An adaptive motion compensation method using superimposed inter-frame signals

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• 作者：L.-M. Po ; K.-H. Ng ; X.-Y. Xu ; K.-W. Cheung…
• 关键词：Video coding ; Real time ; Motion compensation prediction ; Multi ; hypothesis ; Motion estimation
• 刊名：Journal of Real-Time Image Processing
• 出版年：2016
• 出版时间：March 2016
• 年：2016
• 卷：11
• 期：3
• 页码：487-506
• 全文大小：3,898 KB
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• 作者单位：L.-M. Po (1)
  K.-H. Ng (1)
  X.-Y. Xu (1)
  K.-W. Cheung (1)
  L.-T. Feng (1)
  
  1. Hong Kong, China
  
• 刊物类别：Computer Science
• 刊物主题：Image Processing and Computer Vision
  Multimedia Information Systems
  Computer Graphics
  Pattern Recognition
  Signal,Image and Speech Processing
  
• 出版者：Springer Berlin / Heidelberg
• ISSN：1861-8219

文摘

In theory, multi-hypothesis motion compensation prediction (MHMCP) can enhance the prediction quality of motion compensation prediction. Traditional MHMCP methods use fixed weightings for the linear combination of the multiple signal sources which may not be optimum. Moreover, MHMCP requires the transmission of more than one motion vector, which will increase the side information to be transmitted. We discovered that using estimated distortion ratio, a weighting pair can be estimated adaptively for the linear combination of two signal blocks to form a prediction block with a lower distortion. The proposed MCP method does not require the transmission of additional side information yet has a better prediction accuracy than conventional motion compensation prediction. In addition, the proposed method has relatively low algorithmic decision overhead. It can be implemented in hardware easily to support the realization of real time high-quality video coding.