Fast codec with high compression ratio and minimum required resources

Abstract From the Canadian patent

This invention provides a novel single-pass and multi-pass synchronized encoder and decoder, performing order(s) of magnitude faster data compression and decompression, at any compression ratio with the higher or the same perceived and measured decompressed image quality in comparison with the best state-of-the-art compression methods, using order(s) of magnitude less system resources (processor complexity, memory size consumed power, bus bandwith, data latency). These features are achieved using novel direct and inverse nonstationary filters for the recusive octave direct and inverse subband transformation, novel simple context modeling and symbol probability estimation using a …