| In order to represent complex three-dimensional environments in real time, efficient output devices are required. When displaying a stereo image on a screen, special glasses are often required. But a new generation of displays provides greater flexibility while maintaining high image quality - even without glasses!
Immersion is the state of consciousness where an immersant's awareness of physical self is diminished or lost by being surrounded in an engrossing total environment; often artificial1.
In order to create a feeling of immersion, a perfect interplay of various components is needed - software and hardware must be perfectly matched. The representation of complex three-dimensional environments in real time represents a great challenge for the current electronic devices. Amazingly, a German company direct from the Black Forest in South Germany, offers exactly the displays which are designed for this applications and the best about it, they work without glasses.
3D technology is everywhere interesting, where it's important to display a simulated reality and its physical properties in an interactive manner. Whether in industrial design, in the medical sector or in edutainment, the 3D without glasses visualization opens up entirely new possibilities in many industries dealing with virtual reality.
So far, however, this particular area of the 3-D technology seems to be immature. Due to the necessity of auxiliary means such as anaglyph glasses ( Red-Green-Glasses) or shutter glasses to few companies seem to question if this technology can provide a real added value. All this has now changed. A German company from the Black Forest developed and has been producing since 2006 autostereoscopic 3D displays: Glasses-free three-dimensional vision. The TRIDELITY AG has been pioneering in the development of this cutting edge technology and provides 3D without glasses with high quality. But how does the spatial representation really work?
Biology as a model
From the age of eight months, human beings are able to physically see and detect depth differences. This stereoscopic vision arises from a complex interplay between the two eyes and the brain. Our eyes are slightly offset from each other and therefore watch a scene from two different perspectives.
Having these two perspectives, the brain is able to calculate a spatial image in connection with the information of the viewing distance. The 3D Monitors exploit this principle by projecting multiple images simultaneously. A special filter called parallax barrier separates these perspectives and ensures that each one of our eyes receive a slightly different image which represents a shifted perspective of the scene.
This filter can be thought of as a sort of slanted stripe-mask, which is mounted in front of the display: The light of each pixel is therefore deflected in different directions. In order to get the 3D effect the three-dimensional content to be displayed must have been previously recorded from several different perspectives as well. On a special LCD display all different perspectives or pictures are displayed at the same time nested together according to a certain sub-pixel pattern (multiplexed). The color of the image is then separated again by the specially developed filter element, the parallax barrier, and appears to the viewer as three dimensional.
For more information about 3D without glasses please move on http://www.tridelity.com/ |
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