Design of Asymmetric Multiple Description Lattice Vector Quantizers

Suhas N. Diggavi, N. J. A. Sloane and Vinay A. Vaishampayan 

AT&T Shannon Laboratories,
180 Park Avenue, Bldg 103,
Florham Park NJ 07932, USA. 

Email: {suhas,njas,vinay}@research.att.com

Abstract

We consider the design of asymmetric multiple description lattice quantizers
that cover the entire spectrum of the distortion profile, ranging from
symmetric or balanced to successively refinable.
We present a solution to a labeling problem which is an important part of
the construction, along with a general design procedure.
This procedure is illustrated using a Z^2 lattice.
We also evaluate its rate-distortion performance and compare
it to known information theoretic bounds.


A different version of this paper appeared in:
Proceedings DCC 2000: Data Compression Conference (Snowbird, 2000)
pages 490-499, 2000. Edited by J. A. Storer and M. Cohn.
IEEE Computer Society, Los Alamitos, CA


For the full version see
http://NeilSloane.com/doc/DCC_2000.pdf  or
http://NeilSloane.com/doc/DCC_2000.ps