Why is holographic projection far from real commercialization?

Abstract: The first tone and the resurrection of Teresa Teng, constitute the Oriental civilization to explore the two major power of holographic technology.

In May this year, 22 years after Teresa Teng's death, the Japanese TBS television "Golden SMA" program broadcast a special program. According to the introduction, the program group uses 5D holographic projection technology, let Teresa Teng on the stage resurrection, reproduced her in the 1986 in the "Japanese Composition Awards" singing "I Only care about you" Japanese version of the classic picture.

From the video program can be seen, the scene audience in a number of views of the holographic version of Teresa Teng's singing, the effect is extremely realistic, the screen is very delicate, the audience tearful.

This video to the domestic, not only let Teresa Teng's fans friends feeling a lot, but also caused the small vibration of the technology circle. You know, using holographic projection to revive Teresa Teng is a repertoire of Chinese concerts, many stage technology companies in Taiwan in China to this well-known. In Yu Ching Fei, Jay Chou and other people's concert, have arranged holographic version of Teresa Teng on stage to sing.

But the problem is that the previous attempts to restore the details and the effect on the field were not as complete as this year's Japan. People can't help but feel that there is really a gap in technology.

But where is the difference? This high-level resurrection of Teresa Teng, whether it means that holographic projection technology application has been thoroughly mature. With these questions, let's take a little holographic quest.

But don't worry, let's start with the holographic projection, and finally the Japanese black tech ... from science to entertainment: The application History of holographic projection

The so-called "holographic" is a concept that comes entirely from the scientific system, not the physical world.

For traditional image recording, such as photo shooting, it is to record the intensity of the image of the object, get the color, contour and so on the information of the 2D picture. In addition to the light intensity, the object image actually has the phase information. Phase information records the distance between the object and the viewing angle of view, motion trajectory, spatial relationship and other information, if this part of the information can also be retained through technology, then the relative gain of the object "all information"-that is, the so-called "holographic." The static or dynamic image obtained in this way is not 2D but 3D.

The most widespread application of holographic technology is holographic projection. In general, the idea of holographic projection is to record and reproduce three-dimensional information of an object through the principle of interference and diffraction of light. In 1947, British physicist Dennis Gueber invented the holographic projection technique when he studied the enhancement of electron microscope performance, and soon the technology was patented and won the 1971 Nobel Prize in Physics.

At first, holographic projection is applied in electron microscopy, as a scientific research method exists. After the laser was discovered in 1960, the projection technology itself has been developed rapidly. More accurate, more anti-jamming projection appeared, and the holographic projection was re-put on the agenda. But even so, the holographic media problems are still not well solved. Because the laser must produce reflection on some medium to present the information, the holographic projection requires that the medium itself fits into the stereo space. The result is not the medium is too expensive, that is, the viewing effect is not good.

Until the 2001 holographic film came out, mankind finally found a relatively clear effect, at the same time low cost holographic projection media.

Then, holographic projection ushered in the application of the tide. Interestingly, this technique, which emerged as a scientific aid, has since become increasingly distant from science. More are appearing in exhibitions, museums, stage shows, fashion shows, as a means to bring visual shock to the audience.

2010, Japan's most famous virtual Idol debut in the "Big thank You" on the use of holographic projection technology. Although the technology was still weak, the first-tone image was just stuck on the screen but was stereoscopic. But from two times to three times the effect of singing and dancing, or mercilessly hit a few otaku neurons.

Until today, we have been able to see holographic applications in various tourist attractions, museums, ceremonies, concerts, and even the navigation services of airports and premium hotels.

But even with so many applications, the holographic projection that really makes Asian people always be there is only two: one is to make the first sound more real, and the other to revive Teresa Teng. There may be some philosophical questions worth digging into .... several modes of holographic projection application

Press the people's love for idols for the moment, we still want to continue to understand the holographic projection itself.

Holographic projection This thing, after the chip operation and laser imaging technology has matured, the biggest problem facing today is only one: medium.

As said above, the laser will penetrate through the air, so "Iron Man" and other films such as casually cast into the air in the holographic projection is not mature today.

Scientists and technology companies have been painstakingly trying to find the right holographic projection media. With unremitting efforts, today there are three main methods of holographic projection:

1, water mist projection. To some tourist attractions to see the water curtain movie friends should be not unfamiliar with this technology. This is the simplest and lowest cost of a holographic projection mode, the laser on the spray on the water mist to form a reflection, so as to show a three-dimensional holographic image.

But the problem with this technology is very prominent. That is, the particles of water mist are very large, the effect of projection is not good. Therefore, it can only be used as the occasion of tourist scenic spots, and also the technology of manufacturing real illusion effect. In addition, the author believes that the station is too close to be sprayed with water is also the technology can not be widely promoted the key.

2, laser rotation projection. This projection has fewer applications and is only visible in a few museums such as the Science Museum. Its pattern is to use a high-speed rotating mirror to reflect the laser, using the viewer's visual error to create a holographic effect. The problem is that the technology is very cumbersome to promote, and high-speed rotating instruments are first noisy and dangerous. And the media and projected images must be highly coordinated, it is difficult to display a number of different images on one instrument, resulting in a very high cost.

3, holographic film projection. The most used today is the holographic film projection. The principle is to use a film with a high level of transparency to reflect the holographic image. With the surrounding light is darker, the film itself can not see clearly, there is the so-called high-imitation holographic effect.

The first holographic membrane technology is the same as the screen to set the film on the front of the audience. But the problem is that the film is easy to see, and the audience can't leave the front view, or they can wear it right away. This technique was used in the early 2010, but is rarely used at this time.

Now more holographic projection technology, the holographic film is inclined to 45°, through the bottom or the top of the device projection, on one or several holographic film refraction. This way, the viewing effect is more realistic, and you can see the holographic effect in a larger angle.

The very well-known Jay Chou concert with Teresa Teng, is done with this technology. But this technology is not without flaws, such as the projection block must require dark light, once the white light interference will be distorted. And the simulation effect is not realistic enough, there are still color and pixel problems.

Human beings really in the hoping at, in fact, can be completed in the air holographic projection. screen Terminator: A holographic projection of the air brewing in the future

In all kinds of sci-fi movies, there is a thing: a watch or an instrument projecting a large screen or holographic image, and then can operate a variety of cool technology, holographic call.

This is the holographic projection that mankind really pursues. The feature of this technology is that it is not affected by white light, and is ready to be imaged in the air, and can simulate complex stereoscopic models. Once it can come true, humans will probably never need a screen again. Entering the no-screen phase from the pan-screen stage is an epic leap in the history of human technology.

Thankfully, this wonderful desire is not a daydream. Today, the air projection has begun the technology brewing. In general, there are two kinds of solutions: one is to make the refraction of light through the ionization in the air, thus to show the holographic projection effect, and the other is to make holographic image by the laser explosion effect.

It is said that some laboratories in the United States have been able to do without borrowing any medium, purely in the air to achieve holographic projection. In other words, this technology is no longer in the theory, has become a reality, but the current air holographic projection problem is very serious. For example, fewer pixels, very granular, and only to achieve a single color holographic projection. Of course, the more important is the high cost.

Ubiquitous holographic projection, though far away from commercialization. But the pace of development is staggering enough. Perhaps one day, it will be out of the rut of the stage technology, suddenly burst into our lives. Finally, about Japan's "Black Technology"

Can insist on seeing the friends here, congratulations you finally wait for the Japanese black technology part.

The front for the entire holographic projection of science, nothing but to explain the technology in the present and the future, there is a broad commercial space, in other words, is very valuable. But the black technology that revived Teresa Teng in the Japanese program may not be ....

In the program, the 5D holographic projection technology, which is said to have added dynamic and sound outside of 3D, is very much under scrutiny. And when we watch the video, we'll find more unexplained things.

For example, the above section has already been said, holographic projection must be based on the media. If you want the media to be invisible, you must cover it with a dark environment and few holographic projections can be viewed 360°. In the program, Teresa Teng appearance of the environment is the normal light source, and viewers can view from all aspects, are not very consistent with the holographic projection of common sense.

With the appearance of the Teresa Teng image, the final appearance of the whole up and down vibration phenomenon. and the entire image on a very smooth stage without any reflection, are not in line with the laser projection to the scene stage characteristics.

Although the program group did not publish technical details, but from a variety of indications, the program of Teresa Teng images should be added in the post-technology. The virtual implant technology commonly used in TV programs. The image of Teresa Teng in the show is exactly the same as that of the 1986 composer, which is also shown on the side.

Of course, it's not easy to make this later, and it requires very good editing and shooting skills, paired with advanced Mr Technology to complete the docking. But it still leaves a loophole in a lot of detail.

Frankly speaking, the real scene at that time should be the audience to the empty stage performance, and then add to the effect of Teresa Teng real screen 3D cutout.

The whole process of the most black technology place, it should be this tearful, the whole body is the play of the aunt ...