In addition to the Red Envelope Gala and black technology

Inside what, the Spring Festival evening's advertisement has finished, the red envelope snatched up, we come to talk about a little tall. Is there a big one on the Spring Festival gala? Who said no? Although every year is being spit trough, but in addition to magic, there are "black magic". One, Yang and action capture although it looks like a cartoon image, but the Spring Festival evening mascot Yang but there is a serious job, it's work called "Virtual host." The explanation of Flavor point is: On the basis of Virtual studio, the host of the program is replaced by real person as virtual role, which forms the new program manifestation. It can put the virtual host in the virtual scene, form "virtual scene + Virtual person" mode, can also put the virtual host into the real life scene, form "real scene + virtual person" mode. In fact, Yang is not the first virtual host. The world's first virtual host is Anna Nova (Annanova), produced by British PA New media company, and she has gained the world's attention as soon as she appeared. Then she appeared a series of virtual hosts, such as the introduction of the Temple in Japan (Yuki), the United States launched the EU Wei Ann (Vivian), South Korea launched the Lucia (Lusia) and so on. China launched the singer Virtual host Allana (Alana), but the first television virtual host is the 2004 CCTV in the "Light Weekly" in the launch of the "Little Dragon." But at that time the development of science and technology is still difficult to do to people's movements, expressions, such as real-time capture, using a number of computer preset action, so "they" the movement is not natural coherent, only with a pattern of the host style and will never rotate the eyes, and soon the audience left out. There is still a gap between Yang and Yang. This time for Yang to provide technical support is our previously reported Connaught Teng and "perception maneuver" inertial action capture system, through the performance of the real time capture, and then drive the virtual Yang, and the actual studio and the real host of the combination, and finally get the combination of reality and reality of the TV screen, Thus realizes the virtual person and the real host interaction. During the 2014 World Cup, CCTV5 's "I Love the World Cup" and Cntv's "Super World Cup" program used this technology. Seemingly ordinary Yang, also has High-tech, Yang body has a lot of key technologies: 1, high-performance computer: Mainly for graphics rendering and large data calculation, in order to realize the role of the true, smooth and coherent action. 2, 3D virtual Engine: The quality of the three-dimensional scene to a large extent determines the final program quality, the market mainstream 3D virtual engine has unity 3D, Unigine, CryEngine, UDK and radio and television use more extensive vizrt. Each engine has its own advantages in different fields, and choosing a suitable engine can make the scene builders more effective. 3, camera location tracking: "Virtual Scene + real people" and "real scene + virtual person" program form, due to the final will be true, fake camera shot screen as overlapping processing, it involves realCamera and virtual scene in the scene of the camera synchronization problem. Now mainstream image machine tracking technology has four kinds of methods, such as pattern recognition technology, mechanical tracking technology, Mark point tracking technology and trackless positioning and tracking technology. 4, motion capture system: This whole system wants to run perfectly, the role of real-time acquisition equipment is essential. The mainstream motion capture technology in the market is optical motion capture technology and inertial capture technology. The former because of the harsh requirements of the site light and complex operation experience, at this stage there is no good real-time motion capture solution, it is difficult to achieve in large-scale stage and studio applications. The latter based on the principle of the sensor, the use of wireless data transmission, without fear of occlusion and distance constraints, is a better stage and studio real-time dynamic capture solution. In fact, I would like to tell the @ Spring Festival Gala and @ccav, has gathered five "Li Yang", prepared to gather enough seven "Li Yang" to the listing of Krypton people said: "This goat sheep is not called" plum "we are very unhappy. Second, Li Yuchun and Li Yuxia, Li Yuqiu, Yuchun winter my Male God finally came out singing, but also so polite, brought his family three brother when a gift: Li Yuxia, Li Yuqiu, Li Yudong. It is said that this is the most fashionable creative class show, the Spring Festival evening crew using "Holographic projection technology", the production of three-dimensional stage simulation, the great workload, is the year of the Year of the year the most expensive program. "Asia's first Men's Day Regiment," The Mystery of the host has been part of the announcement, here is simple. In fact, the moderator called the holographic technology is not accurate, called three-dimensional projection technology more appropriate. Three-dimensional projection technology is projected on irregular objects. And the reason that this is not holographic, because this program can only be seen in a special angle to see the whole, turn the angle is not complete. True holography requires a 360 degree perspective. Some time ago, Jay Chou and "Teresa Teng" chorus "Red House" is the use of this technology. Before, Wang Zhixi ego in know about the relevant knowledge, we can refer to: holographic technology is actually the realization of three-dimensional image recording and reproduction. The first step is to use the principle of interference to record the object light wave information, the problem of recording was conquered as early as 1947. The general three-dimensional graph only realizes the three-dimensional illusion of the human eye through the composition and the change of color and light in two-dimensional plane. While the holographic image contains information about the size, shape, brightness and contrast of the object being recorded, the observer can observe the morphological changes of the image at different angles from various angles, as if there is a real object there. Of course, today's technology is no longer limited to recording real images, but can also produce completely virtual three-bit digital images. The second step of holographic technology: reproduction, that is, using the principle of diffraction to reproduce the object light wave information. It took 2001 years to make a breakthrough. Mainly thanks to the birth of holographic membrane technology, so that the reappearance of three-dimensional image is possible. Rely on this thin transparent film, whether it is on the T-platform streamer overflow, or on the stage illusory image, can be achieved. With the development of holographic film technology, now some holographic film inside there are XuHow thin the line wire. With these wires, people can interact with holographic images by touching them with their fingers. After introducing the outline of holographic technology, and then to see three-dimensional holographic projection technology, popular is "phantom imaging", similar to the mirage of nature, is a need to wear 3D glasses of the naked 3D technology, The principle is that through different number of projectors to the real image or carefully crafted and have three-dimensional effect of the digital image of a symmetrical projection on the imaging film. Through the diffraction and refraction of light, the three-dimensional image is reproduced, and the three-dimensional picture is suspended in the real mid-air image. Subdivision, three-dimensional holographic projection has several major categories: 360-degree holographic projection, 270-degree holographic projection, 180-degree holographic projection. Implementation methods and application areas are slightly different, do not do too much to repeat. These technologies are widely used in exhibition halls, museums, science and technology pavilions, archives, entertainment halls, exhibitions, fairs and libraries. 3D anime also in this new technological innovation to change people on the traditional stage of the sound photoelectric technology aesthetic attitude. What is more representative is the vocaloid of the first series. Miku is also the world's first virtual idol to use holographic projection technology to hold concerts. After some preliminary exploration and trial, the 2010 of the great appreciation of the festival has made a very big success, the production level is better than before, thank you to use the German sax 3D company 3D holographic transparent screen playback 3D image implementation, In fact, this concert is exactly 2.5D, simple explanation is to play the screen 3D screen, just like watching movies, but this screen can adjust the transparency, such as the full transparency of the stage on the left Miku imaging, the original is to adjust the screen of the local particle concentration shows an opaque effect and imaging. Commercially used holographic technology can be broadly divided into two categories: one is the back projection mode, the projector directly projected the image onto the holographic film. The other is the use of reflection to reflect the projection or led image to the 45-degree-placed holographic film. Choose which projection mode, the most important thing is to consider the site environment. If we want the object to look real, the surrounding lights, the distance between the stage and the audience, and the size of the object are all things to consider. [36 Original Krypton article, author: Small Stone]