Title :
Wavelet coding method using small block DCT
Author :
Wang, Jia ; Zhang, Wenjun ; Yu, Songyu
Author_Institution :
Inst. of Image Commun. & Inf. Process., Shanghai Jiaotong Univ., China
fDate :
5/10/2001 12:00:00 AM
Abstract :
A novel wavelet image compression method is introduced. The method applies the small block discrete cosine transform to certain parts of the wavelet coefficients before quantisation and coding. Experiments show that the new method achieves good results with only a negligible increase in total complexity
Keywords :
data compression; discrete cosine transforms; image coding; quantisation (signal); wavelet transforms; complexity; quantisation; small block DCT; small block discrete cosine transform; wavelet coding method; wavelet coefficients; wavelet image compression method;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:20010428
