Various emulation technology 3D image video

The basic principle of creating three-dimensional images incorporated in the supply to the left and right eyes of the selected video images. This can be achieved in various ways, we consider the following basic methods stereorizatsii image.


1) Most developing technology for today is "Active Shutter" This method of creating three-dimensional images are also called eklipsnym (English Eclipse - eclipse) or svetoklapannym. To separate the images it uses special valves in the glasses. Let us explain a person wears glasses that are synchronized with the image on the screen, then using special liquid-crystal shutters built into the glasses, starts alternating closing left and right "lenses" with a frequency of at least 60 Hz. The main companies are promoting this technology to the market is NVIDIA, which actively promotes its called NVIDIA 3D Vision. This format is the base for the Association of 3D Blu Ray 1080i.

2) Perhaps the simplest and most common format for creating three-dimensional image Anaglyph Points are also needed as in the previous case, but they consist of a film of red and blue, so points in many ways are cheap and disposable. This method has many disadvantages as a botched rendition, and also has a strong negative eyestrain after watching the film with a particular 3D image.

3) Use the following effect is further intended to give humanity free 3d vision - this is possible thanks to the effects of polarization This technology is based on the use of polarizing filters in the projectors, and glasses. Separation of images for left and right eye is due at an angle of 90 degrees, the filters are secured "cut off" image. However, in this case needs a special silver coated screen, compensating for the loss of brightness due to polarization. This system of three-dimensional images, in particular, used in cinemas IMAX. Such technology is called linear polarization. And its main drawback is the need to keep your head while watching the same level, when bending the head effect is lost.

4) Do not ease the use of glasses leads to the creation of more and more interesting technologies, such as autostereoscopic they allow to obtain 3D-images without glasses. Using a hologram effect, when the surface consists of narrow vertical stripes, alternating images for left and right eyes. Before the screen is a bitmap filter, obscures the image for the "wrong" eye.