Title :
A Low-Power and High-Quality Cordic Based Loeffler DCT
Author :
Sun, Chi-Chia ; Heyne, Benjamin ; Ruan, Shanq-Jang ; Juergen Goetze
Author_Institution :
Dept. of Electron. Eng., Nat. Taiwan Univ. of Sci. & Technol., Taipei
Abstract :
In this paper, a low-power and high-quality preserving DCT architecture is presented. It is obtained by optimizing the Loeffler DCT based on the Cordic algorithm. The experimental results show that the proposed DCT architecture occupies 19% of the area and consumes about 16% of the power compared to the original Loeffler DCT. Additionally the good transformation quality is retained. In this regard, the proposed Cordic based Loeffler DCT is very suitable for low-power and high-quality CODECs, especially for battery-based systems
Keywords :
codecs; digital arithmetic; discrete cosine transforms; logic design; low-power electronics; Cordic algorithm; DCT architecture; Loeffler DCT; battery-based systems; codecs; Algorithm design and analysis; Codecs; Computational complexity; Computer architecture; Discrete cosine transforms; Flow graphs; Hardware; Information processing; Iterative algorithms; Signal processing algorithms;
Conference_Titel :
VLSI Design, Automation and Test, 2006 International Symposium on
Conference_Location :
Hsinchu
Print_ISBN :
1-4244-0179-8
Electronic_ISBN :
1-4244-0180-1
DOI :
10.1109/VDAT.2006.258132
