Journal of Northeastern University Natural Science ›› 2017, Vol. 38 ›› Issue (11): 1543-1547.DOI: 10.12068/j.issn.1005-3026.2017.11.006

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2M-dimensional Vector Matrix DCT Integer Transform and Parallel Implementation

SANG Ai-jun1, CUI Xin-yu1, WANG Ting2, LI Xiao-ni1   

  1. 1. College of Telecommunication Engineering, Jilin University, Changchun 130022, China; 2. College of Electronic Engineering, Huai’an College of Information Technology, Huai’an 223003,China.
  • Received:2016-04-20 Revised:2016-04-20 Online:2017-11-15 Published:2017-11-13
  • Contact: SANG Ai-jun
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Abstract: In order to improve the efficiency of multi-dimensional data processing operations and reduce the computing time, a 2M-dimensional vector matrix DCT(2M-VMDCT) integer transform parallel processing method is presented, according to the 2M-dimensional vector matrix DCT integer transform theory. Firstly, the 2M-dimensional vector integer transform core matrix is introduced; Then, 2M-dimensional vector matrix integer DCT transform is applied to the video compression coding, and compared with the energy concentration of the multi-dimensional discrete cosine floating-point transform; Finally, by introducing the idea of multi-core parallel processing, the processing speed is improved. The simulation results show that 2M-dimensional vector matrix DCT integer transform has a better energy concentration and the parallel implementation improves its operation efficiency significantly.

Key words: 2M-dimensional vector matrix, parallel, DCT, integer transform, compression coding

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