Traditional Culture Encyclopedia - Photography and portraiture - Can the projector play 3D movies? Is the effect the same?

Can the projector play 3D movies? Is the effect the same?

It depends on whether your projector meets the following conditions:

1, the projector supports 3dready;

2, the appropriate player, in fact, the general computer can also be realized, but the requirements for the graphics card are higher, and the general high-definition player on the market may be realized;

3.3D film source, that is, the video you play is produced alternately according to the 3D effect, that is, the 3D version of a movie, such as the 3D version of Avatar, which is not available in general movies;

4. Match 3D glasses. Generally, the 3D eyes matched with your DLP projector should be liquid crystal 3D liquid crystal (the 3D effect can be achieved by synchronizing the signals of the projector with the liquid crystal lens switches of the left and right eyes). Check the above four conditions, and if they are completely met, you can get a 3D effect on the projector.

Extended data:

Several imaging methods of three-dimensional effect;

Air separation method

Widely used in cinemas. At present, many cinemas have 3D projection halls. During the screening, two projectors are used to play the movies shot by two cameras, and two different groups of images will appear on the screen at the same time, usually with polarized glasses or spectral glasses.

2. Non-flash technology

Non-flash 3D TV is the most natural and stereoscopic way that is closest to our actual feelings. Just like enjoying a vivid 3D image in a cinema, you can watch two images at the same time and stick a special film on the surface of 3D TV and glasses to separate the left image from the right image.

The left and right images are separated by TV and sent to glasses at the same time. Through the filtering of glasses, the separated left and right images are sent to each eye, and the brain synthesizes these two images, making people feel the 3D stereoscopic impression. Features of non-flash 3D: In terms of viewing angle, non-flash 3D is not a problem when viewed within the recommended audio-visual distance.

3. Complementary color technology

It is another 3D stereoscopic imaging technology, and it is also relatively mature now. There are many modes such as red, blue, red and green, but the principle adopted is the same. The color separation method will print images taken from two different perspectives in two different colors in the same picture.

In this way, when playing the video, the naked eye can only see the vague ghost, but the stereoscopic effect can be seen through the corresponding red and blue glasses. Take red and blue glasses as an example. Only red images can be seen under the red lens, and only blue images can be seen under the blue lens. Different images seen by two eyes overlap in the brain, showing a 3D stereoscopic effect.

4. Time-sharing method

Time-division method needs the cooperation of display and 3D switch glasses to achieve 3D stereoscopic effect. The structure of stereo glasses used in time-sharing method is somewhat complicated, and of course the cost is higher. Both lenses are electrically controlled and can be switched according to the output of the display. The switching between light transmission and non-light transmission of the lens makes the human eye only see the corresponding picture (in the light transmission state), and the stereoscopic imaging effect can be achieved when the eyes see different pictures. ?

5. Grating type

In order to receive the stereoscopic TV programs of the 2008 Beijing Olympic Games, our country made a grating stereoscopic TV, but the grating stereoscopic TV also has some shortcomings, that is, the definition is worse than other stereoscopic TVs, and the definition is only slightly higher on very large TVs, but in this way, the price goes up. In order to overcome this shortcoming, we need technical progress.

6. Platts stereo

This is a way to watch stereoscopic images discovered by a veteran after World War I (called full-true stereoscopic images in China). This stereoscopic TV technology is compatible with various formats of original TV equipment. Its principle is to make the camera move to the left or right at a uniform speed when shooting stereoscopic programs, mainly for the effect of moving stereoscopic images. When watching the program, the audience wears a special pair of glasses and moves left or right. One lens of this kind of glasses is transparent and the other is translucent, so the cost is low. If you don't wear glasses, it is no different from watching ordinary TV.

7. Observation mirror:

Previously, it was dedicated to looking at the picture pairs taken by stereo cameras, and the picture pairs were generally presented left and right. Now this kind of viewing mirror can also watch left and right stereoscopic movies.

8. Holography:

This kind cannot be popularized at present. It's stereoscopic from all angles, without stereoscopic glasses. The price is staggering, and it is only displayed in the science and technology museum.