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Techniques for efficient DCT/IDCT implementation on generic GPU

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4 Author(s)
Bo Fang ; Dept. of Inf. Sci. & Electron. Eng., Zhejiang Univ., Hangzhou, China ; Guobin Shen ; Shipeng Li ; Huifang Chen

The emergence of programmable graphics processing units (GPU) has led to increasing interest in off-loading numerically intensive computations on to graphics hardware. DCT/IDCT is widely adopted in modern image/video compression standards and is usually one of the most computationally expensive parts. We present several techniques for efficient implementation of DCT/IDCT on generic programmable GPU, using direct matrix multiplication. Our experimental results demonstrate that the speed of IDCT on a GPU using the proposed techniques can well exceed that on a CPU with MMX optimization.

Published in:

Circuits and Systems, 2005. ISCAS 2005. IEEE International Symposium on

Date of Conference:

23-26 May 2005