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MPEG-21 Introduction Intellectual Property Management and Protection

MPEG-21 Introduction Intellectual Property Management and Protection. Halld ór Matthías Sigurðsson Ph.D. student at CTI – halldor@cti.dtu.dk Lecture - 03.03.2004. MPEG. The MPEG standards. Static. MPEG-1 MPEG-2 MPEG-4 MPEG-7 MPEG-21. Video coding standards. Objects.

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MPEG-21 Introduction Intellectual Property Management and Protection

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  1. MPEG-21 Introduction Intellectual Property Management and Protection Halldór Matthías Sigurðsson Ph.D. student at CTI – halldor@cti.dtu.dk Lecture - 03.03.2004 Halldór Matthías Sigurðsson

  2. MPEG The MPEG standards Static • MPEG-1 • MPEG-2 • MPEG-4 • MPEG-7 • MPEG-21 Video coding standards Objects Content Management Description Generate Lifecycle DRM Pay Consume Halldór Matthías Sigurðsson

  3. MPEG-21 Standardization Standardization • The MPEG standards are “open” on two sides • Methods for generation and consumption are not defined by the standards MPEG Generation Consumption Halldór Matthías Sigurðsson

  4. MPEG-21 Introduction Source: MultimediaLAB, Ghent University MPEG-21 the Multimedia Framework • Universal management of content, representing content based on user preferences and device capabilities, protection of rights, protection from unauthorized access / modification, protection of privacy of providers and consumers … Halldór Matthías Sigurðsson

  5. Transaction/Use/Relationship Digital Item Authorization/Value Exchange User A User B MPEG-21 Conclusion • What • A Digital Item is a structured digital object with a standard representation, identification and metadata within the MPEG-21 framework. • Who • A User is any entity that interacts in the MPEG-21 environment or makes use of a Digital Item. Source: Source: Chiariglione.org/mpeg Halldór Matthías Sigurðsson

  6. Multimedia Framework • Example: • Unique Resource Identifiers • Content Descriptors • Example: • Container, Item, Resource • Example: • Storage Management • Content Personalization • Example: • Resource Abstraction • Resource Management (QoS) • Example: • Encryption • Authentication • Watermarking • Service & state reference mechanisms • Support for usage tracking • Examples: • Natural and Synthetic • Scalability Halldór Matthías Sigurðsson

  7. MPEG-21 Digital Rights Management • Is MPEG trying to tame the hackers? • DRM is a necessity, not only for industry support, but for a global market • DRM will refer to the general issue of digital rights management, while Intellectual Property Management and Protection (IPMP) • will denote MPEG specifics • MPEG-21 explains the basic concepts of a machine-interpretable language for expressing the rights of users and content • Does not provide specifications for security in trusted systems, pose specific applications, or describe the details of the accounting systems required. • It does describe the language’s syntax and semantics Halldór Matthías Sigurðsson

  8. IPMP using ‘hooks’ approach • IPMP in MPEG 2 and 4 (version 1) used the ‘hooks’ approach • Plug-in a proprietary IPMP system • Embed information into content streams that informs the terminal which proprietary IPMP system to use • The reason was cost/benefit trade-off, one size did not fit all (e.g. TV and PDA) • Downside: Limits interoperability, heavier terminal environment, risk many similar MPEG devices being built without inter-working Halldór Matthías Sigurðsson

  9. New IPMP approach • More generalized architecture • Provider lists authentication methods, recipient selects one • Terminal can get IPMP Tools embedded in content or by downloading it • Still based on hooking but uses Message Routing Service to simplify • Audit agencies can provide Trust and Security metadata Halldór Matthías Sigurðsson

  10. MPEG-21 Digital Rights Management Halldór Matthías Sigurðsson

  11. Rights Expression Language • REL is seen as a machine-readable language that can declare rights and permissions using the terms as defined in the Rights Data Directory (RDD) • The principal to whom the grant is issued • The right that the grant specifies • The resource to which the right in the grant applies • The condition that must be met before the right can be exercised • REL is supported by Rights Data Directory (RDD) Halldór Matthías Sigurðsson

  12. MPEG-21 Conclusion • Open standard-based framework for multimedia delivery and consumption? • Enables the use of multimedia resources across a wide range of networks and devices • Consists of Users that interact with Digital Items • No technical distinction between providers and consumers • Glues all kinds of multimedia content together • Digital Rights Management infrastructure Halldór Matthías Sigurðsson

  13. Process Author Publish Playback Deliver 2D PC Visual Content VIDEO SATELLITE 3D SET-TOP BOX ANIMATION SECURE WIRELESS TEXT DVD PLAYER MPEG-4 MPEG-21 MPEG-7 Audio Content SOUND EFFECTS DIALOG GAME CONSOLE SOUNDTRACK CABLE TARGETED INTEGRATED MUSIC INTERNET DEVICE SEMANTICS CONTENT MANAGEMENT AD SERVING PULL INTERACTION DSL Scene Information DIGITAL RIGHTS MANAGEMENT CONTENTS PUSH ECOMMERCE PDA METADATA SUBSCRIBER MANAGEMENT ACCOUNTING & BILLING UNIVERSAL MM ACCESS LAYOUT CD/DVD CELLPHONE MPEG Conclusion Rights Holder End User Halldór Matthías Sigurðsson

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