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An Assessment of 3DTV Technologies NAB-2006 - Las Vegas - 26 April 2006 © Copyright 2006 Levent Onural Thomas Sikora Jörn Ostermann Bilkent Un.Tech. Univ.

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Presentation on theme: "An Assessment of 3DTV Technologies NAB-2006 - Las Vegas - 26 April 2006 © Copyright 2006 Levent Onural Thomas Sikora Jörn Ostermann Bilkent Un.Tech. Univ."— Presentation transcript:

1 An Assessment of 3DTV Technologies NAB-2006 - Las Vegas - 26 April 2006 © Copyright 2006 Levent Onural Thomas Sikora Jörn Ostermann Bilkent Un.Tech. Univ. Of Berlin Univ. Of Hanover Aljoscha Smolic M. Reha Civanlar John Watson Fraunhofer Inst.-HHI Koç Univ. Univ. Of Aberdeen

2 26 April 2006 Levent Onural --- www.3dtv-research.org © Copyright 2006 2 Presentation Overview Introduction to EC funded 3DTV project Introduction and Historical Overview Technical Overview of Integrated 3DTV Capture Representation Transmission Signal Processing Display Applications Conclusion

3 26 April 2006 Levent Onural --- www.3dtv-research.org © Copyright 2006 3 EC Funded 3DTV Project 19 Partners from seven European countries Universities, Research Institutions, SMEs About 200 contributors All technical aspects of 3DTV are covered A four year project (2004-2008) Network of Excellence

4 26 April 2006 Levent Onural --- www.3dtv-research.org © Copyright 2006 4 EC Funded 3DTV Project Partners: Bilkent Univ – Turkey (Coordinator) BIAS – Germany CLOSPI-BAS – Bulgaria De Montfort Univ – UK Fraunhofer Inst. HHI – Germany FogScreen – Finland Un. Of Ilmenau - Germany

5 26 April 2006 Levent Onural --- www.3dtv-research.org © Copyright 2006 5 EC Funded 3DTV Project Partners (Contd): Tampere Un. Of Tech – Finland ITI-CERTH – Greece Koç Univ. – Turkey METU – Turkey Momentum – Turkey Max Planck Inst. – Germany U. West Bohemia Plzen – Czech Rep

6 26 April 2006 Levent Onural --- www.3dtv-research.org © Copyright 2006 6 EC Funded 3DTV Project Partners (Contd): U. Of Hanover – Germany Tech. Univ. Berlin – Germany U. Of Tuebingen - Germany U. Of Aberdeen - UK Yogurt Tech. – Turkey

7 26 April 2006 Levent Onural --- www.3dtv-research.org © Copyright 2006 7

8 26 April 2006 Levent Onural --- www.3dtv-research.org © Copyright 2006 8 3D Scene Capture Representation Coding Signal Conversion Display Transmission Its Replica 3DTV Technical Overview

9 26 April 2006 Levent Onural --- www.3dtv-research.org © Copyright 2006 9 3DTV Historical Overview Realistic ghost-like illusions have always been a goal 2D (still or motion) picture technologies are well developed and well accepted 3D counterparts are almost as old as 2D Stereoscopic 3D pictures – 1838 (Wheatsone) Popular by 1844 in USA and Europe 2D Photography - 1839

10 26 April 2006 Levent Onural --- www.3dtv-research.org © Copyright 2006 10 3DTV Historical Overview 3D counterparts are almost as old as 2D (continued) 2D Movies – 1867 (Lincoln) 3D stereoscopic cinema – early 1900 2D TV – 1920 (Belin and Baird) Stereoscopic 3DTV – 1920 (Baird) Stereoscopic 3D cinema was popular by 1950s Stereoscopic 3DTV broadcast – 1953 First commercial 3DTV broadcast – 1980s

11 26 April 2006 Levent Onural --- www.3dtv-research.org © Copyright 2006 11 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

12 26 April 2006 Levent Onural --- www.3dtv-research.org © Copyright 2006 12 An Overview of Candidate 3DTV Techniques 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

13 26 April 2006 Levent Onural --- www.3dtv-research.org © Copyright 2006 13 An Overview of Candidate 3DTV Techniques 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

14 26 April 2006 Levent Onural --- www.3dtv-research.org © Copyright 2006 14 Past Decade NHK – Stereoscopic 3D-HDTV (Since 1991) 2002 FIFA World Cup broadcast in Stereo 3D-HDTV (ETRI-Korea) European ATTEST project (2002-2004) Backward compatible to DVB Uses depth data (efficiently compressed by H.264/AVC) Matches MPEG4 with minor modifications MERL projection-based system (2004)

15 26 April 2006 Levent Onural --- www.3dtv-research.org © Copyright 2006 15 3DTV Project -Technical Overview 3D Scene Its Replica Capture Representation Coding Signal Conversion Display Transmission

16 26 April 2006 Levent Onural --- www.3dtv-research.org © Copyright 2006 16 3DTV Project - Technical Overview - Capture Multi-camera Single Camera Holographic Human Face and Body Specific Pattern Projection Other

17 26 April 2006 Levent Onural --- www.3dtv-research.org © Copyright 2006 17 3DTV Project -Technical Overview 3D Scene Its Replica Capture Representation Coding Signal Conversion Display Transmission

18 26 April 2006 Levent Onural --- www.3dtv-research.org © Copyright 2006 18 3DTV Project – Technical Overview - 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

19 26 April 2006 Levent Onural --- www.3dtv-research.org © Copyright 2006 19 3DTV Project -Technical Overview 3D Scene Its Replica Capture Representation Coding Signal Conversion Display Transmission

20 26 April 2006 Levent Onural --- www.3dtv-research.org © Copyright 2006 20 3DTV Project – Technical Overview-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

21 26 April 2006 Levent Onural --- www.3dtv-research.org © Copyright 2006 21 3DTV – Standardization Activities Current Standardization Activities in 3DTV MPEG4-3DAV Multiview Coding

22 26 April 2006 Levent Onural --- www.3dtv-research.org © Copyright 2006 22 3DTV Project -Technical Overview 3D Scene Its Replica Capture Representation Coding Signal Conversion Display Transmission

23 26 April 2006 Levent Onural --- www.3dtv-research.org © Copyright 2006 23 3DTV Project– Technical Overview - 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

24 26 April 2006 Levent Onural --- www.3dtv-research.org © Copyright 2006 24 3DTV Project Technical Overview 3D Scene Its Replica Capture Representation Coding Signal Conversion Display Transmission

25 26 April 2006 Levent Onural --- www.3dtv-research.org © Copyright 2006 25 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

26 26 April 2006 Levent Onural --- www.3dtv-research.org © Copyright 2006 26 3DTV Project -Technical Overview 3D Scene Its Replica Capture Representation Coding Signal Conversion Display Transmission

27 26 April 2006 Levent Onural --- www.3dtv-research.org © Copyright 2006 27 3DTV Project – Technical Overview – Display Techniques –Holographic Displays SLMs DMDs Acousto-optic Modulators –Stereoscopic Displays –Autostereoscopic Displays –Volumetric –Pseudo-volumetric –Head-mount displays

28 26 April 2006 Levent Onural --- www.3dtv-research.org © Copyright 2006 28 3DTV Review Mtg – Technical Overview - Display Techniques Autostereoscopic Displays (contd): –Pseudo-volumetric FogScreen

29 26 April 2006 Levent Onural --- www.3dtv-research.org © Copyright 2006 29 3DTV Review Mtg – Technical Overview - Display Techniques

30 26 April 2006 Levent Onural --- www.3dtv-research.org © Copyright 2006 30

31 26 April 2006 Levent Onural --- www.3dtv-research.org © Copyright 2006 31 3DTV Technologies – Other Applications 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

32 26 April 2006 Levent Onural --- www.3dtv-research.org © Copyright 2006 32

33 26 April 2006 Levent Onural --- www.3dtv-research.org © Copyright 2006 33

34 26 April 2006 Levent Onural --- www.3dtv-research.org © Copyright 2006 34

35 26 April 2006 Levent Onural --- www.3dtv-research.org © Copyright 2006 35 Thank you.... Levent Onural, Thomas Sikora, Jörn Ostermann, Aljoscha Smolic, M. Reha Civanlar and John Watson www.3dtv-research.org


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