3DTV Technologies 3DTV Technologies

SUBMITTED BY

Ashish sharma

26 April 2006 2

Presentation Overview

•Introduction to 3DTV project

•Introduction and Historical Overview

•Technical Overview of Integrated 3DTV

•Capture

•Representation

•Transmission

•Signal Processing

•Display

•Applications

•Conclusion

INTRODUCTION

26 April 2006 3

• 3D PROTOTYPE SYSTEMWITH REAL TIME ACQUISITION,TRANSMISSION,3D DISPLAY OF DYNAMIC SCENE•ARRAY OF CAMERA AND MULTIPROJECTED 3D DISPLAY • HIGH RESOLUTION (1024*768) STEROSCOPIC COLOUR IMAGEACHIVE GOOD QUALITY OF IMAGE

26 April 2006 4

3DTV Historical Overview

•3D counterparts are almost as old as 2D

•Stereoscopic 3D pictures – 1838 (Wheatsone)

•Popular by 1844 in USA and Europe

•2D Photography - 1839

26 April 2006 A

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

26 April 2006 6

3DTV Project -Technical Overview

3D Scene

Its Replica

Capture Representation Coding

Signal Conversion

DisplayTransmission

26 April 2006 7

3DTV Project - Technical Overview - Capture

• Multi-camera• Single Camera• Holographic• Human Face and Body Specific• Pattern Projection• Other

26 April 2006 8

3DTV Project -Technical Overview

3D Scene

Its Replica

Capture Representation Coding

Signal Conversion

DisplayTransmission

26 April 2006 9

3DTV Project -Technical Overview

3D Scene

Its Replica

Capture Representation Coding

Signal Conversion

DisplayTransmission

26 April 2006 10

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

26 April 2006 11

3DTV – Standardization Activities

•Current Standardization Activities in 3DTV•MPEG4-3DAV

•Multiview Coding

26 April 2006 A 12

3DTV Project -Technical Overview

3D Scene

Its Replica

Capture Representation Coding

Signal Conversion

DisplayTransmission

26 April 2006 13

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

26 April 2006 14

3DTV Project Technical Overview

3D Scene

Its Replica

Capture Representation Coding

Signal Conversion

DisplayTransmission

26 April 2006 A 15

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 April 2006 16

3DTV Project -Technical Overview

3D Scene

Its Replica

Capture Representation Coding

Signal Conversion

DisplayTransmission

26 April 2006 17

3DTV Project – Technical Overview – Display Techniques

– Holographic Displays•SLMs•DMDs•Acousto-optic Modulators

– Stereoscopic Displays– Autostereoscopic Displays– Volumetric– Pseudo-volumetric– Head-mount displays

26 April 2006 © 18

3DTV Review Mtg – Technical Overview - Display Techniques

• Autostereoscopic Displays (cont’d):– Pseudo-volumetric FogScreen

A

3DTV Review Mtg – Technical Overview - Display Techniques

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26 April 2006 21

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

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

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FUTURE WORK

2D TV-Display

Autostereoscopic Display

Shutter-Glases

Anaglyph

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a) Stereo Disparity Test

Distance of Stereo Disparity is changed according to “distance from Viewer to

Screen” or “Display Device Screen Size or TV/Monitor Inch Size”.

VG-870A/B can set this distance at 1 pixel step as desired. Left Frame Right Frame

Stereo Disparity

3D Camera

3) Test Patterns

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3D TV/Monitor Market

3D Games with 120Hz Monitor and Shutter Glasses from Nvidia

3D Digital Cinema and Contents

3D TV and 3D BD Player (Panasonic)

31 march 26

Thank you....