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计算机工程 ›› 2010, Vol. 36 ›› Issue (3): 224-226.doi: 10.3969/j.issn.1000-3428.2010.03.075

• 多媒体技术及应用 • 上一篇    下一篇

DVC中基于亚像素MCI的边信息重建

卿粼波，何小海，吕 瑞

  

  1. (四川大学电子信息学院，成都 610064)
  • 收稿日期:1900-01-01 修回日期:1900-01-01 出版日期:2010-02-05 发布日期:2010-02-05

Side Information Reconstruction Based on Sub-pixel Motion Compensated Interpolation in Distributed Video Coding

QING Lin-bo, HE Xiao-hai, LV Rui   

  1. (College of Electronics and Information Engineering, Sichuan University, Chengdu 610064)
  • Received:1900-01-01 Revised:1900-01-01 Online:2010-02-05 Published:2010-02-05

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摘要： 为了提高边信息重建质量从而提升分布式视频编码的压缩性能，在引入一种基于整像素运动补偿内插(MCI)的边信息重建算法的基础上，提出基于1/2像素和基于1/4像素的亚像素MCI边信息重建算法。实验结果表明，2种算法能有效提高边信息质量，在不改变编码端复杂度的情况下，明显提升视频编码系统的率失真性能。

关键词: 分布式视频编码, 边信息, 运动补偿内插, 亚像素

Abstract: In order to enhance the coding performance of Distributed Video Coding(DVC) by improving the quality of side information reconstruction, this paper presents a side information reconstruction algorithm based on full-pixel Motion Compensated Interpolation(MCI). Two sub-pixel MIC algorithms based on 1/2-pixel and 1/4-pixel are proposed. Simulation results show that the two algorithms can improve the quality of the side information, and improves Rate Distortion(RD) performance of video coding system without increasing encoding complexity.

Key words: Distributed Video Coding(DVC), side information, Motion Compensated Interpolation(MCI), sub-pixel

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