北京邮电大学学报

  • EI核心期刊

北京邮电大学学报 ›› 2007, Vol. 30 ›› Issue (4): 74-77.doi: 10.13190/jbupt.200704.74.lihs

• 论文 • 上一篇    下一篇

一种基于运动模式识别的视频对象编码算法

黎洪松,许保华   

  1. (北京师范大学 信息科学与技术学院, 北京 100875)
  • 收稿日期:2006-09-05 修回日期:2007-03-28 出版日期:2007-08-30 发布日期:2007-08-30
  • 通讯作者: 黎洪松

An Object-based Video Coding Using Motion Pattern Recognition

LI Hong-song,XU Bao-hua   

  1. (College of Information Science and Technology, Beijing Normal University, Beijing 100875, China)
  • Received:2006-09-05 Revised:2007-03-28 Online:2007-08-30 Published:2007-08-30
  • Contact: LI Hong-song

摘要:

针对块匹配运动估计补偿(ME+MC)算法的不足,提出了一种基于自组织特征映射(SOM)的运动模式识别(MPR)算法,应用于会议电视的视频对象编码. 为了进一步提高SOM算法的性能,提出了频率敏感自组织特征映射(FSSOM)算法. 实验结果表明,FSSOM-MPR算法较ME+MC算法具有更好的编码性能,在压缩比为180∶1时,重建视频图像的平均峰值信噪比(PSNR)有3.3 dB的改善.

关键词: 运动估计补偿, 模式识别, 自组织特征映射, 视频对象编码

Abstract:

To improve the performance of block matching algorithm in motion estimation and motion complement (ME+MC),a motion pattern recognition (MPR) algorithm based on selforganizing feature maps (SOM) is proposed and tested in object-based conference video coding. A frequency sensitive self-organizing feature maps (FSSOM) algorithm is proposed to improve the SOM algorithm’s performance. Experimental results show that FSSOM-MPR algorithm has better coding performances than ME+MC algorithm. When the compression ratio is 180∶1, the peak signal to noise ratio(PSNR) improvement of reconstructed video images is about 3.3 dB.

Key words: motion estimation and motion complement, motion pattern recognition, self-organizing feature maps, object-based video coding

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