1、 I n t e r n a t i o n a l T e l e c o m m u n i c a t i o n U n i o n ITU-T Y.4412/F.747.8 TELECOMMUNICATION STANDARDIZATION SECTOR OF ITU (11/2015) SERIES Y: GLOBAL INFORMATION INFRASTRUCTURE, INTERNET PROTOCOL ASPECTS AND NEXT-GENERATION NETWORKS, INTERNET OF THINGS AND SMART CITIES Internet of t
2、hings and smart cities and communities Frameworks, architectures and protocols SERIES F: NON-TELEPHONE TELECOMMUNICATION SERVICES Requirements and reference architecture for audience-selectable media service framework in the IoT environment Recommendation ITU-T Y.4412/F.747.8 ITU-T Y-SERIES RECOMMEN
3、DATIONS GLOBAL INFORMATION INFRASTRUCTURE, INTERNET PROTOCOL ASPECTS AND NEXT-GENERATION NETWORKS, INTERNET OF THINGS AND SMART CITIES GLOBAL INFORMATION INFRASTRUCTURE General Y.100Y.199 Services, applications and middleware Y.200Y.299 Network aspects Y.300Y.399 Interfaces and protocols Y.400Y.499
4、Numbering, addressing and naming Y.500Y.599 Operation, administration and maintenance Y.600Y.699 Security Y.700Y.799 Performances Y.800Y.899 INTERNET PROTOCOL ASPECTS General Y.1000Y.1099 Services and applications Y.1100Y.1199 Architecture, access, network capabilities and resource management Y.1200
5、Y.1299 Transport Y.1300Y.1399 Interworking Y.1400Y.1499 Quality of service and network performance Y.1500Y.1599 Signalling Y.1600Y.1699 Operation, administration and maintenance Y.1700Y.1799 Charging Y.1800Y.1899 IPTV over NGN Y.1900Y.1999 NEXT GENERATION NETWORKS Frameworks and functional architect
6、ure models Y.2000Y.2099 Quality of Service and performance Y.2100Y.2199 Service aspects: Service capabilities and service architecture Y.2200Y.2249 Service aspects: Interoperability of services and networks in NGN Y.2250Y.2299 Enhancements to NGN Y.2300Y.2399 Network management Y.2400Y.2499 Network
7、control architectures and protocols Y.2500Y.2599 Packet-based Networks Y.2600Y.2699 Security Y.2700Y.2799 Generalized mobility Y.2800Y.2899 Carrier grade open environment Y.2900Y.2999 FUTURE NETWORKS Y.3000Y.3499 CLOUD COMPUTING Y.3500Y.3999 INTERNET OF THINGS AND SMART CITIES AND COMMUNITIES Genera
8、l Y.4000Y.4049 Definitions and terminologies Y.4050Y.4099 Requirements and use cases Y.4100Y.4249 Infrastructure, connectivity and networks Y.4250Y.4399 Frameworks, architectures and protocols Y.4400Y.4549 Services, applications, computation and data processing Y.4550Y.4699 Management, control and p
9、erformance Y.4700Y.4799 Identification and security Y.4800Y.4899 For further details, please refer to the list of ITU-T Recommendations. Rec. ITU-T Y.4412/F.747.8 (11/2015) i Recommendation ITU-T Y.4412/F.747.8 Requirements and reference architecture for audience-selectable media service framework i
10、n the IoT environment Summary Recommendation ITU-T Y.4412/F.747.8 describes requirements and reference architecture for the audience-selectable media (ASM) service framework. The ASM service provides audiences with media selection options according to their interests and preferences. Examples of med
11、ia selection options include the selection of an object of interest, and the selection of an interested camera object among multi-camera objects providing different views. History Edition Recommendation Approval Study Group Unique ID* 1.0 ITU-T Y.4412/F.747.8 2015-11-29 16 11.1002/1000/12620 Keyword
12、s ASM, audience-selectable, Internet of things, media. * To access the Recommendation, type the URL http:/handle.itu.int/ in the address field of your web browser, followed by the Recommendations unique ID. For example, http:/handle.itu.int/11.1002/1000/11830-en. ii Rec. ITU-T Y.4412/F.747.8 (11/201
13、5) FOREWORD The International Telecommunication Union (ITU) is the United Nations specialized agency in the field of telecommunications, information and communication technologies (ICTs). The ITU Telecommunication Standardization Sector (ITU-T) is a permanent organ of ITU. ITU-T is responsible for s
14、tudying technical, operating and tariff questions and issuing Recommendations on them with a view to standardizing telecommunications on a worldwide basis. The World Telecommunication Standardization Assembly (WTSA), which meets every four years, establishes the topics for study by the ITU-T study g
15、roups 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 technology which fall within ITU-Ts purview, the necessary standards are prepared on a collaborative basis wit
16、h 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. Compliance with this Recommendation is voluntary. However, the Recommendation may contain certain mandatory provi
17、sions (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 obligatory language such as “must“ and the negative equivalents are used to express requirements. The use of s
18、uch words does not suggest that compliance with the Recommendation is required of any party. INTELLECTUAL PROPERTY RIGHTSITU draws attention to the possibility that the practice or implementation of this Recommendation may involve the use of a claimed Intellectual Property Right. ITU takes no positi
19、on 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 date of approval of this Recommendation, ITU had received notice of intellectual property, protected b
20、y 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 consult the TSB patent database at http:/www.itu.int/ITU-T/ipr/. ITU 2016 All rights reserved. No part of this
21、 publication may be reproduced, by any means whatsoever, without the prior written permission of ITU. Rec. ITU-T Y.4412/F.747.8 (11/2015) iii Table of Contents Page 1 Scope . 1 2 References . 1 3 Definitions 1 3.1 Terms defined elsewhere 1 3.2 Terms defined in this Recommendation . 2 4 Abbreviations
22、 and acronyms 2 5 Conventions 2 6 Overview of audience-selectable media (ASM) service 2 7 Requirements of ASM service framework . 4 7.1 Service requirements 4 7.2 Functional requirements . 4 8 Reference architecture of ASM service framework . 5 8.1 Reference architecture 5 8.2 Camera objects functio
23、n . 7 8.3 Camera control server function 8 8.4 Video playback terminal function 9 Appendix I Use cases for ASM service 10 I.1 Use case for an ASM broadcasting service using multi-camera objects 10 I.2 Use case for an open screen service using multi-camera objects . 11 Bibliography. 13 iv Rec. ITU-T
24、Y.4412/F.747.8 (11/2015) Introduction Recently, demands for personalized media and interactivity in the media service are increasing and media service platforms are needed to support the fast development and deployment of new multimedia services/applications by reconfiguration of the existing servic
25、e components. Due to the expansion of the Internet of things (IoT), objects related to media services can be identified and recognized by people or other objects. Also, the IoT enables person-to-object and object-to-object communications as well as person-to-person communication. Audience-selectable
26、 media (ASM) service enables viewers to be interactive and select preferred media in the running time by providing media selection options. Rec. ITU-T Y.4412/F.747.8 (11/2015) 1 Recommendation ITU-T Y.4412/F.747.8 Requirements and reference architecture for audience-selectable media service framewor
27、k in the IoT environment 1 Scope This Recommendation defines requirements and reference architecture for audience-selectable media (ASM) service in the Internet of things (IoT). The scope of this Recommendation includes: concept of ASM service framework; requirements of ASM service framework; refere
28、nce architecture of ASM service framework; and functional entities of ASM service framework. 2 References None. 3 Definitions 3.1 Terms defined elsewhere This Recommendation uses the following terms defined elsewhere: 3.1.1 device b-ITU-T Y.4400: An apparatus through which a user can perceive and in
29、teract with the web. 3.1.2 Internet of things b-ITU-T Y.4000: A global infrastructure for the information society, enabling advanced services by interconnecting (physical and virtual) things based on existing and evolving interoperable information and communication technologies. NOTE 1 Through the e
30、xploitation of identification, data capture, processing and communication capabilities, the IoT makes full use of things to offer services to all kinds of applications, whilst ensuring that security and privacy requirements are fulfilled. NOTE 2 From a broader perspective, the IoT can be perceived a
31、s a vision with technological and societal implications. 3.1.3 object b-ITU-T Y.2002: An intrinsic representation of an entity that is described at an appropriate level of abstraction in terms of its attributes and functions. 3.1.4 resources b-ITU-T Y.4400: The term “resource“ is whatever might be i
32、dentified by a URI. NOTE Familiar examples include an electronic document, an image, a source of information with a consistent purpose (e.g., “todays weather report for Los Angeles“), a service (e.g., an HTTP-to-SMS gateway), and a collection of other resources. A resource is not necessarily accessi
33、ble via the Internet; e.g., human beings, corporations, and bound books in a library can also be resources. Likewise, abstract concepts can be resources, such as the operators and operands of a mathematical equation, the types of a relationship (e.g., “parent“ or “employee“), or numeric values (e.g.
34、, zero, one, and infinity). 3.1.5 thing b-ITU-T Y.4000: With regard to the Internet of things, this is an object of the physical world (physical things) or the information world (virtual things), which is capable of being identified and integrated into communication networks. 2 Rec. ITU-T Y.4412/F.7
35、47.8 (11/2015) 3.2 Terms defined in this Recommendation This Recommendation defines the following terms: 3.2.1 camera control server: A server that selects and updates camera objects, camera object groups, and the main camera object. It also controls camera objects. 3.2.2 camera object: A device tha
36、t captures and tracks objects of interest. It can also transmit and receive the tracked position of each object of interest to both other camera devices and a camera control server through the Internet. Its pan-tilt-zoom may be controlled by the camera control server for tracking objects of interest
37、. 3.2.3 camera object group: A group of camera objects that capture the same object of interest whose occupied region size in the frame is greater than the pre-defined value. 3.2.4 main camera object: A camera object that captures a main broadcasting video. The initial main camera object is selected
38、 by audiences or the broadcaster. The main camera object can be changed to the sub-camera object during the service. 3.2.5 object of interest: A moving person or a moving thing in the video of which the service audience may have interest. 3.2.6 sub-camera object: A camera object that is not selected
39、 as a main camera object. An initial sub-camera object is usually selected by the broadcaster. The sub-camera object can be changed to the main camera object by audiences during the service. 4 Abbreviations and acronyms This Recommendation uses the following abbreviations and acronyms: ASM Audience-
40、Selectable Media FE Functional Entity ID Identifier IoT Internet of Things URI Uniform Resource Identifier Wi-Fi Wireless Fidelity 5 Conventions None. 6 Overview of audience-selectable media (ASM) service Internet of things (IoT) and web of things (WoT) enable physical devices to be accessed as reso
41、urces and services/applications of the web. As new multimedia services/applications are emerging, media service platforms need to support fast development and deployment of new multimedia services/applications by reconfiguration of the existing service components. Also, media service devices, such a
42、s cameras, are beginning to provide wireless fidelity (Wi-Fi) technology. IoT-applied media service enables objects in media service to be identified and recognized by people or other objects; IoT also enables person-to-object and object-to-object communications as well as person-to-person. This rea
43、lizes the smart media service where objects can be automatically reconfigured to create and deliver media content according to the audiences demands and preferences. Rec. ITU-T Y.4412/F.747.8 (11/2015) 3 In the current broadcasting service, a suitable camera object is selected among available camera
44、 objects, video from the selected camera object is encoded, and the encoded video is broadcasted to viewers. Attributes of the content and service region are considered for broadcasting. This traditional broadcasting service does not provide any options to audiences to select various views from diff
45、erent camera objects in the same scene. The lack of this option causes audiences to remain passive. The ASM service enables audiences to be interactive and select preferred media in the running time by providing media selection options. Examples of media selection options include the selection of an
46、 object of interest and a selection of an interested camera object among multi-camera objects providing different views. Figure 1 illustrates the concept of the ASM service. As described in Figure 1, there are three components in the ASM service: Broadcaster, audience, and camera management server.
47、These components generate and update object of interest, camera group for each object of interest, and a camera view-video that the audience is interested in, including the following: (1) broadcaster: The broadcaster shows object of interest candidates to the audience. (2) audience: The audience sel
48、ects one object from the object of interest candidates, selects one of the camera objects in the camera group for the selected object of interest, and watches the selected camera view-video. (3) camera management server: The camera management server updates the cameras in each camera group for each
49、object of interest, gets the selection option inputs from the audience, and broadcasts the selected camera-view video to the audience. Figure 1 Concept of ASM service The concept of the ASM service described in Figure 1 can be explained as follows: broadcasters first specify the object of interest candidates in the scene (e.g., player 1 and player 2) and then show them to the audience for selection; 4 Rec. ITU-T Y.4412/F.747.8 (11/2015) the camera management server constitutes an initial correspondin
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