Military Technology

Looking at everyone in the audience, Wu Hao said with a smile: "Actually, I still have a lot to say about these gloves. This feeling is like we suddenly have a treasure or a fun toy, especially for friends and me." Sharing, that is, sharing this kind of happiness, is it not a kind of showing off."

Hehehe, everyone in the audience chuckled lightly upon hearing this.

Wu Hao went on to say: "However, due to time constraints, I can only introduce this pair of smart sensor gloves. There are many fun and experiential functions, and we can only rely on everyone to come down to understand and experience it yourself. Believe me, You're going to love it."

Wu Hao smiled at the audience, and 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 pair of smart smart sensor gloves. It is enough to cope with more than 60% of the usage scenarios in the entire virtual world, and it can be said that there is basically no problem in daily operation.

But in the eyes of many people who pursue the ultimate, this is not enough. We humans move not only our hands, but also our feet and the whole body. These may not be used in general operations, but they can be used in some special occasions.

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

For example, the distance between your left and right feet from the ground, the distance between steps, and running posture, etc., all of which require special sensors to record.

For another example, 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 dynamics, and transmit these motion data to the virtual characters in the VR virtual scene in real time.

Simply put, it is such a motion capture device that transmits your real-life movements synchronously to the virtual world.

I believe that audiences who have watched "The Player" also dream of having such a set of clothes worn by the protagonists in the movie. "

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

After getting a response, Wu Hao said with a smile: "In fact, if it is just to transmit our body movements, this technology has already existed 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 to use optical positioning technology to capture our human body movements, which is also the earliest and most widely used motion capture technology.

The principle of this technology is actually a laser,

Infrared rays or visible light can locate many three-dimensional coordinates on the sports stage, so as to realize the capture of human body movements.

At present, it has been widely used in the production of film and television animation games, and is used to bundle virtual characters in 3D software. Many of the film and television works and animations we see, as well as the action expressions of the characters in the game, are produced using this set of technologies.

The second category is light and shadow image recognition and capture technology. To put it simply, it is to use a 3D camera to record human body movements, and then use image recognition technology to recognize the movements and postures of the characters in the picture recorded by the 3D camera.

This technology is also very mature. For example, we used this motion image capture technology in the performance we showed jointly with the students from Hudong University of Technology when we first participated in the Hangzhou exhibition.

Of course, this technology also has certain limitations, that is, it is not precise enough. What it captures is only the moving image of the human body. If our body images overlap, it will be more difficult to capture. Therefore, we generally use multiple 3D cameras arranged in multiple directions to capture together to improve the accuracy of its capture and recognition calculations.

And the third category is the technology used in the smart sensor gloves I showed before. Use many sensors all over the human body to record the movements of various parts of the body, so as to realize the precise capture of human body movement posture. "

After talking so much in one breath, Wu Hao swallowed involuntarily. Although I don't know if the audience and the people who are watching the live broadcast can understand it, some professional things still need to be explained clearly, otherwise it is easy to encounter arrogance to find fault and refute.

He breathed a sigh of relief, and then he continued to talk: "These three technologies have their own advantages and disadvantages. Although the first technology is widely used, the price of this set of optical capture equipment is very expensive. It is very expensive for us ordinary individual users to use it. unbearable.

Initially, this set of equipment cost about one million yuan. In recent years, with the continuous introduction of similar domestic equipment, the price of this type of equipment has dropped a lot, but it is still around hundreds of thousands.

Moreover, the installation and maintenance of this kind of equipment are cumbersome and require professionals to complete, so it is difficult to popularize to our mass users.

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

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

We will also launch such a 3D somatosensory camera, which can not only support our body motion capture, but also capture our gestures. Its recognition rate can reach more than 80%, which is completely sufficient in general application environments.

That is to say, with this 3D somatosensory camera, you don't need to buy any smart sensor gloves or such 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 a time. Then place them at positions with an angle greater than 90 degrees with your body, so that it will have a higher recognition rate for your body movements.

Of course, it cannot do fine operations, such as subtle body movements, and some subtle movements of our hands and fingers, etc., and it cannot accurately identify them. This is not because our technology is not good, but a kind of inherent defect in this technology, and there is no way to solve it. "

He stopped here, took a sip of the water on the side, and moistened his burning throat before standing in the middle again.

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

Seeing this, everyone present also gave him encouraging applause. The content of today's press conference is all dry stuff, so he needs to keep talking. This is a test for Wu Hao, and everyone in the audience naturally sees it.

Thank you, Wu Hao squeezed out a smile and said: "As for the third technology that uses sensors to capture human gestures and movements, this is also the technology product we are promoting to you today. Its principle is the same as the technology of the smart sensor gloves we introduced earlier. , but we applied it to the capture of the whole body motion.

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

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