3 dimensional television (2)

8/13/2019 3 Dimensional Television (2)

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3 DIMENSIONAL

TELEVISION

NARESH KUMARM.SC. ELECTRONICSROLL NO. 17KURUKSHETRA UNIVERSITY KURUKSHETRA


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Why 3 D TVTechnologiesTV SetsBroadcastAdvantagesDisadvantagesFuture trends


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Why 3D TV

The revolution in visual media over decades:Silent films, sounds was added.Black & White TV, then color was introduced.Computer imaging & special Digital effectsThree dimensionality in TV.


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Technology

With glasses: Without glasses :

Anaglyphic 3DPolarization 3DEclipce methodInterference filtertechnology

Auto 3D(Autostreoscopic3D)


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Anaglyphic 3D

creating imaging that is three dimensionalthrough the use of two images that areused with the primary colors of blue andred.

The red lens provides a red filter over theleft eye while the right lens creates a blue

filter over the right eye.


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Polarization 3D

two images are projectedsuperimposed onto the samescreen through differentpolarizing filters.

Similarly polarized lightpasses by each filter &blocks orthogonalypolarised light ,eacheye sees one ofprojected images.


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Eclipse

MethodWhen one eye views the full-

color image and the other eyeviews the monochrome image,

The color comes from the full-color image. The depth comesfrom the monochrome image.


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Interference Filter technology

Dolby 3D uses specificwavelengths of red, green, andblue for the right eye, anddifferent wavelengths of red,

green, and blue for the left eye.


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Auto Stereoscopy

Auto stereoscopic displays areable to provide binocular depth

perception without the hindranceof specialized filter/shutter glasses.

It fool the brain so that a 2Dmedium can display a 3D image byproviding a stereo parallax viewfor the user


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T V Sets3 d- ready TVSets

Which can operate in 3Dmode in conjunction with aset top box LCD

shutter glasses.

Examples Viera TC-P50VT200 ,UN46C7000

,TD 42F, DIRAC TV

3 d Full TV

setsThese sets include

Panasonic Full HD3D .

Toshiba LCD 3DTV(1280 *720resolution)


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Broadcast3 D channels

Cablevision launched a 3D version of

its MSG channel on March 24, 2010. June 11, 2010, ESPN launched a newchannel, ESPN 3D.British Sky Broadcasting(Sky) launched

a limited 3D TV broadcast service onApril 3, 2010. European pay-TV networks are alsoplanning 3D TV channels


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List of 3D channelsChannel Country(s) Additional Info.

HIGH TV 3D Worldwide Entertainment

Cinema 3D United States DirecTV only

3net United States DirecTV only

Sky 3D United Kingdom Sky only

Foxtel 3D Australia Foxtel Only

HD1 Belgium (and otherEuropean countries) Free to Air

Sky 3D Germany, Austria Sky only

Anixe 3D German-speakingcountries Free to Air

3D-TV Finland

Sport 5 3D Israel

nShow 3D Poland ITI Group only


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Diagram of 3D TV System


14/18 Broadcast of 3D TV


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Advantages of 3D TV

Now, with the cost of the technologygoing down, people are clamoring for 3DTV systems into their own homes.Simulates cinema experience because ofthe big-screen effect.

A very simple system and quite easy toset up.It provides greater depth & immersion forviewing.


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Disadvantages

More costly battery-powered, shutter 3Dglasses, if this method is chosen by the

crowd.Some viewers have complained of headachesand visual problems after watching 3D TVand films.Viewers need to be in the ideal watchingzone, or the sweet spot, or else they wontbe able to see the 3D effect very well.No defined industry standard for 3dHardware ,software & TV components.


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Future Trends

There are numerous applications where 3D TVcan be used. scientific visualization and measurementmedical imaging telepresence gaming movies

commercial television broadcast.The greater adoption of 3D TV in the nearfuture is more inclined toward gaming,movies, and television broadcast.


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3 dimensional television (2)

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