Title
A pyramid vector quantizer chip for HDTV applications
Abstract
The quantization process in bit-rate reduction for video coding has been taken into account. Because, at least in theory, vector quantization obtains better performance than scalar quantization, a pyramid vector quantizer has been analysed. Some figures of performance have been estimated by Monte Carlo simulation and, after analysing the problem of vector formation, directly on a typical video coding scheme. In the past, a single-chip dedicated processor for implementation of the PVQ was presented with the conclusion that the allowed quantization sample rate was no greater than 16 kHz. In this work ASIC-oriented modifications of the base algorithm are described and an ASIC design for the PVQ is presented. The architecture of the integrated circuit was obtained by means of the systolic macrocell approach. A system throughput greater than 70 MSa/s was allowed that extends the range of application of the PVQ up to HDTV digital video coding.
Year
DOI
Venue
1997
10.1002/ett.4460080208
EUROPEAN TRANSACTIONS ON TELECOMMUNICATIONS
Keywords
Field
DocType
chip
High-definition television,Computer science,Electronic engineering,Application-specific integrated circuit,Coding (social sciences),Digital television,Vector quantization,Pyramid,Quantization (signal processing),Macrocell
Journal
Volume
Issue
ISSN
8
2
1120-3862
Citations 
PageRank 
References 
0
0.34
7
Authors
5
Name
Order
Citations
PageRank
Fabio Bellifemine1137787.34
Romualdo Picco261.82
Roberto Roncella311127.03
Roberto Saletti48620.89
Pierangelo Terreni58014.18