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

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. Overview
• Research labs
– Multimedia Lab
– Image and Video Systems Lab
• Next-generation video content sharing
– challenges
– possible research topics
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3. Overview
• Research labs
– Multimedia Lab
– Image and Video Systems Lab
• Next-generation video content sharing
– challenges
– possible research topics
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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”)
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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
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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”)
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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
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8. Overview
• Research labs
– Multimedia Lab
– Image and Video Systems Lab
• Next-generation video content sharing
– challenges
– possible research topics
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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
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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
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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
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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
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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
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14. Outline Possible Cooperation (Long Term)
• Goal: development of an adaptation and delivery framework
for personalized and immersive multimedia experiences
super HD / 3DTV
Immersive Multimedia Experience
(“rollercoaster experience”)
sensory effects
Annotation
Universal Multimedia
Experience
Retrieval
Adaptation
Universal Multimedia
Access
Delivery
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15. Thank you!
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