计算机应用 ›› 2005, Vol. 25 ›› Issue (12): 2798-2799.
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摘要: 简要介绍了单指令多数据(Single-Istruction Multiple-Data,SIMD)指令系统,并用该技术对H.264中的整数离散余弦变换(Discrete Cosine Transform,DCT)、量化、插值和运动估计等模块进行了优化,实验结果表明优化后程序的编码速率可达到30fps左右,比未优化时速度提高了6~8倍。
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