Vol 2 Chapter 420: VR motion capture tracking technology

Looking at the audience, Wu Hao said with a smile: "In fact, I still have a lot to say about this pair of gloves. It feels like we suddenly have a baby or fun toy, especially for friends. Sharing is to share this joy, isn't it a show off? "

Hehehe, everyone in the audience laughed.

Wu Hao went on to say: "But because of time, I can only introduce here. This pair of smart sensor gloves also has a lot of fun experience functions. I can only rely on everyone to understand and get started. Trust me, You will like it. "

Wu Hao smiled at the audience, then changed a PPT and said, "Generally speaking, as an ordinary VR user, I have such a high-performance VR glasses (including the host) and such a smart smart sensor gloves. It is enough to cope with more than 60% of the use scenarios in the entire virtual world. It can be said that daily operations are basically no problem.

But for many who pursue the ultimate, this is not enough. We don't just move our hands, we have our feet and our bodies. These may not be used in general operation, but they can be used in some special occasions.

For running, for example, you need a special device to record accurate data of your body while running.

For example, your left and right feet lift off the ground, the distance between steps, and the running posture, etc., all need special sensors to record.

Another example is if you want to play dancing games in the virtual world, then you need a VR motion capture tracker. Use it to capture your body movements and transfer these motion data to the virtual characters in the VR virtual scene in real time.

In simple terms, it is such a motion capture device that transfers your real-life motions to the virtual world simultaneously.

I believe that audiences who have watched "Player" also dream of having such a set of clothes as the main characters in the movie. "

"Yes!" Many fans in the audience responded excitedly.

After receiving a response, Wu Hao laughed: "In fact, if it is only to transmit our body movements, this technology has already been available and is very mature.

At present, there are many types of human motion capture technologies on the market, which are generally divided into three types.

The first category is the use of optical positioning technology to capture our human motion, which is also the earliest and most widely used motion capture technology.

The principle of this technology is actually laser, infrared, or visible light to locate many three-dimensional coordinates on the sports stage, so as to capture human motion.

At present, it has been widely used in the production of film and television animation games for bundling virtual characters in 3D software. Many of the film and television works and animations and even the action expressions of the characters in the game are made using this set of technology.

The second category is light and shadow image recognition and capture technology. Simply put, it uses a 3D camera to record human movements, and then uses image recognition technology to identify the movements of people in the pictures recorded by the 3D camera.

This technology is also very mature. For example, when we first participated in the Hangzhou exhibition, we performed this show with our classmates from Shanghai East University of Science and Technology.

Of course, this technology also has certain limitations, that is, it is not precise enough. It only captures human motion images. If our limb images are superimposed, it will be more difficult to capture. Therefore, we generally use multiple 3D cameras arranged to capture in multiple orientations to improve the accuracy of its capture recognition calculations.

The third category is the technology used in the smart sensor gloves I showed before. Utilizing a large number of sensors throughout the human body to record the movements of various parts of the body, from the precise capture of the human body's movement posture. "

Having said so much in one breath, Wu Hao could not help but swallowed. Although I don't know if the audience and the people watching the live broadcast can understand it, some professional things should still be explained clearly, otherwise it is easy to encounter the bar to find fault and refute.

He took a sigh of relief, then went on to say, "These three technologies have their own advantages and disadvantages. Although the first technology is widely used, this set of optical capture equipment is very expensive. Our average individual users are very Unbearable.

Initially, this set of equipment cost about one million yuan. In recent years, with the continuous introduction of domestically produced similar equipment, the price of such equipment has dropped a lot, but it is also about 100,000.

Moreover, the installation and maintenance of this kind of equipment is relatively troublesome and needs to be completed by professionals, so it is difficult to popularize it to our mass users.

Of course, there are some excellent products of this kind in the market, and you can choose according to your actual situation, as long as these devices can support our operating system application protocol. "

Then, Wu Hao changed a PPT and then continued: "The second type is the light and shadow image recognition and capture technology. Its main equipment is this 3D body-sensing camera. The price of this 3D body-sensing camera is relatively cheap. Very suitable for some novices to choose to use.

We will also launch such a 3D body-sensing camera, which can not only support our body motion capture, but also capture our gestures. Its recognition rate can reach more than 80%, and it can be used in general application environments.

In other words, with this 3D body-sensing camera, you don't need to buy any smart sensor gloves and this kind of complicated motion capture equipment, so as to realize the basic control and operation of the virtual scene.

As an experiencer and developer, I suggest that if you want to buy, you can buy two at once. Then place them separately at an angle greater than 90 degrees with your body, so that it will have a higher recognition rate for your limb movements.

Of course, it can't perform fine operations, such as the subtle movements of the body, and some of the fine movements of the fingers of our hands, etc., it can not accurately identify. This is not that our technology is not working, but that it is a congenital defect that originally existed, and there is no way to solve it. "

He stopped here ~ www.readwn.com ~, then took the water on the side and took a sip, moistened his angry voice, and then stood back in the middle.

With so many people at the scene, the weather was really hot, especially the high-power spotlights in front of the stage. It was uncomfortable, just like walking in a hot desert.

Seeing this, the crowd at the scene also gave him encouragement and applause. The content at this press conference today is all dry goods, so this requires him to keep talking. This is a test for Wu Hao, and everyone in the audience naturally sees it.

Thank you, Wu Hao said with a smile: "As for the third technology that uses sensors to capture the posture of the human body, this is also the technology product we recommend to everyone today. Its principle is the same as the technology of the smart sensor gloves , But we applied it to the capture of whole body movements.

This is not a simple copy. In fact, there are a lot of things to consider, such as far more sensors than smart induction gloves, and the technical sequence of the arrangement and combination of these sensors and the correction of the human body. "

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