Title :
Quantisation step selection schemes in JPEG2000
Author :
Long, M. ; Tai, H.-M. ; Yang, Songping
Author_Institution :
Dept. of Electr. Eng., Tulsa Univ., OK, USA
fDate :
6/6/2002 12:00:00 AM
Abstract :
Modified quantisation step selection schemes for the uniform dead-zone scalar quantisation as used in Part I of the JPEG2000 standard are presented. Effects of these quantisation schemes on the lossy compression performance of 5/3 integer wavelet transforms are evaluated. The experiment is carried out in the JPEG2000 framework. Similar consideration may be applied to the real wavelet transforms for lossy image compression
Keywords :
data compression; image coding; quantisation (signal); transform coding; wavelet transforms; JPEG2000 standard; image compression; integer wavelet transforms; lossy compression performance; quantisation step selection schemes; uniform dead-zone scalar quantisation;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:20020375
