摘要
本文介绍一种新的DCT计算方法 ,它以现有的DCT快速算法为基础 ,利用超长指令的并行特征来提高DCT计算的性能 .仿真结果表明 :该方法的运算速度比普通的DCT计算方法提高 73 % ,即便同快速算法相比 ,也可以提高 2
A new DCT computation algorithm is presented, which is based on existing fast DCT algorithm and fully utilizes the parallelism of very long instruction word (VLIW) architecture to achieve high speed performance. Simulation results show that this method can reduce more than 73% and 24% computing cycles, compared with normal and fast DCT computation algorithm respectively.
出处
《电子学报》
EI
CAS
CSCD
北大核心
2003年第7期1074-1077,共4页
Acta Electronica Sinica
基金
国家自然科学基金 (No 60 1 72 0 50 )
关键词
离散余弦变换
超长指令字
并行算法
Computer simulation
Parallel algorithms
Very long instruction word architecture
