摘要
作为视频编码领域的最新标准,H.264比以前的标准有着更好的编码效率。然而却使得编码器的计算复杂度急剧增加,在模式选择和运动估计部分尤为突出。论文提出了一种新方法,主要包括块合并、中止判别准则、改进的DS和快速亚象素搜索算法,在保持高信噪比和低比特率的同时,有效地降低了编码器复杂度。
As the latest standard in video codec field,H.264 can achieve considerably higher coding efficiency than previous standards.Unfortunately this comes at a cost in drastically increased complexity at the encoder mainly due to motion estimation and mode decision.In this paper,we propose a new scheme based on block combination,early termination,fined DS,and fast subpel motion estimation.The proposed algorithm can reduce the complexity considerably while maintaining similar PSNR and bit rate.
出处
《计算机工程与应用》
CSCD
北大核心
2005年第33期71-73,102,共4页
Computer Engineering and Applications
