
Accession Number : ADA187829
Title : Solution of the LloydMax Quantizer Parameters by the Method of Successive Substitution.
Descriptive Note : Final research rept. Oct 86Nov 87,
Corporate Author : NAVAL POSTGRADUATE SCHOOL MONTEREY CA
Personal Author(s) : Moose, Paul H ; AlBassiouni, AbdelAziz M
PDF Url : ADA187829
Report Date : 12 Nov 1987
Pagination or Media Count : 59
Abstract : The method of successive substitution is shown applicable to solve for the classical minimum distortion quantizer parameters. The method is self converging and parameters can be calculated to any desired accuracy. The minimum distortion quantizer parameters, as well as parameters based on other criterion such as quantizers for signal detection, minimum risk quantizers and quantizers for LMMS estimation can be solved by Max's trial and error technique. There are also many other approximation methods to calculate the quantizer parameters. This report applies the method of successive substitution and its modifications to solve for the LloydMax quantizer parameters. It is more accurate and computationally more efficient than the previously reported methods. It is shown to easily generate 7 bit (128 level) optimum quantization. The LloydMax minimum mean square distortion quantizer problem deals with transforming a random variable X of differentiable probability density function f(x) into the Nlevel discrete random variable Y.
Descriptors : *QUANTIZATION, *PARAMETRIC ANALYSIS, ACCURACY, DETECTION, DISTORTION, ERRORS, MEAN, OPTIMIZATION, RISK, SIGNALS, SUBSTITUTES, CONVERGENCE, RANDOM VARIABLES
Subject Categories : Statistics and Probability
Distribution Statement : APPROVED FOR PUBLIC RELEASE