3D TV TECHNOLOGY

CONTENTS AIMS TO PROJECT 3D TV INTRODUCTION BASICS OF 3D TV OVERVIEW OF THE SYSTEMS ARCHITECTURE OF 3D TV MUTIVEW AUTO STEREOSCOPIC DISPLAY 3D DISPLAY APPLICATIONS OF 3D TV ADVANTAGES AND DISADVANTAGES CONCLUSION

AIMS TO PROJECT 3DTV To provide 3D picture with smell and touch Virtual reality Contribution of university research institute and companies

INTRODUCTION Three dimensional TV is expected to be next revolution in the TV history. They implemented a 3D TV prototype system with real-time acquisition, transmission and 3D display of dynamic scenes. This is the first real-time end-to-end 3D TV system with enough views and resolution to provide a truly immersive 3D experience.

BASICS OF 3D TV Binocular parallax-Binocular parallax defers to the ability of the eyes to see a solid object and a continuous surface behind that object even though the eyes see two different views. Motion parallax-It means information at the retina caused by relative movement of objects as the observer moves to the side (or his head moves sideways).

CONTD… Depth perception-It allows the beholder to accurately gauge the distance to an object. It is the visual ability to perceive the world in three dimensions. Stereographic images- It means two pictures taken with a spatial or time separation that are then arranged to be viewed simultaneously.

CONTD… Stereoscope-It is an optical device for creating stereoscopic (or three dimensional) effects from flat (two-dimensional) images; D.Brewster first constructed the stereoscope in 1844. Holographic Images-A luminous, 3D, transparent, colored and nonmaterial image appearing out of a 2D medium, called a hologram. A holographic image cannot be viewed without the proper lighting.

Overview of the System Distributed architecture Scalability Multiview video rendering High-resolution 3D display Computational alignment for 3D display

Model Based System One approach to 3D TV is to acquire multiview video from sparsely arranged cameras and to use some model of the scene for view interpolation.

Light Field System A light field represents radiance as a function of position and direction in regions of space free of occludes. The light field describes the amount of light traveling through every point in 3D space in every possible direction.

Architecture of 3D TV Acquisition Transmission Display unit

Acquisition The acquisition stage consist of an array of the hardware synchronized cameras. CCD image Sensors MPEG-2 Encoding PCI card

Transmission Gigabit Ethernet A transmission technology, enables super net to deliver enhanced network performance.

Decoder & Consumer Processing The receiver side is responsible for generating the appropriate images to be displayed.

Multiview Auto Stereoscopic Display Holographic Displays Holographic Movie Volumetric Displays Parallax Displays Multi Projector

3D Display 16NEC LT-170 projector

APPLICATION OF 3D TV IMAX screen OMNIMAX screen

Advantages and Disadvantages

Conclusion Most of the key ideas for 3D TV systems presented in this paper have been known for decade, such as lenticular screens, multi projector 3D displays, and camera array for acquisition. This system is the first to provide enough view points and enough pixels per view points to produce an immersive and convincing 3D experience. Another area of future research is precise color reproduction of natural scenes on multiview display.

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