The screen capture function of the knuckles in Huawei mobile phones is realized by the cooperation of software and hardware, not just separate software and hardware. Let's take a look at the specific principle of this technology.
In fact, the technology of knuckle screen capture is comprehensively judged by a variety of recognition methods. When we tap the screen with our fingertips, fingertips and knuckles respectively, the area of touch sensing is different, and the sound when tapping is different from the frequency of mobile phone vibration. As long as the system recognizes that these values are within a certain range, the knuckle screen capture can be realized.
When we use knuckles for screen capture, the system needs to judge the following elements:
When one of the above items fails to meet the requirements, the knuckle screen capture will not be triggered. For example, I experimented with the Glory 2 mobile phone in my hand, and came to the following conclusions:
To sum up, Huawei's mobile phone's knuckle screen capture is realized by using acceleration sensors and software algorithms, and the sensitivity will be different according to different users, and some of them have greatly decreased after changing the screen of the mobile phone, which should be the main reason for affecting the above three elements.
Wen/Xiao Yiping Technology
Huawei's finger joint screenshot should be one of the best screenshot methods in the market at present, which can be completed with one hand and is not easy to touch by mistake. The main difficulty of this function is how to distinguish the difference between joints and fingers, but also to achieve extremely high accuracy and reaction speed. It is very rare to do anything to the extreme, so how is this function realized? Let me talk about it in detail.
This strange hand company was founded by a Korean named Sang Won Lee in 212. Although many people in this company didn't know about his existence at all, this company has successfully won the authorization intention of many leading domestic mobile phone companies including Huawei, among which Qeexo strange hand company licensed FingerSense technology to Huawei and EarSense technology to Huawei.
it can be said with certainty that the realization of this function must be realized by an algorithm, and the algorithm sounds very tall, but it is actually just a series of if and elseif judgments. The difficulty lies in the accumulation of big data and autonomous learning, which is not particularly difficult to understand in principle.
According to the patent document of Qeexo, the process of realizing this function is probably as follows:
There will be an algorithm built into the system, which can be understood as a function if you have learned programming. This algorithm can monitor every time you touch the screen, and then analyze the data collected by the monitored behavior. The approximate steps are as follows:
Then, through the comparison of the data collected three times, it can be judged whether it is a finger.
Don't think it's simple. The biggest difficulty of this technology lies in how to accurately collect these very fine data. Secondly, it requires the whole execution efficiency of the algorithm to be very high, because all these operations need to complete the whole feedback process within milliseconds, otherwise people will feel the screen delay.
So, if there is no accident, this function should be realized by assembly language which is biased towards the hardware language level, because the higher the language level, the more complicated the steps that need to be explained, the lower the execution efficiency, and how difficult the assembly language is to learn. If you have some programming skills, you should be able to understand it.
Generally speaking, from this function, we can see that Huawei has a high demand for product experience. If an ordinary company uses the most easy-to-realize two-finger screen capture, it is completely ok, but Huawei has chosen a relatively expensive method.
The screenshot of Huawei's mobile phone knuckles is realized by software.
This technology is a software algorithm technology developed by American Qishou Company. Many screen technologies of this company have been used in many brands, so it can be regarded as a behind-the-scenes hero.
In fact, this technology is not called knuckle screen capture, but called FingerSense touch technology. There are relevant cooperation instructions on Huawei mobile phones, which is done decently. After realizing the powerful functions, I don't forget to show my partners a brand.
The company's algorithm can extract the corresponding parameters of the screen, distinguish the data to determine whether the finger tip, knuckles or fingernails are currently being touched, determine the body parts corresponding to each gesture through the algorithm, and then assign customized instructions respectively.
joint screen capture depends on the signal of gravity sensor, so if you tap the screen very lightly, the phone will not receive the signal. Just make sure your knuckles are "double-clicked". Pay attention, knock harder, and pay attention to the rhythm. The rhythm of knocking is faster and the interval is not too long.
For partial screenshots, you should quickly draw the pattern you want to intercept with your knuckles at the moment when you tap the screen with your knuckles. You must also pass the starting point from the beginning to the end of drawing. Simply put, you should try to draw a complete closed figure, so that the success rate is high.
if you only know how to take screenshots with two taps, then you really don't have the skills of Huawei.
Let's not talk about the principle of Huawei's knuckle screenshot for the time being. Let's talk about some techniques that you may not know about Huawei's knuckle screenshot.
Settings-Intelligent Assistant-Gesture Operation-Intelligent Screen Capture Open.
how did Huawei's knuckles achieve screen capture?
Screenshot, the principle of knuckles recognition is contact area and vibration. When we tap with gravity sensor software, it is basically difficult to trigger, and it needs to reach a certain sense of vibration.
Huawei's finger joint screenshot actually uses FingerSense touch technology. By tapping the screen with the user's hand, we can extract the corresponding algorithm and judge the corresponding parameters to extract whether it is a finger joint or a nail. With the cooperation of sensors and algorithms, we can achieve the screenshot.
Finally, to sum up:
When we are tapping, we can judge whether there is a signal by relying on the gravity sensor and the FingerSense touch technology, thus forming a screenshot.
I bought a Huawei P9 plus in 216, which supports the screenshot of knuckles. I have always taken good care of it, but I fell to the ground one day after using it for almost 2 years, and the outer screen was broken. In fact, it doesn't affect the use, and the screenshots of the knuckles are still in normal use. I feel distressed, and I always feel diaphragm when I break a piece. Because I have my own experience in repairing the external screen of a tablet computer, I found an external screen from the Internet and changed it myself, thinking it would be easy to fix it. The result was sad, and the first time the outer screen was taken with steel wire, the inner screen was directly scrapped.
Then I searched the Internet for the screen of P9 plus everywhere, and the result of searching for a few days was
1. TFT screen. The screen display effect is average, and it does not support screen knuckles, and screen ghost may appear.
2, the original screen, without screen knuckles screenshot.
3. Original screen with screen knuckle screenshot.
I especially like Huawei's function of taking screenshots of knuckles. It's really convenient to take screenshots, and I have obsessive-compulsive disorder, so I still need to take screenshots of knuckles. Then, I tried to knock off the original broken screen, which was not easy to handle, and I was afraid that it would not stick well then, so I bought a screen assembly directly.
Reason:
1. You can't use the finger joint screenshot correctly with nails, fingers and skin, but you can use the finger joint.
2. When the knuckles can be used for irregular screen capture, only the area crossed by the knuckles is captured, and this area needs vector calculation.
3. Using knuckles to draw "S", "W" and "C" can't be recognized by hardware, so it needs software to recognize and handle it.
Open in sequence: Settings-Intelligent Assistant-Gesture Control-Intelligent Screen Capture-Open
Finger joint gestures can not only screen capture, but also recognize letter gestures to open the corresponding application interface, and draw a straight line in the middle of the screen to split the screen.
The screen capture function of knuckles needs hardware support, and it can only be realized with the support of software and corresponding algorithms.
thank you for your question. Huawei mobile phone knuckle operation, hardware and software support.
the principle of knuckle recognition technology. Because of the particularity of human knuckle structure, a sensor is equipped in the mobile phone to record the touch area of knuckle and sense the gravity acceleration of knuckle. When the knuckles hit the screen, this sensor can mainly do three things. First, judging the vibration frequency caused by gravity acceleration conforms to the force characteristics of knuckles. Second, by judging the touch area, it is proved that this refers to the joint making action. Thirdly, the judgment result is transmitted to the instruction to trigger the low-level driver of the mobile phone. The basis of successful judgment is the algorithm, which can separate its joints from other objects.
FingerSense cooperates with Huawei. If the principle of finger joint recognition technology is not complicated, then it is necessary to pursue higher recognition rate and lower delay through more accurate algorithms. Huawei uses partner FingerSense touch technology, combined with Qeexo software algorithm. This algorithm has the basic data of body parts and gestures, and can accurately extract parameters such as screen area, frequency and force. By comparison, it can be judged which part of the finger touches the mobile phone, whether it is a knuckle. What action is it, a slide screen or a screen capture? After the judgment, the customized screen instructions are released.
precautions for knuckle operation. First, the operation of mobile phone knuckles includes closed pattern screen capture, scrolling screen capture, screen recording and screen splitting. The gestures are different and should be familiar with them respectively. Second, knuckles should be struck with a certain strength and frequency. If the mobile phone screen is covered with film, the knuckles need to be operated with great force, which is similar to the "click" sound of knocking at the door. If you double-click, you should tap twice continuously and quickly, and the interval cannot be too long. When taking a partial screen shot, the knuckles do not lift on the screen, but keep sliding, and the trajectory should be closed.
welcome to pay attention, criticize and correct me.
let's start with the conclusion: the screenshot of Huawei's mobile phone knuckles is realized by pure software.
Huawei's gesture control is based on FingerSense technology developed by Qeexo. By understanding the user's various operations on the screen, FingerSense can enhance the functions of touch devices and make the devices have a better user experience. Its goal is to make the operation more intelligent, powerful and easy to use.
supported by the lightweight and high-speed machine learning technology of Qeexo, FingerSense claims to be the only pure software solution in the world, which can provide functional products for touch screen to recognize touch gestures.
I have to say that this innovation in touch-screen interaction has really improved our operational efficiency in daily applications.
I hope the above can help you to solve your doubts. For detailed technical information, you can go to qeexo on google. Welcome to leave a message.
The screen capture function of knuckles in Huawei's mobile phone is realized by the cooperation of software and hardware, not by separate software and hardware.
When we tap the screen with our fingertips, fingertips and knuckles respectively, the touch-sensitive area is different, and the tapping sound is different from the vibration frequency of the mobile phone. As long as the system recognizes that these values are within a certain range, the knuckles can be captured.
No matter how it is implemented, it's not as easy to use as three-finger screen capture.
Before the software and hardware were implemented in coordination, the screen of my glory was changed and then pressed (the screen inside the display was the original screen of Huawei p1), so I couldn't take a screenshot of my knuckles, and then I changed the original screen.