Title :
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
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;
Conference_Titel :
Image and Signal Processing, 2008. CISP '08. Congress on
Conference_Location :
Sanya, Hainan
Print_ISBN :
978-0-7695-3119-9
DOI :
10.1109/CISP.2008.773
