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
王慧桥,康南生
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WANG Hui-qiao,KANG Nan-sheng
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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
王慧桥,康南生. 一种运动估计的自适应菱形算法[J]. 计算机工程与应用, 2007, 43(26): 79-80.
WANG Hui-qiao,KANG Nan-sheng. Adaptive diamond algorithm of motion estimation[J]. Computer Engineering and Applications, 2007, 43(26): 79-80.
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