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Improved lossless image coder based on suboptimal, adaptive multiplicative autoregressive models

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1 Author(s)
M. Das ; Dept. of Electr. & Syst. Eng., Oakland Univ., Rochester, MI, USA

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

Published in:

Electronics Letters  (Volume:34 ,  Issue: 21 )