东北大学学报(自然科学版) ›› 2004, Vol. 25 ›› Issue (12): 1157-1160.DOI: -

• 论著 • 上一篇    下一篇

附加可变尺寸运动估计的FGS视频编码

王赜;林娜;王光兴   

  1. 东北大学信息科学与工程学院;东北大学信息科学与工程学院;东北大学信息科学与工程学院 辽宁沈阳 110004
  • 收稿日期:2013-06-24 修回日期:2013-06-24 出版日期:2004-12-15 发布日期:2013-06-24
  • 通讯作者: Wang, Z.
  • 作者简介:-
  • 基金资助:
    国家高技术研究发展计划项目(2002AA712051)

Improved FGS video coding with additional variable size block motion estimation

Wang, Ze (1); Lin, Na (1); Wang, Guang-Xing (1)   

  1. (1) Sch. of Info. Sci. and Eng., Northeastern Univ., Shenyang 110004, China
  • Received:2013-06-24 Revised:2013-06-24 Online:2004-12-15 Published:2013-06-24
  • Contact: Wang, Z.
  • About author:-
  • Supported by:
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摘要: 基于增强层运动估计的精细粒度伸缩编码(FGS),可以在整体上提高常规FGS编码的效率·但在低码率段,编码效率还有待进一步提高·提出了一种基于附加可变尺寸运动估计的FGS视频编码框架,在基本层运动估计部分附加了可变尺寸运动估计来改善常规运动估计的效果·同时在FGS编码中引入了基于宏块的参考帧选择技术和增强层的目标码率比例截断法·仿真实验表明,这种编码方法提高了低码率段的编码效率,在整个增强层码率范围内都优于传统的FGS编码·

关键词: 视频压缩, 精细粒度伸缩编码, 变尺寸运动估计, MPEG4

Abstract: The efficiency of Fine Granularity Scalability (FGS) video coding can be improved obviously when motion estimation was added in enhancement layer. A FGS video coding framework with additional Variable Size Block Motion Estimation (VSBM) in base layer was specified. Macro-block based reference selection method and scale truncation technique of FGS bit-stream were both adopted to optimize the video coding efficiency. The results of experiments show that our framework is superior to the baseline FGS on the full range of variable bit-rates.

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