Title :
Rate-distortion bound for a class of non-Gaussian sources with memory
Author :
Zhang, Ya-Qin ; Pickholtz, Raymond L. ; Loew, Murray H.
fDate :
9/1/1993 12:00:00 AM
Abstract :
The rate-distortion performance of a class of non-Gaussian source with memory is studied. The source model is generated from a correlated Gaussian source through a memoryless transform, which actually constitutes a special class of the frequently-used Gibbs model in speech and image processing applications. Its entropy and a rate-distortion bound are evaluated to obtain further insights into this class of source models. Several examples are also given to illustrate the usefulness and tightness of the rate-distortion bound
Keywords :
data compression; entropy; image processing; information theory; speech analysis and processing; Gibbs model; correlated Gaussian source; entropy; image processing; memoryless transform; non-Gaussian sources with memory; rate-distortion bound; source model; Data compression; Distortion measurement; Entropy; Image coding; Image processing; Nonlinear distortion; Random processes; Rate distortion theory; Rate-distortion; Speech processing;
Journal_Title :
Information Theory, IEEE Transactions on
