1、 International Telecommunication Union ITU-T J.601TELECOMMUNICATION STANDARDIZATION SECTOR OF ITU Amendment 1(07/2007) SERIES J: CABLE NETWORKS AND TRANSMISSION OF TELEVISION, SOUND PROGRAMME AND OTHER MULTIMEDIA SIGNALS Transport of Large Screen Digital Imagery Transport of Large Screen Digital Ima
2、gery (LSDI) applications for its expanded hierarchy Amendment 1: Modification of required picture and scanning characteristics ITU-T Recommendation J.601 (2005) Amendment 1 ITU-T Rec. J.601 (2005)/Amd.1 (07/2007) i ITU-T Recommendation J.601 Transport of Large Screen Digital Imagery (LSDI) applicati
3、ons for its expanded hierarchy Amendment 1 Modification of required picture and scanning characteristics Summary A number of appendices of ITU-T Recommendation J.601 (2005) were adopted in ITU-R Recommendation BT.1769. In particular, Table IV.1 of J.601, Picture and Scanning characteristics, has bee
4、n identified as normative in BT.1769. In order to align J.601 with BT.1769, this table has been extracted from the former Appendix IV and included in J.601 as new Annex A, thus making it normative. Source Amendment 1 to ITU-T Recommendation J.601 (2005) was approved on 29 July 2007 by ITU-T Study Gr
5、oup 9 (2005-2008) under the ITU-T Recommendation A.8 procedure. ii ITU-T Rec. J.601 (2005)/Amd.1 (07/2007) FOREWORD The International Telecommunication Union (ITU) is the United Nations specialized agency in the field of telecommunications, information and communication technologies (ICTs). The ITU
6、Telecommunication Standardization Sector (ITU-T) is a permanent organ of ITU. ITU-T is responsible for studying technical, operating and tariff questions and issuing Recommendations on them with a view to standardizing telecommunications on a worldwide basis. The World Telecommunication Standardizat
7、ion Assembly (WTSA), which meets every four years, establishes the topics for study by the ITU-T study groups which, in turn, produce Recommendations on these topics. The approval of ITU-T Recommendations is covered by the procedure laid down in WTSA Resolution 1. In some areas of information techno
8、logy which fall within ITU-Ts purview, the necessary standards are prepared on a collaborative basis with ISO and IEC. NOTE In this Recommendation, the expression “Administration“ is used for conciseness to indicate both a telecommunication administration and a recognized operating agency. Complianc
9、e with this Recommendation is voluntary. However, the Recommendation may contain certain mandatory provisions (to ensure e.g. interoperability or applicability) and compliance with the Recommendation is achieved when all of these mandatory provisions are met. The words “shall“ or some other obligato
10、ry language such as “must“ and the negative equivalents are used to express requirements. The use of such words does not suggest that compliance with the Recommendation is required of any party. INTELLECTUAL PROPERTY RIGHTS ITU draws attention to the possibility that the practice or implementation o
11、f this Recommendation may involve the use of a claimed Intellectual Property Right. ITU takes no position concerning the evidence, validity or applicability of claimed Intellectual Property Rights, whether asserted by ITU members or others outside of the Recommendation development process. As of the
12、 date of approval of this Recommendation, ITU had not received notice of intellectual property, protected by patents, which may be required to implement this Recommendation. However, implementers are cautioned that this may not represent the latest information and are therefore strongly urged to con
13、sult the TSB patent database at http:/www.itu.int/ITU-T/ipr/. ITU 2008 All rights reserved. No part of this publication may be reproduced, by any means whatsoever, without the prior written permission of ITU. ITU-T Rec. J.601 (2005)/Amd.1 (07/2007) 1 ITU-T Recommendation J.601 Transport of Large Scr
14、een Digital Imagery (LSDI) applications for its expanded hierarchy Amendment 1 Modification of required picture and scanning characteristics A number of appendices of ITU-T Recommendation J.601 (2005) were adopted in ITU-R Recommendation BT.1769. In particular, Table IV.1 of J.601, Picture and scann
15、ing characteristics, has been identified as normative in BT.1769. In order to align J.601 with BT.1769, this table has been extracted without modification from the former Appendix IV and included in J.601 as new Annex A, thus making it normative. 1) Add the following new Annex A Annex A The expanded
16、 hierarchy of the LSDI image formats (This annex forms an integral part of this Recommendation) This annex provides the fundamental parameter values for the members of the expanded hierarchy of LSDI image formats. Table A.1 Picture and scanning characteristics Values Item Parameter 3840 2160 LSDI sy
17、stem 7680 4320 LSDI system 1.1 Picture aspect ratio 16:9 1.2 Samples per active line 3840 7680 1.3 Active lines per picture 2160 4320 1.4 Sampling lattice Orthogonal 1.5 Order of samples Left to right, top to bottom 1.6 Pixel aspect ratio 1:1 (square pixels) 1.7 Sampling structure 4:2:2, 4:4:4 1.8 F
18、rame rate (Hz) 24*, 25, 30*, 50, 60* 1.9 Image structure Progressive 1.10 Bit/pixel 10, 12 1.11 Colorimetry See ITU-R Rec. BT.1361 * For the 24, 30 and 60 Hz systems, frame rates having those values divided by 1.001 are also specified. 2 ITU-T Rec. J.601 (2005)/Amd.1 (07/2007) 2) Replace Appendix IV
19、 by the following Appendix IV Estimated compression rates for distribution of expanded hierarchy signals (This appendix does not form an integral part of this Recommendation) Table IV.1 Estimated net compressed bit rate required to transport expanded hierarchy signals for contribution and for distri
20、bution purposes Parameter 3840 2160 LSDI system 7680 4320 LSDI system Sampling structure for source coding 4:4:4 4:2:2 4:2:0 4:4:4 4:2:2 4:2:0 Frame rate (Note 1) 60 60 60 60 60 60 Bit/pixel (Note 2) 10 10 10 10 10 10 Source bit rate 14.9 Gbit/s 9.95 Gbit/s 7.46 Gbit/s 59.7 Gbit/s 39.8 Gbit/s 29.9 G
21、bit/s Approximate Target encoding bit rate for H.264 (Note 3) 100 Mbit/s 66 Mbit/s 50 Mbit/s 400 Mbit/s 265 Mbit/s 200 Mbit/s Approximate Target encoding bit rate for H.262 (Note 3) 200 Mbit/s 135 Mbit/s 100 Mbit/s 800 Mbit/s 530 Mbit/s 400 Mbit/s NOTE 1 An appropriate frame rate should be chosen de
22、pending on the application. NOTE 2 Only the case of 10 Bit/pixel is shown here. NOTE 3 An appropriate bit rate should be chosen depending on the application. It should be noted that, since ITU-T Recommendations H.264 and H.262 do not currently support signals in the 3840 2160 or 7680 4320 image form
23、ats, transmission of those formats can currently be implemented by dividing the image into 16 9 sub-rasters, each one of them in the 1080 1920 format, and each one separately encoded. Printed in Switzerland Geneva, 2008 SERIES OF ITU-T RECOMMENDATIONS Series A Organization of the work of ITU-T Serie
24、s D General tariff principles Series E Overall network operation, telephone service, service operation and human factors Series F Non-telephone telecommunication services Series G Transmission systems and media, digital systems and networks Series H Audiovisual and multimedia systems Series I Integr
25、ated services digital network Series J Cable networks and transmission of television, sound programme and other multimedia signals Series K Protection against interference Series L Construction, installation and protection of cables and other elements of outside plant Series M Telecommunication mana
26、gement, including TMN and network maintenance Series N Maintenance: international sound programme and television transmission circuits Series O Specifications of measuring equipment Series P Telephone transmission quality, telephone installations, local line networks Series Q Switching and signallin
27、g Series R Telegraph transmission Series S Telegraph services terminal equipment Series T Terminals for telematic services Series U Telegraph switching Series V Data communication over the telephone network Series X Data networks, open system communications and security Series Y Global information infrastructure, Internet protocol aspects and next-generation networks Series Z Languages and general software aspects for telecommunication systems
