DocumentCode
856597
Title
Multiplicative complexity of the two-dimensional discrete Fourier transform DFT (2n; 2)
Author
Ma, Wann-Jiun ; Yang, Dong
Author_Institution
South China Inst. of Technol., Guangzhou
Volume
24
Issue
9
fYear
1988
fDate
4/28/1988 12:00:00 AM
Firstpage
559
Lastpage
561
Abstract
Shows that the two-dimensional discrete Fourier transform DFT (2 n; 2) can be transformed into a series of distinct second versions of the discrete cosine transform DCT. As a result of the minimal number of real multiplications over the field Q to compute the length 2n second version DCT, the authors derive the minimum number of real multiplications over the field Q necessary to compute a two-dimensional discrete Fourier transform for 2 n×2n real input data
Keywords
fast Fourier transforms; Multiplicative complexity; discrete cosine transform; minimal number; real multiplications; two-dimensional discrete Fourier transform;
fLanguage
English
Journal_Title
Electronics Letters
Publisher
iet
ISSN
0013-5194
Type
jour
Filename
19569
Link To Document