On computing the two-dimensional (2-D) type IV discrete cosine transform (2-D DCT-IV)

被引：3
|
作者：
Cheng, LZ [1 ]
机构：
[1] Natl Univ Def Technol, Dept Syst Sci & Math, Changsha 410073, Peoples R China
来源：
IEEE SIGNAL PROCESSING LETTERS | 2001年 / 8卷 / 08期
关键词：
discrete cosine transform; fast algorithm; multidimensional signal processing;
D O I：
10.1109/97.935741
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
A new fast N x M two-dimensional (2-D) type IV discrete cosine transform (2-D DCT-IV) algorithm is proposed by jointly using the one-dimensional (1-D) polynomial transform (1-D PT) and the N length-M 1-D DCTs. Compared to the known row-column method, the proposed algorithm requires less than one-half of number of multiplications and a smaller number of additions.
引用
收藏
页码：239 / 241
页数：3
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