A Reconfigurable DCT Architecture for Multimedia Applications

Author

Li, Zhenwei ; Peng, Silong ; Ma, Hong ; Wang, Qiang

Author_Institution

Inst. of Autom., Chinese Acad. of Sci., Beijing

Volume

1

fYear

2008

fDate

27-30 May 2008

Firstpage

360

Lastpage

364

Abstract

A low power reconfigurable DCT architecture is proposed, which can be run at three transform precision levels for different demands. Using the character of energy distribution of the DCT matrix after 2D DCT operation, we selected the best DCT bases which achieve considerable power reduction in DCT operation with minimum image quality degradation. The reconfigurable architecture can achieve power saving ranging from 22% to 41% for different precision levels and very useful for image video compression and transmission applications.

Keywords

data compression; discrete cosine transforms; multimedia communication; video coding; discrete cosine transform; energy distribution; image video compression; image video transmission; low-power reconfigurable DCT architecture; minimum image quality degradation; multimedia application; power reduction; power saving; Computational complexity; Computer architecture; Discrete cosine transforms; Energy consumption; Image coding; Image quality; Signal processing; Switches; Symmetric matrices; Video compression;

fLanguage

English

Publisher

ieee

Conference_Titel

Image and Signal Processing, 2008. CISP '08. Congress on

Conference_Location

Sanya, Hainan

Print_ISBN

978-0-7695-3119-9

Type

conf

DOI

10.1109/CISP.2008.773

Filename

4566179