| 基于多项式变换的二维整型离散余弦变换快速算法 |
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| 引用本文： | 李艳辉,李军.基于多项式变换的二维整型离散余弦变换快速算法[J].计算机应用,2006,26(7):1620-1622. |
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| 作者姓名： | 李艳辉 李军 |
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| 作者单位： | 暨南大学珠海学院,计算机系,广东,珠海,519070 |
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| 基金项目： | 暨南大学校科研和教改项目 |
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| 摘 要： | 提出了一种基于多项式变换的二维整型离散余弦变换（DCT）快速算法，利用多项式变换将二维DCT变换的计算转化为一系列一维DCT变换及其变换系数的求和运算，减少了乘法和加法的计算量；利用提升矩阵，实现了整型DCT变换，进一步提高了运算效率的同时，使信号可精确重构。
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| 关 键 词： | 视频压缩 快速算法 离散余弦变换 |
| 文章编号： | 1001-9081（2006）07-1620-03 |
| 收稿时间： | 2006-02-13 |
| 修稿时间： | 2006-02-132006-04-21 |
Fast algorithm for integer 2D-DCT based on polynomial transform |
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| LI Yan-hui,LI Jun.Fast algorithm for integer 2D-DCT based on polynomial transform[J].journal of Computer Applications,2006,26(7):1620-1622. |
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| Authors: | LI Yan-hui LI Jun |
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| Affiliation: | Department of Computer, Zhuhai School of Jinan University, Zhuhai Guangdong 519070, China |
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| Abstract: | A polynomial transform-based fast algorithm for integer 2D Discrete Cosine Transform(2D-DCT) was proposed.The 2D-DCT was transformed to some 1D-DCT and summing calculation by polynomial transform,so the computational complexity was reduced.The integer DCT was implemented by lifting matrix to promote efficiency,and the transformed signal could be reconstructed completely. |
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| Keywords: | video compression polynomial transform Discrete Cosine Transform(DCT) |
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