A Kind of High Speed and High Quality Embedded Zerotree Coding Algorithm for Hardware Implementation

In this paper,a kind of high speed and high quality embedded zerotree coding algorithm for hardware implementation was presented,significance map structure was simplified,and some redundance structure was reduced.Some useless zerotrees were minished and some isolation zeros not to be kept were cleared up so that efficiency of significance map coding rose.It improved image compression performance,reduced coding and decoding execution time.We designed the biorthogonal 9/7 wavelet basis based on lifting scheme so that it not only raised wavelet transform speed,but also ensured hardware implementation.The simulation experimentation showed that this method improved speed of wavelet transform and shortened time of coding and decoding.It raised image compression rate and improved quality of restructure image.