DocumentCode
1444973
Title
Improved lossless image coder based on suboptimal, adaptive multiplicative autoregressive models
Author
Das, M.
Author_Institution
Dept. of Electr. & Syst. Eng., Oakland Univ., Rochester, MI, USA
Volume
34
Issue
21
fYear
1998
fDate
10/15/1998 12:00:00 AM
Firstpage
2019
Lastpage
2021
Abstract
An improved lossless image coder is introduced which is based on suboptimal, adaptive multiplicative autoregressive models. Basically the improvements result from the incorporation of three new elements: a backward block-by-block parameter estimator, a probability model for the residuals, and a contextual entropy coder. The results of a comparative experimental study indicate that on average the improved coder delivers ~7% higher compression than the old scheme
Keywords
autoregressive processes; data compression; entropy; image coding; parameter estimation; probability; SAMAR coder; adaptive multiplicative autoregressive models; backward block-by-block parameter estimator; compression scheme; contextual entropy coder; lossless image coder; probability model; suboptimal adaptive AR models;
fLanguage
English
Journal_Title
Electronics Letters
Publisher
iet
ISSN
0013-5194
Type
jour
DOI
10.1049/el:19981410
Filename
729875
Link To Document