3 dimensional television (2)
TRANSCRIPT
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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
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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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