MPEG-2 video compression

Author

Tudor, P.N.

Author_Institution

Res. & Dev. Dept., BBC, Tadworth, UK

Volume

7

Issue

6

fYear

1995

fDate

12/1/1995 12:00:00 AM

Firstpage

257

Lastpage

264

Abstract

MPEG-2 is an extension of the MPEG-1 international standard for digital compression of audio and video signals. MPEG-1 was designed to code progressively scanned video at bit rates up to about 1.5 Mbit/s for applications such as CD-I (compact disc interactive). MPEG-2 is directed at broadcast formats at higher data rates; it provides extra algorithmic ´tools´ for efficiently coding interlaced video, supports a wide range of bit rates and provides for multichannel surround sound coding. This tutorial paper introduces the principles used for compressing video according to the MPEG-2 standard, outlines the general structure of a video coder and decoder, and describes the subsets (´profiles´) of the toolkit and the sets of constraints on parameter values (´levels´) defined to date.

Keywords

audio coding; television standards; video codecs; video coding; 1.5 Mbit/s; CD-I; MPEG-1 international standard; MPEG-2 standard; MPEG-2 video compression; SNR profiles; algorithmic tools; audio signal compression; bit rates; compact disc interactive; digital compression; interlaced video coding; multichannel surround sound coding; parameter values; progressively scanned video; video codec; video coder; video decoder; video signal compression;

fLanguage

English

Journal_Title

Electronics & Communication Engineering Journal

Publisher

iet

ISSN

0954-0695

Type

jour

DOI

10.1049/ecej:19950606

Filename

490024