Chapter 420: VR Motion Capture Tracking Technology
Looking at the crowd in the audience, Wu Hao said with a smile: "Actually, I still have a lot to say about this pair of gloves, this feeling is like we suddenly have a baby or a fun toy to share with friends, that is, to share this happiness, it is not a kind of show-off." ”
Hehehehe, everyone in the audience chuckled when they heard this.
Wu Hao continued: "But because of the time, I can only introduce it here, and this pair of smart induction gloves has a lot of interesting experience functions, so I can only rely on everyone to come down and understand and experience it in person." Trust me, you're going to love it. ”
Wu Hao smiled at everyone in the audience, and then changed a PPT and said: "Generally speaking, as an ordinary VR user, have such a high-performance VR glasses (including a host) and such a pair of dexterous 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.
However, in the eyes of many people who pursue the ultimate, this is not enough. We move not only our hands, but also our feet and our entire bodies. These may not be used in general operations, but they can be used in some special occasions.
For example, when 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 to the ground, the distance between steps, and the running posture, etc., all need to be recorded by special sensors.
If you want to play a dance game in a virtual world, then you need a VR motion capture tracker. Use it to capture your body dynamics and transmit this movement data to the virtual character in the VR virtual scene in real time.
To put it simply, it's a motion capture device that synchronizes your real-life movements into the virtual world.
I believe that the audience who has watched "The Player" also dreams of having such a set of clothes worn by the main characters in the movie. ”
"Yes!" Many fans in the audience responded excitedly.
After getting a response, Wu Hao smiled: "In fact, if it was just to transmit our body movements, this technology would have been available for a long time, and it was very mature.
There are many types of human motion capture technologies on the market, and they are generally divided into three types.
The first type is the use of 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 that laser, infrared, or visible light can locate many three-dimensional coordinates on the sports stage, so as to capture human 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 have seen, as well as the facial expressions of characters in games, are made using this set of techniques.
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 movements, and then use image recognition technology to identify the movements and postures of people in the picture recorded by the 3D camera.
This technology is also very mature, such as the one we used in the performance we jointly presented with the students of Hudong Institute of Technology when we first participated in the Hangzhou exhibition.
Of course, this technology also has a certain limitation, that is, it is not precise and delicate. It only captures images of human movement, and if our body images coincide, it is more difficult to capture. Therefore, we generally use multiple 3D cameras to capture together in multiple directions to improve the accuracy of its capture and recognition calculations.
And the third category is the technology used in the smart sensor gloves that I showed earlier. Numerous sensors throughout the human body are used to record the movements of various parts of the body, so as to achieve accurate capture of the movement posture of the human body. ”
After talking so much in one breath, Wu Hao couldn't help swallowing his saliva. Although I don't know if the audience and the people watching the live broadcast can understand, some professional things still have to be explained clearly, otherwise it is easy to encounter the bar spirit to find fault and refute.
After breathing a sigh of relief, he continued: "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, and it is difficult for our average individual users to afford.
At first, this set of equipment was about one million yuan, and in recent years, with the continuous introduction of similar domestic equipment, the price of this kind of equipment has decreased a lot, but it is also about 100,000 yuan.
Moreover, the erection and maintenance of this kind of equipment is more troublesome and needs to be completed by professionals, so it is difficult to popularize it to our public users.
Of course, there are some such excellent products on the market, and you can also choose according to your actual situation, as long as these devices can support our operating system application protocol. ”
Saying that, Wu Hao changed a PPT, and then continued: "The second is 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, which is very suitable for some novices.
We will also be launching a 3D motion camera that will not only support our body motion capture, but also our gestures. Its recognition rate can reach more than 80%, which is completely sufficient in general application environments.
In other words, with this 3D somatosensory camera, you don't need to buy smart gloves and such complex motion capture equipment, so as to achieve basic control and operation of virtual scenes.
As an experiencer and developer, I recommend that you buy two at once if you want to. Then place them at an angle greater than 90 degrees to your body, so that it will have a higher recognition rate of your body movements.
Of course, it can't do fine operations, such as subtle movements of the body, and some subtle movements of our fingers on both hands, etc., it can't accurately identify them. It's not that our technology is inadequate, but it's a congenital defect that exists in this technology, and there is no way to solve it yet. ”
He paused, then took a sip of the water he had placed beside him, moistened his somewhat fiery throat, and then stood 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 the hot desert.
Seeing this, everyone present also gave him applause with encouragement. The content of today's press conference is all dry goods, so he needs to keep talking, which 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 posture and movements, this is also the technical product we are promoting to you today." It works the same as the technology we used to use in the Smart Sensor Glove, but we applied it to the capture of the whole body's movements.
It's not a simple copy, but there are a lot of things to consider, such as the fact that there are far more sensors than smart sensor gloves, and the technical difficulties of combining the order of these sensors and human posture correction. ”
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