VR = virtual reality = virtual reality. VR is a pure virtual scene, that is, the scenes and characters you see are illusions, bringing people's vision and consciousness into a virtual world. In essence, virtual reality is a computer simulation system that can create and experience virtual worlds. For example, The Matrix Inception is the representative work of VR movies.

AR = augmented reality = augmented reality. AR is the fusion of the real world and digital information, which brings virtual information into the real world. The scenes and characters people see are partly true and partly false, which can distinguish virtual objects from physical objects.

The goal of AR augmented reality is to put the virtual world in the real world and interact with it on the screen, usually through mobile phones or PADs.

MR = mixed reality = mixed reality. It is a new visual environment produced by the fusion of reality and virtual world, and it is difficult to distinguish virtual physics from real objects. In the new visual environment, physical and digital objects exist and interact in real time.

I'll call this picture "reality-virtual continuum" for the time being. The interval from left to infinity represents the real environment, followed by augmented reality (AR) and augmented virtual (AV) on the right, and the virtual environment on the right until infinity, while mixed reality includes augmented reality and augmented virtual.

Then the definition of MR is: mixing the real world and the virtual world to produce a new visual environment, which contains both physical entities and virtual information, and must be "real-time". The two representative devices of MR are Hololens and Magic Leap.

Under the above definition, AR is often considered as one of the forms of MR. Therefore, in today's industry, for convenience of description or other reasons, AR is also considered as a synonym for Mr, and AR is used instead of Mr. ..

Moreover, from the concept advocated by the industry, there is no obvious dividing line between AR and MR, and it is likely that AR and MR will no longer be distinguished in the future. MR is more of a gimmick played by Hololens and Magic Leap. The so-called "AR devices" and "MR devices" are slightly different in application technology and display effect. Let's talk about the differences between these two types of devices (AR devices represented by Google Glass and MR devices represented by Hololens and Magic Leap).

For the sake of understanding, let's explain it in a popular way. There are two main differences.

First, whether the relative position of the virtual object moves with the movement of the device. If there is, it is AR equipment; If not, it is MR equipment.

For example, put on Google Glass, and it will project a "weather panel" on your left front. No matter how you walk around the room or turn your head, the weather panel is always in front of you on the left, and its relative position with you (or Google Glass) remains unchanged. Wherever you go, take it with you.

And Hololens? It will also project a weather panel on the wall of the house, but the difference is that no matter how you walk or turn your head in the house, the weather panel will always be on that wall and will not move because of your movement (this mainly involves spatial awareness positioning technology, SLAM, real-time positioning and map construction, which is the most important one, and its function is to let the equipment obtain the surrounding environmental information in real time. In order to accurately put the virtual object in the correct position, no matter how the user's position changes, the position of the virtual object can be fixed in the same position in the room).

Secondly, in an ideal state (digital light field has no information loss), whether virtual objects can be distinguished from real objects.

Virtual objects created by AR devices can be clearly seen as virtual, such as virtual objects typed by FaceU on the user's face and virtual information projected by Google Glass moving with you. And Magic Leap, there is almost no difference between virtual objects and real objects that users see (this mainly involves digital light field technology, digital light field. AR equipment uses two-dimensional display screen to present virtual information, so it is easy to distinguish between true and false; MR equipment directly projects the whole 4-dimensional light field onto the retina, so there is no mathematical difference between the objects seen by users from Magic Leap and the real objects, and there is no information loss).

Of course, the boundary between "AR equipment" and "MR equipment" is not absolute (even this boundary is set by enterprise YY). Here are two categories, mainly to let everyone know that the technology they apply and the effect they achieve are different. In the future, AR devices will also use technologies such as SLAM, digital light field and retinal projection (such as Google's Project Tango), and then AR will evolve into MR.

Movie reality = image reality. Virtual scenes are as realistic as movie special effects, and achieve the purpose of "deceiving" the brain. CR, a "black technology", is said to be more advanced.

But then it seems that their spokesman also classified himself as Mr.

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