3D TV is the kind of television set that projects a television program in a three dimensional field. For example you are watching a sci-fi movie on television and suddenly the villain throws a bomb at the hero. The bomb blasts and you see the debris and the small rock particles to come flying beside you. Yes, you might duck your head in haste but that's all part of the experience and yes, this is what a 3D TV does. In short, 3D TV is the new face of entertainment which makes you live what you're seeing on Screen and just not mere watching it.
3D projections have always been in practice since the days when photography had just started in the nineteenth century. Starting from the first stereoscope that could take 3D photographs to Kinematoscope which projected the first 3D movie in 1922, recent days of advanced technology gave us the LCD, Plasma TV and HDTV resulting in our living rooms being adorned with a Screen as giant as the size of the entire wall, a few centimeters thick with unbelievable picture clarity.
3D TV
Hence the question was what will the TV Makers provide next? What is the way forward from here? The answer lies in the 3D TVs where movie and game characters virtually run about in your living room! In discussing what technologies or techniques really go behind the 3D TV mentioned may be made of:
• Anaglyph images
• Polarization
• Alternate Frame Sequencing
• Autostereoscopy
Anaglyph images consists of the images being made up of two layers in two different colors of red and cyan, superimposed one on another but slightly offset to give the required depth. The 3D glasses are two bi-colored resulting in the human eye taking in one color each. The brain later fuses these two images into one realistic three dimensional image.
Polarization on the other hand refers to the oscillation orientations of certain waves reflecting their specific directions of vibrations and propagation. Examples of such waves are electromagnetic waves and acoustic waves. This is commonly used in 3D cinemas, but is not uncommon with 3D TVs.
In case of Alternate Frame Sequencing, the TV program is filmed with 3D films or more than one camera. Thereafter these images are placed on a single filmstrip in an alternate eye order. That is, the left eye and right eye images are placed one after the other and the film run for double the normal frame-per-second measurement. Usually, they are run for 48 frames per second instead of the usual 24 frames per second.
Moreover, this entire set up have the super LCD shutter glasses having radio receivers which receives instruction and the glasses open and close the eye lenses in rapid succession corresponding to the image on Screen.
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