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Circuits, Communications and Systems, Pacific-Asia Conference on (2009)
Chengdu, China
May 16, 2009 to May 17, 2009
ISBN: 978-0-7695-3614-9
pp: 449-452
ABSTRACT
The discrete cosine transform (DCT), introduced by Ahmed, Natarajan and Rao, has been used in many applications of digital signal processing, data compression and information hiding. There are four types of the discrete cosine transform. In simulating the discrete cosine transform, we propose a generalized discrete cosine transform with three parameters, and prove its orthogonality for some new cases. Finally, a new type of discrete cosine transform is proposed and its orthogonality is proved.
INDEX TERMS
Discrete Fourier transform, discrete sine transform, discrete cosine transform
CITATION
Jianqin Zhou, Ping Chen, "Generalized Discrete Cosine Transform", Circuits, Communications and Systems, Pacific-Asia Conference on, vol. 00, no. , pp. 449-452, 2009, doi:10.1109/PACCS.2009.62
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