Context conditioning and run-length coding for hybrid, embedded progressive image coding
W. Berghom, Tobias Boskamp, Markus Lang, Heinz‐Otto Peitgen · IEEE Transactions on Image Processing · 2001
An analysis of spatial context conditioning and run-length coding in embedded progressive, wavelet-based image coding is presented. The analysis shows that run-length coding of certain context subsequences is superior to pure entropy coding, both in terms of coding performance and of execution speed. Based on these considerations, a novel, intuitive context conditioning scheme using a spatial distance model to describe the statistics of significant coefficients is proposed. The results for the proposed coding scheme are competitive to the best coding schemes found in the literature.