基于运动方向预测的快速运动估计算法

利用序列图像的相邻块运动矢量的高度相关性和运动矢量的中心偏移特性,提出一种基于运动方向预测的快速运动估计算法。设计4种方向性模板,根据参考运动矢量预测出图像块的运动情况,根据不同的运动方向选择对应的方向性模板进行搜索。实验结果表明,该算法在速度和准确性方面都优于传统的快速运动估计算法。

Fast Motion Estimation Algorithm Based on Moving Direction Prediction

This paper presents a new fast motion estimation algorithm based on moving direction prediction, called Moving Direction Prediction (MDP) algorithm in which the high correlation of adjacently blocks' motion vectors and the center-biased characteristic of motion vectors in image sequences are used. The algorithm designs four kinds of patterns and selects patterns to process the image according to its motion direction predicted by referenced motion vectors. Experimental results show that the algorithm excels other traditional algorithms in speed and veracity.