摘要
为了提高DCT变换的速度,文中对面向OpenCL模型的DCT并行化过程进行了研究,首先分析了GPU和OpenCL的特性和优势,研究了传统DCT变换的工作原理,然后针对CPU和GPU两种不同平台对DCT变换进行测试和结果分析,实验结果表明基于OpenCL模型的并行化能够有效地提高DCT变换的速度。
In order to improve speed up the DCT inversion, this paper analyzed characteristics and advantages of GPU and Open CL; and researched working principle of traditional DCT inversion, then tested algorithm on the different platforms, the results shows that parallelization can effectively improve the fast DCT performance.
出处
《电脑知识与技术(过刊)》
2013年第9X期6007-6011,共5页
Computer Knowledge and Technology
关键词
GPU处理器
OpenCL模型
离散余弦变化
并行化
Graphic Processing Unit(GPU)
Open Computing Language(OpenCL)
Discrete Cosine Transform(DCT)
Parallelization