With the development of virtual reality technology, there are now more and more scenes we can see the emergence of virtual reality technology. The television industry is one of last year's World Cup, this year's Spring Festival evening we can see the emergence of Virtual Studio broadcasts.
This parade, we also can see the Beijing TV station also features Virtual Studio technology: viewers can see that commentary on the host side, virtual weapons and equipment would appear at his side, vividly showing the audience the equipment magnificent, rather dry text or description.
Virtual Studio technology can actually say that a subset of augmented reality technology. It also involves how augmented reality virtual elements and real scene superimposed on the issue. However, augmented reality is going to make the final picture in the eyes of the user, the Virtual Studio is the picture on the TV screen.
Therefore, its technology focus and augmented reality is the same:
First is the ability to precisely locate a real scene;
Second is the ability to render out a virtual element;
Third, how virtual elements overlay in real time on real-world scenarios, and then return to the video stream. YSL iPhone 5 Case
Here, the most difficult is how to overlay virtual and real elements.
Cameras, once in motion, real and virtual elements have to be synchronized with this movement. TV frame rate of the video is 50FPS, that is, the engine needs to render out a frame every 20ms, which is a very high demand. Therefore, the system includes cameras will be present in working condition, including the location and angle of view, and so on, that corresponds to the virtual engine can render the picture.
(Virtual Studio)
So, here you can get a Virtual Studio system processes:
First step is to collect working information of the camera, the most important thing is the camera's location and its relationship with the reality; and then transmit the information to the workstation.
Second step is get the foreground objects and the distance between the camera and the relative position, so as to calculate the size of the virtual element, position, and render the resulting virtual elements.
If the element involves a fictional (such as the World Cup program in the virtual players, or spring night, Yang), often involving motion capture systems: movements in real time with real people-driven virtual characters, and then presented.
The third step, live images of Virtual Studio system will host integration with computer-generated virtual elements together constitute a scenario that does not exist in reality, and broadcast to the audience in real time.
In General, there will be common in the movie trailer of our green screen to cover everything we don't want it to appear in the final screen of the scene elements, in the professional, this is called "chroma key". Dig out and then the computer will set the appropriate colors, set up the virtual scene, and finally we will see in the parade live, a magnificent missile launcher appears next to the host.
Can be said to be augmented reality Virtual Studio technology in commercial applications, has matured and has been able to live on commercial use.
But augmented reality itself, there is still a long way to go--because consumers sense the augmented reality glasses to resolve without difficulty by many virtual Studio:
First, the Virtual Studio is in a control scenario.
Specialized equipment capture camera location and scene location, and augmented reality glasses you need application on a large scale, which requires very hot areas of technology in computer vision SLAM (Simultaneously Localization And Mapping, real-time measurement and modeling scenes) to help the augmented reality glasses "see" and "understand" the surrounding environment. Google's Project Tango is development projects in order to solve this problem.
(Google's Project Tango project)
Second, mobile VR glasses may have far less computing power to commercial level in the Virtual Studio technology workstation.
So its ability to render virtual elements under high frame rate is far less than the Virtual Studio, virtual screen will certainly be augmented reality glasses like Virtual Studio, rich and lifelike.
The 3rd is augmented reality glasses in picture is ultimately projected onto the user's retina.
So I want to meet the characteristics of the human visual system, display device to have the ability to be greatly different from the screen: make people feel that the fusion of virtual and real, need to match the focus of attention of the display's ability to display virtual elements, only Microsoft HoloLens convincing example of this ability, and they are using holographic display screen.
Interesting is that, at this year's E3, Microsoft's press conference, Microsoft uses virtual Studio technology HoloLens can eventually achieve – may this event is also a Virtual Studio to achieve the best results. Microsoft also uses a sophisticated camera tracking techniques, convince the audience showed HoloLens augmented reality.
(Microsoft HoloLens)
Therefore, the parade would be like under the future of augmented reality? In accordance with established practice, the next parade will be held in 2019 in China. I think that augmented reality will take part in the military parade--spectators in real time using your own augmented reality glasses, or see a magnificent force, along with their weapons and equipment introduction, details enlarged, even dismantling ... ... We watched a military parade will not be limited to site or TV that the only two positions, and may also be able to use immersive virtual reality way. Technology evolves we'll see.
2069 votes
HoloLens holographic glasses
Based on Microsoft's years of accumulated technology and development, the HoloLens did for real-world scenarios and natural gesture tracking, understanding and modeling, and real-time rendering of virtual worlds and overlay (at least). Once this step is achieved, is to subvert his Phone's core competencies. YSL iPhone 5 Case
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