计算机工程与应用 ›› 2007, Vol. 43 ›› Issue (26): 79-80.

• 学术探讨 • 上一篇    下一篇

一种运动估计的自适应菱形算法

王慧桥,康南生   

  1. 中国科学院 合肥智能机械研究所,合肥 230031
    中国科学技术大学 信息科学技术学院,合肥 230027
  • 收稿日期:1900-01-01 修回日期:1900-01-01 出版日期:2007-09-11 发布日期:2007-09-11
  • 通讯作者: 王慧桥

Adaptive diamond algorithm of motion estimation

WANG Hui-qiao,KANG Nan-sheng   

  1. Institute of Intelligent Machines,Chinese Academy of Sciences,Hefei 230031,China
    School of Information Science and Technology,University of Science and Technology of China,Hefei 230027,China
  • Received:1900-01-01 Revised:1900-01-01 Online:2007-09-11 Published:2007-09-11
  • Contact: WANG Hui-qiao

摘要: 在菱形搜索算法的基础上,依据图像序列的运动矢量的时空相关性和中心偏移特性,首先对宏块进行类型划分、设定阀值,进一步提出了初始搜索点的预测。实验证明,该算法在保证图像质量的同时,大大提高了搜索速度。

关键词: 运动估计, 菱形搜索, 相关性

Abstract: Proposes a new search algorithm which according to space-time correlation of video sequence motion vector and center-biased character on the basis of DS search algorithm.First of all,the algorithm classifies the macro-block types and establishes qualificatory numerical value,then presents the prediction of initial searching point.The experiment proves that the algorithm improves greatly searching speed on the condition of guaranteeing video quality.

Key words: motion estimation, diamond search, correlation