Support Region of Semilogarithmic Quantizer for Laplacian Source

Zoran H. Peric; Sinisa B. Suzic; Tijana V. Delic; Nikola Simic

doi:10.5755/j01.eie.24.4.21481

Zoran H. Peric
Sinisa B. Suzic
Tijana V. Delic
Nikola Simic

DOI: https://doi.org/10.5755/j01.eie.24.4.21481

Keywords: Support region, Quantizer, Semiloga rithmic A law.

Abstract

The overall distortion of semilogarithmic A law quantizer is influenced by its support region, as well as parameter A. Current solutions require numerical determination of optimal support region and larger processing time, i.e. simple closed-form solutions for finding optimal values of these two parameters are not provided. In this paper, iterative and closed-form solutions for determination of the support region of semilogarithmic A law quantizer for Laplacian source, unite variance and a set of bit-rates 6 bits/sample−10 bits/sample are proposed. The performance of proposed solutions is compared to the optimal numerical results.

DOI: http://dx.doi.org/10.5755/j01.eie.24.4.21481