Did you see the 3D version of Titanic? In recent years, domestic 3D films have been introduced, and the impact has been unprecedented. There are a large number of products on the market that include 3D functions, such as 3D TVs, Blu-ray 3D players, 3D set-top boxes, etc., although everyone is Use, are looking, but not many people know, 3D brings everyone the shocking visual effects produced by the principle.
3D imaging principle The English name of 3D is "Three Dimensions". The Chinese understanding is three-dimensional, which means three-dimensional space. The things we observe through the eyes are three-dimensional, and the information collected by different eyes is different. This is to use this to separate the sights seen by our left and right eyes by wearing 3D eyes. Come and blur the degree of recognition of the scene to produce the desired 3D impact. Currently, the most mature 3D imaging technologies include polarized 3D technology and active 3D technology.
3D Titanic
Polarized 3D technology
Polarized 3D technology can also be referred to as polarized 3D technology, and English refers to Polarized 3D. Not flash 3D technology is also referred to as polarized 3D technology. The so-called polarizing 3D is derived from a characteristic of light, which relies on the characteristics that the light has a vibration direction to perform the decomposition of the image. The first step is to divide the original image into two groups, vertical polarized light and horizontal polarized light, and then wear 3D glasses. After special treatment, each lens is different. Each lens allows only one direction. Polarized light passes through, so that the pictures are recombined to bring a stereoscopic image.
Polarized 3D only allows unidirectional light to pass
The characteristics of not flashing 3D I believe everyone will not know, that is, there will be no smear on the screen, the damage to human eyes is relatively low, comfort is high, the eyes are not easy to produce fatigue, if you just watch a 3D movie It's not worthwhile to engage yourself if you are very tired. Can have such an effect, placed in its not easy to flash, the National Radio and Television Product Quality Supervision and Inspection Center has been tested and reported results, no flash 3D flicker, refresh rate and other key indicators are far superior to the traditional shutter 3D The disparity is astonishing. Simply put, using flashless 3D technology to view the picture can achieve almost no flicker. However, this kind of technology has a high requirement for the display screen, at least the refresh rate should reach 240HZ, and the definition of the screen should be more than the original, which is also the common problem of the polarized 3D technology, for the pursuit of the definition of the picture quality. For the audience, it may not be suitable.
Active 3D technology Active 3D technology can also be called shutter 3D technology, and English is Active Shutter 3D. The active 3D technology is realized by greatly improving the refresh rate of the picture. It divides the image into two groups according to frames, forms the left and right corresponding pictures, continuously interleaves the generated images, and then synchronizes the lenses of the shutter glasses. On/Off operation sees 3D images. Different from polarized 3D, he can restore the original resolution of the screen and enjoy full HD 3D images easily.
Active 3D left and right screen mapping
Active 3D is not perfect. If you look at 3D movies for too long, you may experience eye fatigue, dizziness or even vomiting. Active 3D eyes are expensive and require charging. Thick, with a long time, ears will be very tired. Choose dizziness and vomiting for the TV. Don't know if you don't have the guts. Of course it's a bit exaggerated, but everything depends on your choice.
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