Design of novel piecewise uniform scalar quantizer for Gaussian memoryless source

Simple Solution for Designing the Piecewise Linear Scalar Companding Quantizer for Gaussian Source

To overcome the difficulties in determining an inverse compressor function for a Gaussian source, which appear in designing the nonlinear optimal companding quantizers and also in the nonlinear optimal companding quantization procedure, in this paper a piecewise linear compressor function based on the first derivate approximation of the optimal compressor function is proposed. We show that the ...

Design of Fixed and Adaptive Companding Quantizer with Variable-Length Codeword for Memoryless Gaussian Source

The problem we address in this paper is the design of a quantizer that in comparison to the classical fixed-rate scalar quantizers provides more sophisticated bit rate reduction while restricting the class of quantizers to be scalar. We propose a switched variable-length code (VLC) optimal companding quantizer composed of two optimal companding scalar quantizers, the inner and the outer one, bo...

Encoder Design for Switched Piecewise Uniform Vector Quantization of the Memoryless Two-dimensional Laplacian Source

Abstract. In this paper switched piecewise uniform vector quantization of two-dimensional memoryless Laplacian source is asymptotically analyzed for the case where the power of input signal varies in a wide range. One possible solution for encoder design is given for the same quantizer. The presented encoder is a compromise between memory space and number of logical circuits. Uniform quantizer ...

Optimal nearly uniform scalar quantizer design for wavelet coding

An algorithm for uniform vector quantizer design

A vector quantizer maps a k-dimensional vector into one of a finite set of output vectors or “points”. Although certain lattices have been shown to have desirable properties for vector quantization applications, there are as yet no algorithms available in the quantization literature for building quantizers based on these lattices. An algorithm for designing vector quantizers based on the root l...