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The Difference between VR and AR: Revealing Two Black Technologies that Change the World

VR(Virtual Reality)

This is the most widely known concept, and it is also the first industry that will take off in the market in 20 16. The most famous companies in the industry are Oculus VR, Sony and HTC, all of which will sell their own VR devices on 20 16, including head-mounted displays and interactive devices dedicated to VR.

At present, the most important sign of VR is that users need to wear "head mounted display", referred to as "HMD". The displayed content can come from a personal computer, a game machine or a mobile phone.

Compared with all previous display devices (such as TV, monitor and iMax screen), the biggest breakthrough of VR is "immersion", so the current VR technology is also called: immersive virtual reality technology. After wearing the head display, the user is completely "wrapped" in the virtual world. When the user turns his head (or even walks around), the virtual world he sees will completely change with the position and angle of his eyes, just like in the real world.

Another word most frequently mentioned in VR is "telepresence". The power of VR is that it can "cheat" the user's brain and make people believe that they are indeed in a virtual world to some extent. Therefore, the strength of telepresence is the most important criterion to test whether VR equipment and content are excellent.

AR(Augmented Reality)

AR is usually realized by head-mounted devices, the most famous of which is Google Glass, but some basic AR functions can also be realized by mobile terminals (such as Google's Project Tango) or even ordinary mobile phones.

The key word in AR is "utility". AR technology allows users to receive digital information and data related to the real world while observing the real world, thus helping users' work and behavior. Typical application scenario: users wear AR glasses. When he sees a restaurant in the real world, his glasses will immediately show the restaurant's features, prices and other information.

Although AR doesn't sound as novel as VR, due to its broad application prospects in government, enterprises and consumer markets, most market institutions believe that the market of AR will be much larger than VR.

Mixed reality, sir. Mixed reality

Mr. Wang is the latest to appear, but it also sounds the highest concept. It is actually a combination of VR and AR.

Using MR technology, users can see the real world (the characteristics of AR) and virtual objects (the characteristics of VR). MR places virtual objects in the real world and allows users to interact with them.

The most typical MR application scenario is displayed by Microsoft at the HoloLense conference. Users can fight the invading alien creatures in their living room.

Compared with VR and AR, MR technology has the lowest maturity. The most familiar MR technology should be Microsoft's HoloLense and Google's Magic Leap. However, the related videos released by these two companies obviously have traces of "artificial processing". Moreover, no company has dared to announce the time of product launch.

Real image

CR is a concept that Magic Leap once advocated, saying that it is cinematic reality, which means that virtual scenes are as realistic as movie special effects. But then it seems that their spokesmen also classified themselves as Mr., so let's classify ourselves as Mr..

It is very important that the magic jump is not seen by the naked eye. Don't be misled by the whale video that was once a hit. Magic Leap also needs to wear a monitor, and whale video should be a special effect done later.

Humans have been thinking about seeing a virtual object out of thin air for hundreds of years, and there are many holographic images in the air in various science fiction movies. In fact, it is physically difficult to think about the essence: there is no medium in pure air that can reflect or refract light. The most important thing to show is the media.

After talking about the above concepts of AR, VR, MR and CR, let's talk about the differences between them.

The difference between VR (virtual reality) and VR (augmented reality)

Simply put, virtual reality (VR), the scenes and characters you see are fake, that is, substituting your consciousness into a virtual world. Augmented Reality (AR) is to bring virtual information into the real world by seeing scenes and people that are half true and half false.

Interactive distinction

VR devices: Because VR is a pure virtual scene, VR devices are more commonly used for the interaction between users and virtual scenes, such as position tracker, data glove (such as 5DT), motion capture system and data helmet.

AR equipment: Because AR is a combination of real scene and virtual scene, it basically needs a camera. On the basis of the pictures taken by the camera, virtual pictures can be displayed and interacted, such as Google Glass (in fact, strictly speaking, only products with cameras, such as IPAD and mobile phone, can be used for AR, as long as AR software is installed. )

technological disparity

Similar to game making, creating a virtual scene for people to experience, its core is the display of various graphics technologies. The most contact with us is the application in the game, which can be said to be an upgraded version of the traditional game entertainment equipment, mainly focusing on whether the virtual scene has a good experience. They don't care if it's related to the real scene. VR devices are often immersive, and the typical device is the oculus rift.

AR uses many computer vision technologies. AR equipment emphasizes the function of restoring human vision, such as automatically identifying and tracking objects, rather than being pointed out manually by me; Autonomous tracking and 3D modeling of the surrounding real scene, instead of me opening Maya to make a very similar scene. Typical AR devices are ordinary mobile phones and upgraded versions such as Google Project Tango.

The difference between AR (augmented reality) and MR (mixed reality) and CR (image reality)

Seeing this, I believe that the concepts of VR and AR need no further explanation. The concepts and differences between AR and MR may be something that many people need to understand deeply. It is said that when someone asked a Microsoft spokesperson "How HoloLense applied AR technology", Microsoft buddies immediately retorted loudly: "We didn't use AR! Yes, sir, sir, sir ! ! "

In fact, when MR is introduced above, it is said that MR is a combination of VR and AR, and CR is a branch of Mr and also belongs to Mr.

All right, that's all. If you still don't understand, go back and have a look.

Finally, I want to say that having said so much, it doesn't matter what R these technologies are called, nor do these concepts. Many times, in order to meet the market demand, some enterprises compete to become the makers of industry standards, which also makes them look better. There is a saying that "first-class enterprises make standards, second-rate enterprises make brands, and third-rate enterprises make products". It is estimated that the enterprises that invented these concepts are also striving to be "first-class" enterprises.

Finally, China Augmented Reality Industry Alliance, referred to as AR Alliance or ARA, provides a simplified version to give you a more general understanding:

virtual world

AR= real world+digital information

MR=VR+AR= real world+virtual world+digital information.

CR=MR