Patent ID: 7805012
Filing Date: 2010-09-28
Classification: H04N

Abstract:
1. A computer-implemented method of signal processing, comprising: receiving a plurality of digitized coefficients; determining a best-fit distribution of a general family of distributions for the plurality of digitized coefficients, the general family of distributions comprising a generalized gamma distribution having at least a first shape parameter, wherein the first shape parameter for the best-fit distribution is determined by obtaining, via one or more iterations, a global root value of a shape estimator equation that utilizes the plurality of digitized coefficients, wherein the iterations are globally-convergent to the global root value irrespective of a starting value of the first shape parameter, the global root value being the first shape parameter of the best-fit distribution; and providing a characterization of the digitized coefficients based upon the determined best-fit distribution, wherein the shape estimator equation is provided by one of  are the digitized coefficients,  denotes a derivative of M wherein the prior steps are performed by one or more computers.