Title :
Fast DCT algorithm with fewer multiplication stages
Author :
Jeong, Yeonsik ; Lee, Imgeun ; Kim, Hak Soo ; Park, Kyu Tae
Author_Institution :
Dept. of Electron. Eng., Yonsei Univ., Seoul, South Korea
fDate :
4/16/1998 12:00:00 AM
Abstract :
A novel fast DCT scheme with reduced multiplication stages and fewer additions and multiplications is proposed. The proposed algorithm is structured so that most multiplications tend to be performed at the final stage, which reduces the propagation error that could occur in the fixed-point computation. Minimisation of the multiplication stages can further decrease the error
Keywords :
discrete cosine transforms; image coding; mathematics computing; speech coding; fast DCT algorithm; multiplication stages minimisation; propagation error reduction;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19980533