CAN CSA-ISO IEC 14496-19-2005 Information technology - Coding of audio-visual objects - Part 19 Synthesized texture stream.pdf

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1、 Reference numberISO/IEC 14496-19:2004(E)ISO/IEC 2004Information technology Coding of audio-visual objects Part 19: Synthesized texture stream Technologies de linformation Codage des objets audiovisuels Partie 19: Flux de texture synthtis National Standard of CanadaCAN/CSA-ISO/IEC 14496-19:05(ISO/IE

2、C 14496-19:2004)International Standard ISO/IEC 14496-19:2004 (first edition, 2004-07-01) has been adopted withoutmodification (IDT) as CSA Standard CAN/CSA-ISO/IEC 14496-19:05, which has been approved as a NationalStandard of Canada by the Standards Council of Canada.ISBN 1-55397-955-9 October 2005T

3、he Canadian Standards Association (CSA), under whose auspices this National Standard has been produced, was chartered in 1919 and accredited by the Standards Council of Canada to the National Standards system in 1973. It is a not-for-profit, nonstatutory, voluntary membership association engaged in

4、standards development and certification activities. CSA standards reflect a national consensus of producers and users including manufacturers, consumers, retailers, unions and professional organizations, and governmental agencies. The standards are used widely by industry and commerce and often adop

5、ted by municipal, provincial, and federal governments in their regulations, particularly in the fields of health, safety, building and construction, and the environment. Individuals, companies, and associations across Canada indicate their support for CSAs standards development by volunteering their

6、 time and skills to CSA Committee work and supporting the Associations objectives through sustaining memberships. The more than 7000 committee volunteers and the 2000 sustaining memberships together form CSAs total membership from which its Directors are chosen. Sustaining memberships represent a ma

7、jor source of income for CSAs standards development activities. The Association offers certification and testing services in support of and as an extension to its standards development activities. To ensure the integrity of its certification process, the Association regularly and continually audits

8、and inspects products that bear the CSA Mark. In addition to its head office and laboratory complex in Toronto, CSA has regional branch offices in major centres across Canada and inspection and testing agencies in eight countries. Since 1919, the Association has developed the necessary expertise to

9、meet its corporate mission: CSA is an independent service organization whose mission is to provide an open and effective forum for activities facilitating the exchange of goods and services through the use of standards, certification and related services to meet national and international needs.For

10、further information on CSA services, write toCanadian Standards Association5060 Spectrum Way, Suite 100Mississauga, Ontario, L4W 5N6CanadaThe Standards Council of Canada is the coordinating body of the National Standards system, a federation of independent, autonomous organizations working towards t

11、he further development and improvement of voluntary standardization in the national interest. The principal objects of the Council are to foster and promote voluntary standardization as a means of advancing the national economy, benefiting the health, safety, and welfare of the public, assisting and

12、 protecting the consumer, facilitating domestic and international trade, and furthering international cooperation in the field of standards. A National Standard of Canada is a standard which has been approved by the Standards Council of Canada and one which reflects a reasonable agreement among the

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14、aking a significant and timely contribution to the national interest. Approval of a standard as a National Standard of Canada indicates that a standard conforms to the criteria and procedures established by the Standards Council of Canada. Approval does not refer to the technical content of the stan

15、dard; this remains the continuing responsibility of the accredited standards development organization. Those who have a need to apply standards are encouraged to use National Standards of Canada whenever practicable. These standards are subject to periodic review; therefore, users are cautioned to o

16、btain the latest edition from the organization preparing the standard.The responsibility for approving National Standards of Canada rests with theStandards Council of Canada270 Albert Street, Suite 200Ottawa, Ontario, K1P 6N7CanadaAlthough the intended primary application of this Standard is stated

17、in its Scope, it is importantto note that it remains the responsibility of the users to judge its suitability for their particular purpose.Registered trade-mark of Canadian Standards AssociationCette norme est offerte en anglais seulement pour le moment. La CSA publiera la version enfranais ds quell

18、e sera produite par lorganisme rdacteur.CAN/CSA-ISO/IEC 14496-19:05Information technology Coding of audio-visualobjects Part 19: Synthesized texture streamOctober 2005 Canadian Standards Association CSA/1CAN/CSA-ISO/IEC 14496-19:05Information technology Coding of audio-visual objects Part 19: Synthe

19、sized texture streamCSA PrefaceStandards development within the Information Technology sector is harmonized with international standards development. Through the CSA Technical Committee on Information Technology (TCIT), Canadians serve as the Canadian Advisory Committee (CAC) on ISO/IEC Joint Techni

20、cal Committee 1 on Information Technology (ISO/IEC JTC1) for the Standards Council of Canada (SCC), the ISO member body for Canada and sponsor of the Canadian National Committee of the IEC. Also, as a member of the International Telecommunication Union (ITU), Canada participates in the International

21、 Telegraph and Telephone Consultative Committee (ITU-T).At the time of publication, ISO/IEC 14496-19:2004 is available from ISO and IEC in English only. CSA will publish the French version when it becomes available from ISO and IEC.This International Standard was reviewed by the CSA TCIT under the j

22、urisdiction of the Strategic Steering Committee on Information Technology and deemed acceptable for use in Canada. (A committee membership list is available on request from the CSA Project Manager.) From time to time, ISO/IEC may publish addenda, corrigenda, etc. The CSA TCIT will review these docum

23、ents for approval and publication. For a listing, refer to the CSA Information Products catalogue or CSA Info Update or contact a CSA Sales representative. This Standard has been formally approved, without modification, by the Technical Committee and has been approved as a National Standard of Canad

24、a by the Standards Council of Canada.October 2005 Canadian Standards Association 2005All rights reserved. No part of this publication may be reproduced in any form whatsoever without the prior permission ofthe publisher. ISO/IEC material is reprinted with permission. Where the words “this Internatio

25、nal Standard” appear in the text, they should be interpreted as “this National Standard of Canada”.Inquiries regarding this National Standard of Canada should be addressed toCanadian Standards Association5060 Spectrum Way, Suite 100, Mississauga, Ontario, Canada L4W 5N61-800-463-6727 416-747-4044www

26、.csa.caReference numberISO/IEC 14496-19:2004(E)ISO/IEC 2004INTERNATIONAL STANDARD ISO/IEC14496-19First edition2004-07-01Information technology Coding of audio-visual objects Part 19: Synthesized texture stream Technologies de linformation Codage des objets audiovisuels Partie 19: Flux de texture syn

27、thtis ISO/IEC 14496-19:2004(E) PDF disclaimer This PDF file may contain embedded typefaces. In accordance with Adobes licensing policy, this file may be printed or viewed but shall not be edited unless the typefaces which are embedded are licensed to and installed on the computer performing the edit

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30、the address given below. ISO/IEC 2004 All rights reserved. Unless otherwise specified, 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 either ISO at the address b

31、elow or ISOs member body in the country of the requester. ISO copyright office Case postale 56 CH-1211 Geneva 20 Tel. + 41 22 749 01 11 Fax + 41 22 749 09 47 E-mail copyrightiso.org Web www.iso.org ii ISO/IEC 2004 All rights reservedISO/IEC 14496-19:2004(E) ISO/IEC 2004 All rights reserved iiiConten

32、ts Page Foreword. v Introduction vii 1 Scope 1 2 Normative References 1 3 Synthesized Texture Compression Technology 1 3.1 Functionality and Semantics . 1 4 Coding and Bitstream. 46 4.1 Overview 46 4.2 Global Input Bitstream and Decoding Context 46 4.3 Header Block (H) Decoding 48 4.4 Scene Block (S

33、) Decoding 49 4.5 Object Block (C) Decoding. 50 4.6 Texture Block (A) Decoding . 51 4.7 Skeleton Decoding 73 4.8 Animation Decoding . 76 4.9 Camera Decoding 80 4.10 Quantization 81 4.11 Sub-Streams 82 5 SynthesizedTexture Data Stream 86 5.1 Structure of the SynthesizedTexture Data Stream 86 5.2 Acce

34、ss Unit Definition 86 ISO/IEC 14496-19:2004(E) iv ISO/IEC 2004 All rights reservedForeword ISO (the International Organization for Standardization) and IEC (the International Electrotechnical Commission) form the specialized system for worldwide standardization. National bodies that are members of I

35、SO or IEC participate in the development of International Standards through technical committees established by the respective organization to deal with particular fields of technical activity. ISO and IEC technical committees collaborate in fields of mutual interest. Other international organizatio

36、ns, governmental and non-governmental, in liaison with ISO and IEC, also take part in the work. In the field of information technology, ISO and IEC have established a joint technical committee, ISO/IEC JTC 1. International Standards are drafted in accordance with the rules given in the ISO/IEC Direc

37、tives, Part 2. The main task of the joint technical committee is to prepare International Standards. Draft International Standards adopted by the joint technical committee are circulated to national bodies for voting. Publication as an International Standard requires approval by at least 75 % of the

38、 national bodies casting a vote. ISO/IEC 14496-19 was prepared by Joint Technical Committee ISO/IEC JTC 1, Information technology, Subcommittee SC 29, Coding of audio, picture, multimedia and hypermedia information. ISO/IEC 14496 consists of the following parts, under the general title Information t

39、echnology Coding of audio-visual objects: Part 1: Systems Part 2: Visual Part 3: Audio Part 4: Conformance testing Part 5: Reference software Part 6: Delivery Multimedia Integration Framework (DMIF) Part 7: Optimized reference software for coding of audio-visual objects Part 8: Carriage of ISO/IEC 1

40、4496 contents over IP networks Part 9: Reference hardware description Part 10: Advanced Video Coding Part 11: Scene description and application engine Part 12: ISO base media file format Part 13: Intellectual Property Management and Protection (IPMP) extensions Part 14: MP4 file format Part 15: Adva

41、nced Video Coding (AVC) file format Part 16: Animation Framework eXtension (AFX) ISO/IEC 14496-19:2004(E) ISO/IEC 2004 All rights reserved v Part 17: Streaming text format Part 18: Font compression and streaming Part 19: Synthesized texture stream ISO/IEC 14496-19:2004(E) vi ISO/IEC 2004 All rights

42、reservedIntroduction ISO/IEC 14496 specifies a system for the communication of interactive audio-visual scenes. The specification includes the following elements: 1. the coded representation of natural or synthetic, two-dimensional (2D) or three-dimensional (3D) objects that can be manifested audibl

43、y and/or visually (audio-visual objects) (specified in part 1,2 and 3 of ISO/IEC 14496); 2. the coded representation of the spatio-temporal positioning of audio-visual objects as well as their behavior in response to interaction (scene description, specified in part 11 of ISO/IEC 14496); 3. the code

44、d representation of information related to the management of data streams (synchronization, identification, description and association of stream content, specified in part 11 of ISO/IEC 14496); 4. a generic interface to the data stream delivery layer functionality (specified in part 6 of ISO/IEC 14

45、496); 5. an application engine for programmatic control of the player: format, delivery of downloadable Java byte code as well as its execution lifecycle and behavior through APIs (specified in part 11 of ISO/IEC 14496); and 6. a file format to contain the media information of an ISO/IEC 14496 prese

46、ntation in a flexible, extensible format to facilitate interchange, management, editing, and presentation of the media. The information representation, specified in ISO/IEC 14496-1 and in ISO/IEC 14496-11, describes the means to create an interactive audio-visual scene in terms of coded audio-visual

47、 information and associated scene description information. The encoded content is presented to a terminal as the collection of elementary streams. Elementary streams contain the coded representation of either audio or visual data or scene description information or user interaction data. Elementary

48、streams may as well themselves convey information to identify streams, to describe logical dependencies between streams, or to describe information related to the content of the streams. Each elementary stream contains only one type of data. Elementary streams are decoded using their respective stre

49、am-specific decoders. The audio-visual objects are composed according to the scene description information and presented by the terminals presentation device(s). All these processes are synchronized according to the systems decoder model (SDM) using the synchronization information provided at the synchronization layer. The scene description stream identifies different types of objects, such as audio, visual, 2D and 3D graphics, etc. that define a scene composition of t