| 一种基于H.264的快速运动估计算法 |
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| 引用本文： | 刘玉娜,樊丰,朱维乐.一种基于H.264的快速运动估计算法[J].电视技术,2009,33(Z1). |
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| 作者姓名： | 刘玉娜 樊丰 朱维乐 |
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| 作者单位： | 电子科技大学电子工程学院,四川,成都,610054 |
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| 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阚值,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.
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| 关 键 词： | H.264标准 运动估计 预测方式 搜索算法 |
A New Fast Motion Estimation Algorithm in H.264 Video Coding |
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| LIU Yu-na,FAN Feng,ZHU Wei-le.A New Fast Motion Estimation Algorithm in H.264 Video Coding[J].Tv Engineering,2009,33(Z1). |
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| Authors: | LIU Yu-na FAN Feng ZHU Wei-le |
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| Affiliation: | LIU Yu-na,FAN Feng,ZHU Wei-le(School of Electronic Engineering,University of Electronic Science and Technology of China,Chengdu 610054,China) |
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| Abstract: | 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. |
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| Keywords: | H 264 motion estimation prediction search algorithm |
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