According to the plot of the film, the 4D film will carefully design the effects of smoke, rain, photoelectricity, bubbles, smells, scenery, character performances and so on to form a unique performance form, while the IMAX3D film will adopt the best 3D stereoscopic technology recognized by the end of 20 13, which will make the film present a more stereoscopic effect.
Second,
4D movies are developed from traditional 3D movies. Compared with other types of cinemas, 4D cinema has the characteristics and advantages of outstanding theme, high technology content, realistic effect and strong screen impact. IMAX3D movies adopt the best 3D stereoscopic technology recognized at the end of 20 13, which makes the movies more stereoscopic.
Third,
IMAX3D is the projection technology of IMAX stereoscopic movies. IMAX3D uses two sets of IMAX-specific 15/70 films, one for each eye, and provides two independent images through polarized filter glasses or infrared synchronization system with electronic glasses. Combined with IMAX giant screen, IMAX3D can produce realistic full-field stereoscopic effect.
And 4D) is a movie projection system, which can project movies with larger and higher resolution than traditional movies. The whole system includes film copying, projector, sound system, screen and so on. IMAX specification shooting.
Extended data:
I. IMAX3D
1, negative
In order to greatly increase the resolution of the image, IMAX uses a special 70 mm negative. The image size of traditional 70mm film is 48.5mm× 22. 1mm (Todd-AO), and the image size of IMAX film is 69.6 mm× 48.5 mm. ..
In order to expose at the speed of 24 frames per second of standard film, the speed of IMAX film is three times that of ordinary film.
There are some technical difficulties in showing a blockbuster-the traditional 70 mm film is not stable enough after being enlarged by 586 times. So IMAX needs some new technologies. William Shaw of IMAX Company adopted an Australian patented technology called "rolling cycle" for film screening.
2. Folding sound system
In order to make full use of the movie area without sound track, IMAX movies use six-channel 35 mm tape to play the sound synchronized with the picture. In the early1990s, the digitized six-channel sound source separated from the picture was changed into a more accurate pulse generator as the synchronous signal source of the traditional SMPTE time code.
3. Folding projector
The 15kW xenon short arc lamp projector used in IMAX projector weighs 1.8t, is more than 178cm high and is 195cm long. IMAX released its 15 grid.
There are four projector types in the 70mm film format: GT (Grand Theatre), GT3D (Double Rotor), SR (Small Rotor) and MPX, which are specially designed for refitting theaters.
Step 4 fold the cinema
The structure of IMAX is also very different from that of ordinary cinemas. Due to the improvement of picture resolution, the audience can be closer to the screen, and generally all seats are within the height of one screen (the traditional cinema seat span can reach 8~ 12 screens).
Second, 4d: real-d4d
1, TV introduction
4D TV is an upgraded version of 3D TV. On the basis of the original 3D stereoscopic display, it has been upgraded from a single stereoscopic display to three stereoscopic display modes of space, time and space-time.
In this way, the whole family can sit around a TV and watch their favorite programs in full screen without affecting each other, so that one TV can become multiple TVs.
2. Brief introduction of glasses
The glasses on the 4D TV are the same as shutter 3D glasses, but they are opened differently when watching 2D and 3D programs, so you can watch two or more 3D stereoscopic programs on the 4D TV at the same time.
3. System software
After all the above elements are satisfied, how can we make them work organically and orderly? This requires a computer control system specially designed for different film contents to play its role. The core of control system is control software.
According to the content of the film, the program engineer sets commands at accurate time points to control the switches of the projection system, special-effect seats, special-effect equipment and sound system. , so that the entire 4D film system constitutes an organic whole, providing the audience with an all-round sensory experience.
4. Sound system
The balanced sound source speaker technology of 4D cinema uses five independent audio channels to play the sound, so that the audience can hear the sound source of each sound.
Every 4D cinema has undergone acoustic processing, which can accurately and truly present the sound image with the maximum dynamic range.
Therefore, the sound played in each 4D screening hall is extremely clear, and the audience can not only hear the sound of a needle landing, but also hear the location of the needle landing. The audio track of each 4D movie has been specially made to adapt to the unique sound system of 4D.
5. Film market
The freshness brought by 4D movies is the primary factor to attract audiences. Therefore, in terms of geographical distribution, we should try to avoid market saturation. If the market has become saturated, we can adopt the way of mobile operation and grasp the right time, location and people, which will have better results.
References:
4D- Baidu Encyclopedia
IMAX-3D- Baidu Encyclopedia