average PSNR（peak signal-to-noise ratio） by 1.5~3dB

and also significantly improve the subjective quality of the side information.

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Related Author

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Related Institution

School of Electronic and Information Engineering,Sout ina University of Technology

西安电子科技大学通信工程学院

School of Telecommunications Engineering, Xidian University

College of Computer and Information Technology, Liaoning Normal University

State Key Laboratory for Novel Software Technology, Nanjing University

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