MPEG21

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MPEG-21

• Manohar Nikkam
• Multimedia Communications
• Fall 2001

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MPEG Standards
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Why not MPEG-7?

• MPEG-7 deals mainly with providing descriptions
  of multimedia content

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What is MPEG-21?

• The Multimedia framework
• Purpose
• Enables all-electronic creation, delivery, trade
  of digital multimedia content.
• Basic architectural concept is Digital Item

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Digital Item
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Digital Item Declaration

• Digital Item Declaration Language (DIDL)
• The DIDL is a language based on an XML schema
• Distribution across a network
• Distribution Item contains references to places
  on the network from which the resources can be
  retrieved
• Distribution as a stand-alone object
• Distribute with its resources

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Elements of MPEG-21
Examples Container Item Resource

• Examples
• Unique Identifiers
• Content Descriptors

• Examples
• Storage Management
• Content Personalization

User B
User A
Transaction/Use/Relationship Digital
Item Authorization/Value Exchange

• Examples
• Encryption
• Authentication
• Watermarking

• Examples
• Resource Abstraction
• Resource Mgmt (QoS)

• Examples
• Natural and Synthetic
• Scalability

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Elements of MPEG-21 (contd.)

• Digital Item Declaration
• The structure of the fundamental unit of
  distribution and transaction
• Digital Item Identification Description
• What content that actually is delivered?
• Digital Item Management and Usage
• How the content is used and delivered?

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Elements of MPEG-21 (contd.)

• Intellectual Property Management and Protection
  (IPMP)
• How the rights are controlled with respect to
  each user?
• Terminals and Networks
• Is the content is delivered over cable or cell
  phone?
• Event Reporting
• Is it natural or synthetic content, how does the
  content scale?

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Applications

• Digital libraries
• Broadcasting usage
• Publishing
• Music/video releases
• Asset management
• Cataloguing in publication
• Trade transactions
• Consent filtering

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References

• http//mpeg.telecomitalialab.com/
• http//www.w3.org/2000/12/drm-ws/Overview.html

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Thank You