The superscript u stands for user and may refer to either Alice, in which case the quantizer
Parameters that have an influence to performances are: the parameter of the [mu]-compression law , the number of switched quantizers
Ng, as well as the support regions [X.
We propose a three-level scalar quantizer
designed for variable length code-words (VLC) employing Huffman coding, since it is highly efficient when operating with low number of quantization levels .
Moreover, we have the following estimate for the quantizer
Q(s) is transfer function of ideal quantizer
The Discrete Cosine Transform has inputs in the range [-255, 255] and output signals in the range [-2048, 2047], providing enough accuracy even for the finest quantizer
C Batllo, "Asymptotic analysis of multiple description quantizers
," IEEE Transactions on Information Theory,vol.
Transformed sequences are independent and they are further coded separately by using quasi-logarithmic quantizers
with forward adaptation (quantizers
If only deterministic part of error of ideal quantizer
is investigated, mean error is the right parameter.
It has been found that multiple inverted files, obtained by multiple independent quantizers
(codebooks), are able to achieve practically good recall and speed.
The most common way of adaptation is the adaptation to the variance of the signal in which the frame sample variance calculated and one from a set of quantizers
In this paper we analyse two interconnected quantizers
with a different number of quantization levels.