Multimedia systems and equipment - Quality assessment - Audio-video communication systems

specifies items to be measured by objective methods, methods of measurement together with measuring conditions, processing of the measured data and presentation of acquired information for objective assessment of end-to-end quality of audio-video communication systems over digital networks. The measurements are supposed to be conducted in a double-ended and a full reference. The systems are assumed to have electrical interface channels at the input and at the output of audio-video signals for objective assessment.

General Information

Status
Published
Publication Date
15-May-2003
Current Stage
PPUB - Publication issued
Start Date
15-Jul-2003
Completion Date
16-May-2003
Ref Project

Buy Standard

Technical report
IEC TR 62251:2003 - Multimedia systems and equipment - Quality assessment - Audio-video communication systems
English language
40 pages
sale 15% off
Preview
sale 15% off
Preview

Standards Content (Sample)

TECHNICAL IEC
REPORT
TR 62251
First edition
2003-05
Multimedia systems and equipment –
Quality assessment –
Audio-video communication systems
Reference number
IEC/TR 62251:2003(E)

---------------------- Page: 1 ----------------------
Publication numbering
As from 1 January 1997 all IEC publications are issued with a designation in the
60000 series. For example, IEC 34-1 is now referred to as IEC 60034-1.
Consolidated editions
The IEC is now publishing consolidated versions of its publications. For example,
edition numbers 1.0, 1.1 and 1.2 refer, respectively, to the base publication, the
base publication incorporating amendment 1 and the base publication incorporating
amendments 1 and 2.
Further information on IEC publications
The technical content of IEC publications is kept under constant review by the IEC,
thus ensuring that the content reflects current technology. Information relating to
this publication, including its validity, is available in the IEC Catalogue of
publications (see below) in addition to new editions, amendments and corrigenda.
Information on the subjects under consideration and work in progress undertaken
by the technical committee which has prepared this publication, as well as the list
of publications issued, is also available from the following:
• IEC Web Site (www.iec.ch)
• Catalogue of IEC publications
The on-line catalogue on the IEC web site (http://www.iec.ch/searchpub/cur_fut.htm)
enables you to search by a variety of criteria including text searches, technical
committees and date of publication. On-line information is also available on
recently issued publications, withdrawn and replaced publications, as well as
corrigenda.
• IEC Just Published
This summary of recently issued publications (http://www.iec.ch/online_news/
justpub/jp_entry.htm) is also available by email. Please contact the Customer
Service Centre (see below) for further information.
• Customer Service Centre
If you have any questions regarding this publication or need further assistance,
please contact the Customer Service Centre:
Email: custserv@iec.ch
Tel: +41 22 919 02 11
Fax: +41 22 919 03 00

---------------------- Page: 2 ----------------------
TECHNICAL IEC
REPORT
TR 62251
First edition
2003-05
Multimedia systems and equipment –
Quality assessment –
Audio-video communication systems
 IEC 2003  Copyright - all rights reserved
No part of this publication may be reproduced or utilized in any form or by any means, electronic or
mechanical, including photocopying and microfilm, without permission in writing from the publisher.
International Electrotechnical Commission, 3, rue de Varembé, PO Box 131, CH-1211 Geneva 20, Switzerland
Telephone: +41 22 919 02 11 Telefax: +41 22 919 03 00 E-mail: inmail@iec.ch  Web: www.iec.ch
PRICE CODE
Commission Electrotechnique Internationale
W
International Electrotechnical Commission
Международная Электротехническая Комиссия
For price, see current catalogue

---------------------- Page: 3 ----------------------
– 2 – TR 62251  IEC:2003(E)
CONTENTS
FOREWORD . 4
1 Scope . 5
2 References . 5
3 Terms and definitions . 6
4 Configuration for quality assessment . 6
4.1 Input and output channels. 6
4.2 Points of input and output terminals. 7
5 Video quality. 8
5.1 Introduction . 8
5.2 End-to-end tone reproduction . 9
5.3 End-to-end colour reproduction.11
5.4 End-to-end colour differences .12
5.5 End-to-end peak-signal to noise ratio (PSNR).16
5.6 End-to-end objective assessment of video quality.20
6 Audio quality.21
6.1 Perceived audio quality with full-reference signals .
...

Questions, Comments and Discussion

Ask us and Technical Secretary will try to provide an answer. You can facilitate discussion about the standard in here.