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3 d tv

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3 d tv

  1. 1. Naveen Sihag3D-TELEVISION
  2. 2. Technical Overview of Integrated3DTV  Capture  Representation  Transmission  Signal Processing  Display Applications Conclusion
  3. 3. 3DTV Technical Overview3D Scene Capture Representation Coding Signal Transmission Display Conversion Its Replica
  4. 4. Observations Stereoscopic 3DTV is quite an old concept  Almost as old as its 2D counterpart 2D has flourished  3D “failed” to be popular Stereoscopic 3D is simpler  Based on human visual system and perception  Usually creates “mismatches” of various 3D cues  Current research on stereoscopic 3DTV is mostly targeted to overcome such problems
  5. 5. An Overview of Candidate 3DTVTechniques Stereoscopic 3DTV  Simplest, based on “perception”  Viewer discomfort  Autostereoscopic  Head-tracking stereoscopic Holographic 3DTV  Basic principle -1948, first holograms – 1960  Based on physics : duplication of light field  Digital holographic techniques  Holographic cameras  Experimental holographic motion pictures – 1989  Still at basic reseach phase
  6. 6. Integral Imaging Based 3DTV A principle known since 1908 Based on “capturing a scene from different angles” And then reverse projection from corresponding angles Lenslet arrays Variants can be classified under “holographic techniques”
  7. 7. 3DTV Project -Technical Overview3D Scene Capture Representation Coding Signal Transmission Display Conversion Its Replica
  8. 8. 3DTV Project - TechnicalOverview - Capture Multi-camera Single Camera Holographic Human Face and Body Specific Pattern Projection Other
  9. 9. 3DTV Project -Technical Overview3D Scene Capture Representation Coding Signal Transmission Display Conversion Its Replica
  10. 10. 3DTV Project – TechnicalOverview - Scene Representation Point Representation Based Surface Representation Based Volume Representation Based Human Face and Body Specific Representations Object Specific Representations Cloth and Garment Representation Rendering Issues Formats and Standardization Issues  DXF, OBJ, VRML, LWO, 3DS, 3DIF, U3D, Web3D, X3D, MPEG-4-AFX Texture Representation and Rendering
  11. 11. 3DTV Project -Technical Overview3D Scene Capture Representation Coding Signal Transmission Display Conversion Its Replica
  12. 12. 3DTV Project – TechnicalOverview-3D Coding 3D Coding Techniques:  Holographic Signal Compression  Multiview Video Coding  Object-based coding  3D Mesh compression  Dynamic Texture Coding  Multiple Description Schemes  Interactivity Issues  Lightfield Compression  Point-cloud Compression  MPEG4-AFX, BIFS  Interactivity Issues  Compound Bit-stream Syntax  Security and Rights Management
  13. 13. 3DTV – Standardization Activities Current Standardization Activities in 3DTV  MPEG4-3DAV  Multiview Coding
  14. 14. 3DTV Project -Technical Overview 3D Scene Capture Representation Coding Signal Transmission Display Conversion Its Replica
  15. 15. 3DTV Project–Technical Overvieaw -Transport Techniques for 3DTV  Media Transport over IP networks  QoS Controls  Protocols  Media Synchronization  RTP  DCCP  H.264 over RTP  Loss Concealment Techniques  Channel Coding Issues  Mobile 3DTV Applications
  16. 16. 3DTV Project Technical Overview 3D Scene Capture Representation Coding Signal Display Transmission Conversion Its Replica
  17. 17. Review Mtg – Technical Overview -Signal Processing Issues Modeling of Diffraction from a Systems Point of View Forward and Inverse Problems in Holographic 3DTV Signal Processing Problems in Different 3DTV Techniques  Holographic 3DTV  Stereoscopic TV  Integral Imaging  Hybrid Techniques  SAR techniques
  18. 18. 3DTV Project -Technical Overview3D Scene Capture Representation Coding Signal Display Transmission Conversion Its Replica
  19. 19. 3DTV Project – Technical Overview –Display Techniques  Holographic Displays  SLMs  DMDs  Acousto-optic Modulators  Stereoscopic Displays  Autostereoscopic Displays  Volumetric  Pseudo-volumetric  Head-mount displays
  20. 20. 3DTV Technologies – OtherApplications  Education, Training and Simulation  Scientific Simulation and Visualization  Medicine and Dentistry  Cultural Heritage  Technical Applications  Market Applications  Telepresence  Entertainment and Game Industry  Air Traffic Control  Military  Security  Communications  Computers
  21. 21. THANKS

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