摘要
针对H.264,利用几种预测方式得到最优的预测中心和设置阈值,提出了一个新的搜索算法,在信噪比和比特率变化很小的情况下可以很大程度的提高整个编码器的运算速度。从仿真可以看出这个运动估计算法有效的降低了编码器的复杂度,提高了搜索效率。
In this paper,a combined fast motion estimation algorithm with prediction center and thresholds for early termination is proposed.Experiments on the proposed method show the PSNR and bit rate only have a small change and the speed of encoder has a large improvement.Meanwhile,the proposed method decreases the complexity of the encoder successfully and improves the search efficiency.
出处
《电视技术》
北大核心
2009年第S1期40-42,共3页
Video Engineering
