东北大学学报:自然科学版 ›› 2017, Vol. 38 ›› Issue (11): 1543-1547.DOI: 10.12068/j.issn.1005-3026.2017.11.006

• 信息与控制 • 上一篇    下一篇

2M维矢量矩阵DCT整数变换及并行实现

桑爱军1, 崔新宇1, 王艇2, 李晓妮1   

  1. (1. 吉林大学 通信工程学院, 吉林 长春130022; 2. 淮安信息职业技术学院 电子工程学院, 江苏 淮安223003)
  • 收稿日期:2016-04-20 修回日期:2016-04-20 出版日期:2017-11-15 发布日期:2017-11-13
  • 通讯作者: 桑爱军
  • 作者简介:桑爱军(1973-),女,山东莱州人,吉林大学教授.
  • 基金资助:
    吉林省科技发展计划与国际科技合作项目(20140414013GH); 吉林省教育厅“十三五”科学技术项目(吉教科合字[2016]第427号); 国家自然科学基金资助项目(51171041).

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
  • About author:-
  • Supported by:
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摘要: 为了大幅降低多维数据在计算上所消耗的时间,提高计算速度,在2M维矢量矩阵DCT(2M-VMDCT)整数变换理论的基础上,提出了将其进行并行处理的方法,增大时间优越性.首先介绍了2M维矢量整数变换核矩阵的推导过程;其次,将这种多维整数变换算法应用到多视角视频的压缩编码中,并与多维矢量离散余弦浮点变换进行能量集中性比较;最后,引入多核并行处理的思想,进一步提高处理速度.仿真结果表明, 2M-VMDCT整数变换有着非常优越的能量集中性,将其并行实现能使运算效率大幅提高.

关键词: 2M维矢量矩阵, 并行, DCT, 整数变换, 压缩编码

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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