Presentation of the W3C Media Annotations Working Group Activities

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Presentation of the W3CMedia Annotations Working
GroupActivities

• February 2009
• Lausanne, Switzerland
• Víctor Rodríguez, Jaime Delgado, Rubén Tous
• Distributed Multimedia Applications Group
• Universitat Politècnica de Catalunya
• on behalf of
• W3C Media Annotations Working Group

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Introduction

• W3C Web Video Group to make video a "first class
  citizen" of the Web
• Timed Text Working Group
• Media Fragments Working Group
• Media Annotations Working Group
• Media Annotations Working Group (MAGW) to
  provide an ontology and API designed to
  facilitate cross-community data integration of
  information related to media objects in the Web,
  such as video, (audio and images).
• M16031 Liaison Statement from W3C to MPEG
  (06/12/2008)

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Working policies

• Meetings
• Weekly teleconference
• Every 3 months approx., face to face meeting
• Decisions taken mostly by consensus
• Participants About 25 people from 13
  organizations (both industry and university)
• Patents W3C seeks to issue Recommendations that
  can be implemented on a Royalty-Free basis

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MAGW Vision

• User sees an API, simple
• handling only texts and URI
• (no special knowledge on
• Semantic Web required)
• An Ontology relates the
• different metadata formats
• (this is hidden to the user)
• Mapping is provided by MAGW

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Some formats in sight

• Formats
• XMP. This is the articulating base
• DublinCore
• ID3 (metadata in audio)
• EXIF (metadata in images)
• Media RSS
• IPTC (news)
• MPEG7
• TV-Anytime
• FRBR (multilevel description)
• Youtube Data API Protocol
• Other SMPTE, LOM, METS, Cablelabs ADI 2.0, MIX,
  VRA etc.

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Documents

• Ontology for Media Object Use Cases and
  Requirements
• Ontology for Media Object 1.0
• API for Media Object 1.0
• Other deliverables
• A W3C Working Group Note for mapping the ontology
  to existing standards and solutions.
• Collection of a corpus of metadata to demonstrate
  the mapping and translation.
• Implementation and interoperability reports.
• Tutorial or primer resources (if suitable and if
  resources are available).
• Propose eventually a new charter for follow on
  work.
• 2.0 version pursues integration with other W3C
  recommendations (fragments etc.)

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Use Cases Requirements (I)

• W3C Working Draft 19 January 2009
• 9 use cases, 13 requirements
• r01 Providing methods for getting structured or
  unstructured metadata out of media objects in
  different formats
• r02 Providing methods for setting metadata in
  media objects in different formats
• r03 Providing in the API a means for supporting
  structured annotations
• r04 Providing a means to access custom metadata
• r05 Providing the ontology as a simple set of
  properties

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Use Cases Requirements (II)

• Requirements (continued)
• r06 Specifying an internal or external format
  for the ontology
• r07 Introducing several abstraction levels in
  the ontology
• r08 Being able to apply the ontology / API for
  collections of metadata
• r09 Taking different roles in metadata
  processing into account
• r10 Being able to describe fragments of media
  objects
• r11 Providing the ontology in slices of
  conformance
• r12 Provide support for controlled vocabularies
  for the values of different properties
• r13 Allow for different return types for the
  same property

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MAGW MXM Analysis

• There is a joint set of desired features between
• MAGW API
• MXM Video Metadata API (8.8 in N10290 MXM
  Architecture and Technologies)
• Video metadata creation APIs ? difficult to be
  achieved
• Video metadata editing APIs ? difficult to be
  achieved
• Video metadata parsing APIs
• Video metadata presentation APIs
• However, setting methods much more complex to
  be implemented.
• Timeline may be a problem

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Milestones

• First Public Working Draft, Last Call WD,
  Candidate Recommendation, Proposed
  Recommendation, Recommendation.
• August 2008 First teleconference

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More information

• Chairs of W3C Media Annotation Working Group
• Soohong Daniel Park (soohong.park_at_samsung.com)
• Joakim Soderberg (joakim.soderberg_at_ericsson.com)
• For more info, there is a public mailing list
• public-media-fragment_at_w3.org.
• (about 500 messages exchanged from Aug.08)
• Webpage
• http//www.w3.org/2008/WebVideo/Annotations/

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Presentation of theMedia Annotations Working
Group

• February 2009
• Lausanne, Switzerland
• THANKS!
• Questions?