Challenges and requirements for a next generation service for video content sharing

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Challenges and requirements for a next generation service for video content sharing

  1. 1. Challenges and Requirements for a Next- Generation Service for Video Content Sharing Korea-EU Cooperation Forum on ICT June 16-18, 2008 Seoul, South Korea Wesley De Neve, Peter Lambert, Erik Mannens, Yong Man Ro, Rik Van de Walle Ghent University – IBBT (Belgium)Information and Communications University (South Korea)
  2. 2. Overview• Research labs – Multimedia Lab – Image and Video Systems Lab• Next-generation video content sharing – challenges – possible research topics 2/15
  3. 3. Overview• Research labs – Multimedia Lab – Image and Video Systems Lab• Next-generation video content sharing – challenges – possible research topics 3/15
  4. 4. Multimedia Lab (MMLab)• Belgian research group headed by prof. Rik Van de Walle – Ghent University • about 25,000 students – IBBT (Institute for BroadBand Technology) • fosters cooperation between different universities and industrial partners in Belgium• People – 6 staff members – currently 25 researchers (Ph.D. students and “others”) 4/15
  5. 5. Main Research Activities MMLab• Video coding – H.264/AVC, Scalable Video Coding, Distributed Video Coding• Content adaptation – scalable coding formats – transcoding• GPU-based video processing• Standardization of multimedia systems and applications – MPEG, JVT, and W3C 5/15
  6. 6. Image and Video Systems Lab (IVY Lab)• Korean research group headed by prof. Yong Man Ro – part of Information and Communications University (ICU) • about 1,200 students • specialized in ICT research and education • will merge with KAIST in the course of next year• People – 3 staff members – currently 14 researchers (Ph.D. students and “others”) 6/15
  7. 7. Main Research Activities IVY Lab• Video processing – quality measurement and video adaptation• Multimedia search and retrieval – face detection and recognition – concept modeling, content classification, and annotation• Medical imaging• Standardization of multimedia systems and applications – MPEG 7/15
  8. 8. Overview• Research labs – Multimedia Lab – Image and Video Systems Lab• Next-generation video content sharing – challenges – possible research topics 8/15
  9. 9. First Observation• Quality and duration of User-Generated Content (UGC) – now limited because of technical difficulties – will likely increase in the near future, resulting in the use of high-definition UGC and video content sharing • necessary for an immersive multimedia experience in an IPTV environment (high-resolution displays)• E.g., YouTube and Flickr – both already offer several spatial resolutions need for content adaptation in order to target both mobile and IPTV environments 9/15
  10. 10. Second Observation• Amount of UGC is increasing at an exponential rate – as of April 2008, 83.4 million videos and 3.75 million user channels hosted on YouTube – as of November 2007, more than two billion images hosted on Flickr (with uploads of 6 000 items per minute)• User query on YouTube may easily return more video content than can ever be watched in a person’s lifetime need for efficient, user-centric annotation and retrieval 10/15
  11. 11. Other Observations (1/2)• Increasing popularity of semantic web technologies – RDF, OWL, SPARQL• Increasing use of mobile devices – will have no restrictions in terms of bandwidth and computational power in the near future• Increasing popularity of IPTV – e.g., in April 2008, hanaTV had 900,000 subscribers in Korea• Increasing attention for video with extra “functionality” – 3DTV, super HD, sensory effects 11/15
  12. 12. Other Observations (2/2)• Increasing importance of digital rights management• Increasing proliferation of different technologies and formats for building web applications (i.e., mashups) – AJAX, Silverlight, Flash, JavaFX, AIR, XUL, Gears, ...• Need for other business models – e.g., YouTube does not make a profit (yet) due to high bandwidth and storage costs 12/15
  13. 13. Outline Possible Cooperation (Short Term)• Goal: development of an adaptation and delivery framework for personalized content retrieval, using semantic web tools Annotation Universal Multimedia Experience (“content as you like it”) Retrieval Adaptation Universal Multimedia Access(“content everywhere, anyhow”) Delivery Tag cloud: adaptation, delivery, folksonomy, IPTV, mobile, personalized, RDF, retrieval, semantic web, social 13/15
  14. 14. Outline Possible Cooperation (Long Term) • Goal: development of an adaptation and delivery framework for personalized and immersive multimedia experiences super HD / 3DTVImmersive Multimedia Experience (“rollercoaster experience”) sensory effects Annotation Universal Multimedia Experience Retrieval Adaptation Universal Multimedia Access Delivery 14/15
  15. 15. Thank you! 15/15

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