The Research of Lossless Data Compression Based on a Virtual Information Source
Yang Guo · Dianzi xuebao · 2003
An idea of virtual information source and the formation of data compression,based on a virtual information source is put forward and a general virtual information source Y of long character bunch of 0 and 1 is set up.Then the model of the virtual information source Y is established by neural network and the lossless data compression based on virtual information source is constructed with the model and an integer function.The experiments show that the compression ratio achieved maybe is 3∶1.The data compression embodies the idea of modeling of a virtual information source.It differs from the old entropy coding(lossless) and can compress some data which have been compressed by the old entropy coding.Some examples of data compression of high compression ratio and hifi can be obtained by combined wavelet coding with the compression method.