October 2017
Intermediate to advanced
790 pages
46h 35m
English
Content preview from Introduction to Data Compression, 5th Edition
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Chapter 10
Vector Quantization
Abstract
By grouping source outputs together and encoding them as a single block, we can obtain efficient lossy as well as lossless compression algorithms. Many of the lossless compression algorithms that we looked at took advantage of this fact. We can do the same with quantization. In this chapter, several quantization techniques that operate on blocks of data are described. We can view these blocks as vectors, hence the name “vector quantization.” We will describe several different approaches to vector quantization. We will explore how to design vector quantizers and how these quantizers can be used for compression.
Keywords
LBG quantization; Generalized Lloyd algorithm; Tree structured vector quantizer; ...
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