DocumentCode
3289832
Title
Generalized Discrete Cosine Transform
Author
Zhou, Jianqin ; Chen, Ping
Author_Institution
Telecommun. Sch., Hangzhou Dianzi Univ., Hangzhou, China
fYear
2009
fDate
16-17 May 2009
Firstpage
449
Lastpage
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.
Keywords
data compression; data encapsulation; discrete cosine transforms; image processing; data compression; digital signal processing; generalized discrete cosine transform; information hiding; Application software; Circuits; Computational modeling; Computer science; Data compression; Digital signal processing; Discrete Fourier transforms; Discrete cosine transforms; Discrete transforms; Fourier transforms; Discrete Fourier transform; discrete cosine transform; discrete sine transform;
fLanguage
English
Publisher
ieee
Conference_Titel
Circuits, Communications and Systems, 2009. PACCS '09. Pacific-Asia Conference on
Conference_Location
Chengdu
Print_ISBN
978-0-7695-3614-9
Type
conf
DOI
10.1109/PACCS.2009.62
Filename
5232383
Link To Document