IEC_62330-2-2003.pdf

INTERNATIONALSTANDARDIEC62330-2First edition2003-05Helical-scan digital video cassette recordingsystem using 12,65 mm(0,5 in)magnetic tape Format HD-D5 Part 2:Compression formatReference numberIEC 62330-2:2003(E)LICENSED TO MECON Limited.-RANCHI/BANGALOREFOR INTERNAL USE AT THIS LOCATION ONLY,SUPPLIED BY BOOK SUPPLY BUREAU.Publication numberingAs from 1 January 1997 all IEC publications are issued with a designation in the60000 series.For example,IEC 34-1 is now referred to as IEC 60034-1.Consolidated editionsThe 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,thebase publication incorporating amendment 1 and the base publication incorporatingamendments 1 and 2.Further information on IEC publicationsThe technical content of IEC publications is kept under constant review by the IEC,thus ensuring that the content reflects current technology.Information relating tothis publication,including its validity,is available in the IEC Catalogue ofpublications(see below)in addition to new editions,amendments and corrigenda.Information on the subjects under consideration and work in progress undertakenby the technical committee which has prepared this publication,as well as the listof publications issued,is also available from the following:IEC Web Site(www.iec.ch)Catalogue of IEC publicationsThe 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,technicalcommittees and date of publication.On-line information is also available onrecently issued publications,withdrawn and replaced publications,as well ascorrigenda.IEC Just Published This summary of recently issued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 CustomerService Centre(see below)for further information.Customer Service CentreIf you have any questions regarding this publication or need further assistance,please contact the Customer Service Centre:Email:custserviec.chTel:+41 22 919 02 11Fax:+41 22 919 03 00LICENSED TO MECON Limited.-RANCHI/BANGALOREFOR INTERNAL USE AT THIS LOCATION ONLY,SUPPLIED BY BOOK SUPPLY BUREAU.INTERNATIONALSTANDARDIEC62330-2First edition2003-05Helical-scan digital video cassette recordingsystem using 12,65 mm(0,5 in)magnetic tape Format HD-D5 Part 2:Compression format IEC 2003 Copyright-all rights reservedNo part of this publication may be reproduced or utilized in any form or by any means,electronic ormechanical,including photocopying and microfilm,without permission in writing from the publisher.International Electrotechnical Commission,3,rue de Varemb,PO Box 131,CH-1211 Geneva 20,SwitzerlandTelephone:+41 22 919 02 11 Telefax:+41 22 919 03 00 E-mail:inmailiec.ch Web:www.iec.chXFor price,see current cataloguePRICE CODECommission Electrotechnique InternationaleInternational Electrotechnical Commission LICENSED TO MECON Limited.-RANCHI/BANGALOREFOR INTERNAL USE AT THIS LOCATION ONLY,SUPPLIED BY BOOK SUPPLY BUREAU.2 62330-2 IEC:2003(E)CONTENTSFOREWORD.41Scope.62Normative references.63Acronyms.64Video processing.84.1Overview.84.2Video signal.94.3Block formation.114.4SMBG distribution.164.5DCT.194.6Categorization and weighting.204.7CG shuffling.244.8RMB shuffling.274.9Quantization.294.10Rate control.294.11VLC.294.12Packing.33Annex A(normative)Overlapped block DCT coding for robustness.44Figure 1 Block diagram of outline about video processing.9Figure 2 Transmitting samples of 1 080i system.10Figure 3 Transmitting samples of 720p system.11Figure 4 Overlapped blocking of luminance(Y)pixels.12Figure 5 Overlapped blocking of colour difference CB/CR pixels.13Figure 6 Macro block structure in 1 080i system and 720p systems.13Figure 7 Super macro block structure in 1 080i system and 720p systems.14Figure 8 Pixel arrangement for blocking of 1 080i system.15Figure 9 The arrangement of SMBs in one field for 1 080i system.16Figure 10 The arrangement of SMBs in one frame for 720p system.16Figure 11 SMBG distribution in 1 080i system.17Figure 12 SMBG distribution in 720p system.18Figure 13 The structure of DCT coefficient block.20Figure 14 CG shuffling for Y.25Figure 15 CG shuffling for C.26Figure 16 RMB shuffling.28Figure 17 The order of VLC coding.30Figure 18 Structure of C3RMB.34Figure 19 Rearrangement of VLC data codewords.36Figure 20 Data structure of one 1 080i field/720p frame.37Figure 21 Main data DIF block packing.42Figure 22 Packing the compressed data in 5 760 DIF Blocks.43Figure A.1 The process of missing coefficient reproduction.44LICENSED TO MECON Limited.-RANCHI/BANGALOREFOR INTERNAL USE AT THIS LOCATION ONLY,SUPPLIED BY BOOK SUPPLY BUREAU.62330-2 IEC:2003(E)3 Table 1 The construction of video signal sampling.9Table 2 Categorization of Y signal.21Table 3 Categorization of CB signal.21Table 4 Categorization of CR signal.21Table 5 Table CY0(t,u).21Table 6 Table CY1(t,u).22Table 7 Ta