What is a digital movie

Digital movies are produced, transmitted and projected in form (i.e., the "O" and "1" modes). It is produced in three ways:

One is computer-generated;

Two is shot with high-definition video cameras;

Three is the scanning of films shot on film into digital format.

Digital film not only avoids film aging and fading, but also ensures that the film will always look as good as new, and that there will be no shaking or flickering in the picture

so that the viewer can no longer see any scratches or wear and tear on the picture. In addition, the distribution of digital film programs no longer requires the development of large amounts of film, which not only

saves distribution costs but also contributes to environmental protection. By transmitting programs digitally, there is no quality loss of the entire movie during transmission.

That is to say, once the digital movie signal is sent out, no matter how many digital theaters, and no matter where it is located on the earth, it can make the audience in different

areas at the same time enjoy the same high-quality digital program.

At the same time, digital projection equipment can also provide value-added services for the theater, such as real-time broadcast of major sports games, cultural performances, distance learning

etc. It has changed the single mode of film projection in theaters to a real-time, multi-functional, multi-channel, multi-faceted business model.

The huge potential of digital cinema technology has become the trend and direction of development in today's world.

People look at the same object with the left and right eyes, the two eyes see different angles, the formation of the image on the retina is not exactly the same, the two like after the brain synthesis can distinguish between the front and back of the object, near and far, thus producing stereoscopic vision. The principle of stereoscopic movies is to use two cameras to imitate the perspective of the human eye at the same time shooting, in the projection of two projectors synchronized to the same screen for the left and right eyes to watch, thus creating a three-dimensional effect.

To shoot a stereoscopic movie, the two cameras are mounted on an angle-adjustable special gimbal and shoot at a specific angle. The synchronization of the two cameras is very important, because even a few tenths of a second of error will make the left and right eyes feel uncoordinated; so the film must be shot on the board, so that in the editing can find the synchronization point.

When a stereoscopic movie is shown, two projectors are placed in a certain way, and the two images are projected point-to-point in perfect unison and synchronization on the same screen. In front of the lens of each projector must be added a polarizer, a horizontal polarizer, a longitudinal polarizer (or diagonal cross), so that the screen will be different polarized light reflected to the audience's eyes. Viewers should also wear polarized glasses when watching movies, the polarization direction of the left and right lenses must be matched with the projector, so that the left and right eyes can each filter out the images that do not match the direction of polarization, and only see the corresponding polarized light image, that is, the left eye can only see the left machine projected images, the right eye can only see the right machine projected images. After these images are synthesized by the brain, stereoscopic vision is produced.