Title :
Hybrid predictive/VQ lossless image coding
Author :
Ogunbona, P.O. ; Wang, J. ; Naghdy, G.
Author_Institution :
Dept. of Electr. & Comput. Eng., Wollongong Univ., NSW, Australia
fDate :
3/16/1995 12:00:00 AM
Abstract :
A multiplicative autoregressive model is used in a lossless predictive image coding scheme. The use of vector quantisation (VQ) for compression of the model coefficients leads to an improved compression ratio. Both image adaptive and universal codebooks are considered. A comparative analysis of the new coder is presented through simulation results
Keywords :
autoregressive processes; image coding; vector quantisation; compression ratio; hybrid predictive/VQ coding; image adaptive codebooks; lossless predictive image coding; model coefficients compression; multiplicative autoregressive model; universal codebooks; vector quantisation;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19950339
