Adaptive motion estimation algorithm based on motion characteristics.
Yun Zeng · Computer Engineering and Applications Journal · 2007
A novel adaptive motion estimation algorithm based on motion characteristics is proposed in this paper.Two approaches are adopted to improve the estimation performance.First,an adaptive model for starting point prediction is presented.Based on the variation of the correlation between the adjacent blocks,the parameters of the model can be modified correspondingly to minish the difference between the prediction result and the best motion vector.Second,an alterable search pattern is introduced to improve the searching efficiency by adjusting its size and shape according to the motion characteristics of the blocks.Experiment results show that the proposed algorithm greatly outperforms other popular fast motion estimation algorithms in terms of both PSNR and search speed.