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1、 Reference number ISO/IEC 15938-9:2005(E) ISO/IEC 2005 INTERNATIONAL STANDARD ISO/IEC 15938-9 First edition 2005-04-01 Information technology Multimedia content description interface Part 9: Profiles and levels Technologies de linformation Interface de description du contenu multimdia Partie 9: Prof
2、ils et niveaux Copyright International Organization for Standardization Provided by IHS under license with ISO Licensee=NASA Technical Standards 1/9972545001 Not for Resale, 04/18/2007 20:02:47 MDTNo reproduction or networking permitted without license from IHS -,-,- ISO/IEC 15938-9:2005(E) PDF disc
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5、he file; the PDF-creation parameters were optimized for printing. Every care has been taken to ensure that the file is suitable for use by ISO member bodies. In the unlikely event that a problem relating to it is found, please inform the Central Secretariat at the address given below. ISO/IEC 2005 A
6、ll 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 below or ISOs member body in the country
7、 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 Published in Switzerland ii ISO/IEC 2005 All rights reserved Copyright International Organization for Standardization Provided by IHS under l
8、icense with ISO Licensee=NASA Technical Standards 1/9972545001 Not for Resale, 04/18/2007 20:02:47 MDTNo reproduction or networking permitted without license from IHS -,-,- ISO/IEC 15938-9:2005(E) ISO/IEC 2005 All rights reserved iii Contents Page Forewordv Introductionvi 1 Scope1 1.1 General1 1.2 O
9、rganization of the document1 2 Normative references1 3 Definition of MPEG-7 Profiling .2 3.1 General2 3.2 Definitions 2 3.2.1 Profile2 3.2.2 Level2 3.2.3 MPEG-7 Schema 2 3.2.4 Description profile.2 3.2.5 Description level3 3.2.6 Profile schema .3 3.3 Conventions.3 3.3.1 Naming and identification of
10、profiles 3 3.3.2 Specification of profiles and levels3 4 Description Profiles.4 4.1 General4 4.2 Simple Metadata Profile (SMP) and Level .4 4.2.1 Application Areas (INFORMATIVE)4 4.2.2 Functionality (INFORMATIVE)4 4.2.3 Tools in the Profile (NORMATIVE) .6 4.2.4 Levels for SMP (NORMATIVE)9 4.3 User D
11、escription Profile (UDP) and Level.9 4.3.1 Application Areas (INFORMATIVE)9 4.3.2 Functionality (INFORMATIVE)9 4.3.3 Tools in the Profile (NORMATIVE) 10 4.3.4 Levels for UDP (NORMATIVE). 13 4.4 Core Description Profile (CDP) and Level 13 4.4.1 Application Areas (INFORMATIVE). 13 4.4.2 Functionality
12、(INFORMATIVE). 13 4.4.3 Tools in the Profile (NORMATIVE) 13 4.4.4 Levels for CDP (NORMATIVE). 19 5 MPEG-7 Profile URI Values and Schema Namespace. 19 6 MPEG-7 Profile Schemas. 19 Copyright International Organization for Standardization Provided by IHS under license with ISO Licensee=NASA Technical S
13、tandards 1/9972545001 Not for Resale, 04/18/2007 20:02:47 MDTNo reproduction or networking permitted without license from IHS -,-,- ISO/IEC 15938-9:2005(E) iv ISO/IEC 2005 All rights reserved Foreword ISO (the International Organization for Standardization) and IEC (the International Electrotechnica
14、l Commission) form the specialized system for worldwide standardization. National bodies that are members of ISO or IEC participate in the development of International Standards through technical committees established by the respective organization to deal with particular fields of technical activi
15、ty. ISO and IEC technical committees collaborate in fields of mutual interest. Other international organizations, 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 committ
16、ee, ISO/IEC JTC 1. International Standards are drafted in accordance with the rules given in the ISO/IEC Directives, 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
17、national bodies for voting. Publication as an International Standard requires approval by at least 75 % of the national bodies casting a vote. Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. ISO and IEC shall not be held responsib
18、le for identifying any or all such patent rights. ISO/IEC 15938-9 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 15938 consists of the following parts, under the general tit
19、le Information technology Multimedia content description interface: Part 1: Systems Part 2: Description definition language Part 3: Visual Part 4: Audio Part 5: Multimedia description schemes Part 6: Reference software Part 7: Conformance testing Part 8: Extraction and use of MPEG-7 descriptions Par
20、t 9: Profiles and levels Part 10: Schema definition Part 11: MPEG-7 profile schemas Copyright International Organization for Standardization Provided by IHS under license with ISO Licensee=NASA Technical Standards 1/9972545001 Not for Resale, 04/18/2007 20:02:47 MDTNo reproduction or networking perm
21、itted without license from IHS -,-,- ISO/IEC 15938-9:2005(E) ISO/IEC 2005 All rights reserved v Introduction This International Standard, also known as “Multimedia Content Description Interface,“ provides a standardized set of technologies for describing multimedia content. It addresses a broad spec
22、trum of multimedia applications and requirements by providing a metadata system for describing the features of multimedia content. The following are specified in this International Standard: Description schemes (DS) describe entities or relationships pertaining to multimedia content. Description sch
23、emes specify the structure and semantics of their components, which may be Description Schemes, descriptors, or datatypes. Descriptors (D) describe features, attributes, or groups of attributes of multimedia content. Datatypes are the basic reusable datatypes employed by description schemes and desc
24、riptors Systems tools support delivery of descriptions, multiplexing of descriptions with multimedia content, synchronization, file format, and so forth. This International Standard is subdivided into 10 parts: Part 1 Systems: specifies the tools for preparing descriptions for efficient transport an
25、d storage, compressing descriptions, and allowing synchronization between content and descriptions. Part 2 Description definition language: specifies the language for defining the International Standard set of description tools (DSs, Ds, and datatypes) and for defining new description tools. Part 3
26、Visual: specifies the description tools pertaining to visual content. Part 4 Audio: specifies the description tools pertaining to audio content. Part 5 Multimedia description schemes: specifies the generic description tools pertaining to multimedia including audio and visual content. Part 6 Referenc
27、e software: provides a software implementation of the International Standard. Part 7 Conformance testing: specifies the guidelines and procedures for testing conformance of implementations of the International Standard. Part 8 Extraction and use of MPEG-7 descriptions: provides guidelines and exampl
28、es of the extraction and use of descriptions. Part 9 Profiles and levels: provides guidelines and standard profiles. Part 10 Schema definition: specifies the schema using description definition language. Part 11 Profile Schemas: listing of profile schemas using description definition language. Copyr
29、ight International Organization for Standardization Provided by IHS under license with ISO Licensee=NASA Technical Standards 1/9972545001 Not for Resale, 04/18/2007 20:02:47 MDTNo reproduction or networking permitted without license from IHS -,-,- Copyright International Organization for Standardiza
30、tion Provided by IHS under license with ISO Licensee=NASA Technical Standards 1/9972545001 Not for Resale, 04/18/2007 20:02:47 MDTNo reproduction or networking permitted without license from IHS -,-,- INTERNATIONAL STANDARD ISO/IEC 15938-9:2005(E) ISO/IEC 2005 All rights reserved 1 Information techn
31、ology Multimedia content description interface Part 9: Profiles and levels 1 Scope 1.1 General This part of 15938-9 collects standard profiles and levels for MPEG-7, specified across all ISO/IEC 15938 parts. While all parts are potential candidates for profiling, current profiles concentrate on the
32、description definition language ISO/IEC 15938-2, visual ISO/IEC 15938-3, audio ISO/IEC 15938-4 and multimedia description schemes ISO/IEC 15938-5, which are based on the namespace versioning defined in schema definition ISO/IEC 15938-10. 1.2 Organization of the document ISO/IEC 15938-9 provides six
33、clauses. Clause 1 sets out the scope of this document while Clause 2 lists the normative and informative document references. Clause 3 provides definitions for terms and. Clause 4 provides the informative part of description for application areas and functionality with the normative part of table fo
34、r tools used and their constraints for each of the standard profiles and levels. Clause 5 provides a table of URI values for each standard profile, while Annex A contains a collection of profile schema for each of the standard profiles. 2 Normative references The following referenced documents are i
35、ndispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. ISO/IEC 15938-2, Information technology Multimedia content description interface Part 2:
36、Description definition language ISO/IEC 15938-3, Information technology Multimedia content description interface Part 3: Visual ISO/IEC 15938-4, Information technology Multimedia content description interface Part 4: Audio ISO/IEC 15938-5, Information technology Multimedia content description interf
37、ace Part 5: Multimedia description schemes ISO/IEC 15938-10, Information technology Multimedia content description interface Part 10: Schema definition Note: The documents are maintained by the W3C (http:/www.w3.org). The relevant documents can be obtained as follows: Extensible Markup Language (XML
38、) 1.0 (Second Edition), 6 October 2000, http:/www.w3.org/TR/2000/REC- xml-20001006 Copyright International Organization for Standardization Provided by IHS under license with ISO Licensee=NASA Technical Standards 1/9972545001 Not for Resale, 04/18/2007 20:02:47 MDTNo reproduction or networking permi
39、tted without license from IHS -,-,- 2 ISO/IEC 2005 All rights reserved XML Schema: W3C Recommendation, 2 May 2001, http:/www.w3.org/XML/Schema XML Schema Part 0: Primer, W3C Recommendation, 2 May 2001, http:/www.w3.org/TR/xmlschema-0/ XML Schema Part 1: Structures, W3C Recommendation, 2 May 2001, ht
40、tp:/www.w3.org/TR/xmlschema-1/ XML Schema Part 2: Datatypes, W3C Recommendation 2 May 2001, http:/www.w3.org/TR/xmlschema-2/ xPath, XML Path Language, W3C Recommendation, 16 November 1999, http:/www.w3.org/TR/1999/REC- xpath-19991116. Canonical XML Version 1.0, W3C Recommendation 15 March 2001, http
41、:/www.w3.org/TR/2001/REC-xml- c14n-20010315 3 Definition of MPEG-7 Profiling 3.1 General For ISO/IEC 15938, there may be different kinds of profiles. Currently, only description profiles are defined in this part. It is conceivable that other types (dimensions) of profiles are defined in the future,
42、and that it would be possible to combine profiles from such different dimensions into a single conformant application or device. Description profiles define subsets of description tools across the different parts of ISO/IEC 15938. This document exclusively contains description profiles. Relevant ter
43、ms related to this document are defined below. 3.2 Definitions 3.2.1 Profile A profile is a subset of tools defined in ISO/IEC 15938, providing a particular set of functionalities for one or more classes of applications. 3.2.2 Level A level is a defined set of constraints on a profile to limit the c
44、omplexity of the profile. 3.2.3 MPEG-7 Schema Parts 2 (DDL), 3 (Visual), 4 (Audio) and 5 (MDS) of ISO/IEC 15938 define description tools: descriptors, description schemes and data types. The combined syntax of these description tools, across Parts 2, 3, 4 and 5 of ISO/IEC 15938, forms a schema in th
45、e XML Schema sense. This schema is defined by Part 10 (Schema Definition) of ISO/IEC 15938, as are the different versions of this schema. This schema is defined in a namespace, identified by a URN value. For example, the value “urn:mpeg:mpeg7:schema:2001” is used for the namespace of version 1 of th
46、e ISO/IEC 15938-10 schema. The semantics of description tools is described in Parts 2, 3, 4 and 5 of ISO/IEC 15938. 3.2.4 Description profile A description profile provides a means of selecting and constraining description tools from the ISO/IEC 15938- 10 schema, thereby constraining conforming desc
47、riptions in their content. A description profile generally limits the use of description tools to subsets of the description tools defined in ISO/IEC 15938. The description tools in a description profile support a set of functionalities for a certain class of applications. ISO/IEC 15938-9:2005(E) Co
48、pyright International Organization for Standardization Provided by IHS under license with ISO Licensee=NASA Technical Standards 1/9972545001 Not for Resale, 04/18/2007 20:02:47 MDTNo reproduction or networking permitted without license from IHS -,-,- ISO/IEC 2005 All rights reserved 3 3.2.5 Description level A description level defines further constraints to limit the complexity of conform