摘要
论文在基于DCT-III/DST-III的IMDCT快速算法的原理上,给出了其在MPEG-1layer-III中的高效的实现方法,并给出了信号的流图。提出了一种改进的逆量化算法,对于数据存储空间受限的嵌入式系统,该算法可以快速高质量地实现逆量化。
The paper shows an efficient implementation of a new fast IMDCT algorithm based on DCT-Ⅲ/DST-Ⅲ.The complete signal flow graphs for the implementation arc also provided.At the same time,the paper proposes a modified re-quantization algorithm,which can be used to realize re-quantization efficiently in embedded system with data memory limited.
出处
《计算机工程与应用》
CSCD
北大核心
2006年第6期62-64,135,共4页
Computer Engineering and Applications
