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Multimedia Communications EG 371

Multimedia Communications EG 371. Dr Matt Roach Lecture 7 Video taxonomy. Video material is expanding. Customers expectations Volumes of video Dimitrova’99 14 years, Single supplier Petabyte, 1024 terabytes, 2 50 bytes Advances Internet, video phones Production Distribution.

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Multimedia Communications EG 371

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  1. Multimedia CommunicationsEG 371 Dr Matt Roach Lecture 7 Video taxonomy Multimedia communications EG 371 Dr Matt Roach

  2. Video material is expanding • Customers expectations • Volumes of video • Dimitrova’99 • 14 years, Single supplier • Petabyte, 1024 terabytes, 250 bytes • Advances • Internet, video phones • Production • Distribution Multimedia communications EG 371 Dr Matt Roach

  3. Video management Multimedia communications EG 371 Dr Matt Roach

  4. Automatic video management • How do we automatically classify video • Extremely difficult task • Broadcast video • Broad domain, narrow domain • Classification hierarchy • Top down, bottom up Multimedia communications EG 371 Dr Matt Roach

  5. Broadcast video Multimedia communications EG 371 Dr Matt Roach

  6. Information within a video • Cognitive • News • News reporter • Trevor McDonald • News report • Robbery • Money $ • Heathrow • Get away van • Describe or summarise the content of the clip Multimedia communications EG 371 Dr Matt Roach

  7. Information within a video • Formative • Pattern, shape, form • Colour statistics • % skin colour • Spatial textures • Global motion Multimedia communications EG 371 Dr Matt Roach

  8. Semantic gap lack of coincidence between formative and cognitive information • How to reduce? Multimedia communications EG 371 Dr Matt Roach

  9. Multimedia communications EG 371 Dr Matt Roach

  10. Video taxonomy Multimedia communications EG 371 Dr Matt Roach

  11. Video taxonomy Multimedia communications EG 371 Dr Matt Roach

  12. Video taxonomy Multimedia communications EG 371 Dr Matt Roach

  13. Semantic content Multimedia communications EG 371 Dr Matt Roach

  14. Automatic classification • Highest level of classification • Broad content • Fischer, MMCE’95 • Lienhart, IEEE MCS’97 • Liu, IEEE MMSP’98 • Truong, ICPR’00 • Dimitrova, ECSP’00 • Sadlier, ICEIS’00 Multimedia communications EG 371 Dr Matt Roach

  15. Genre change Genre change ta tb Multimedia communications EG 371 Dr Matt Roach

  16. Automatic classification • Defined by objects • Inter-actions • Inter-relations • Haering, IEEE MCS’99 • Hunts in wildlife • Yow, ACCV’95 • Goals in soccer Multimedia communications EG 371 Dr Matt Roach

  17. Event change Multimedia communications EG 371 Dr Matt Roach

  18. Automatic classification • Face • Brand, IEEE ICIP’01 • Torres, Pattern Recognition ’02 • Dimitrova, ECSP’00 • Genre • Word • Ball, goal Strike first Goal Multimedia communications EG 371 Dr Matt Roach

  19. Multimedia communications EG 371 Dr Matt Roach

  20. Semantic content Multimedia communications EG 371 Dr Matt Roach

  21. Editing effects Multimedia communications EG 371 Dr Matt Roach

  22. Scene and shot changes Multimedia communications EG 371 Dr Matt Roach

  23. Taxonomy compression Multimedia communications EG 371 Dr Matt Roach

  24. Video taxonomy Multimedia communications EG 371 Dr Matt Roach

  25. Discussion • What other elements could be added to the taxonomy • What are the relationships between today's lecture and compression • Bit rates • Design concerns • Any questions? Multimedia communications EG 371 Dr Matt Roach

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