In fact, the technology of knuckle screen capture is comprehensively evaluated by various recognition methods. When we tap the screen with our fingertips, fingertips and knuckles respectively, the area of touch sensing is different, and the tapping sound and the frequency of mobile phone vibration are also different. As long as the system recognizes that these values are within a certain range, it can realize knuckle screen capture.
When we use knuckles for screen capture, the system needs to judge the following elements:
When any of the above requirements are not met, the knuckle screen capture will not be triggered. For example, I took the glory 20 mobile phone in my hand to do the experiment and came to the following conclusion:
To sum up, Huawei mobile phone's knuckle screen capture is realized by acceleration sensor and software algorithm, and the sensitivity will be different according to different users. Some mobile phone screens have greatly reduced their sensitivity, which should be the main reason that affects the above three factors.
Text/talk about technology
Huawei fingering screenshots should be one of the best ways to experience screenshots on the market at present. Only one hand is needed to complete the operation, and it is not easy to touch it by mistake. The main difficulty of this function is how to distinguish the difference between joints and fingers, and 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 elaborate on it.
This strange handicraft company was founded by a Korean named Li Xiangyuan. Established on 20 12. Although many people in this company don't know his existence at all, this company has successfully obtained the authorization intention of several leading domestic mobile phone companies including Huawei. Among them, Qeexo Weird Hand Company licensed FingerSense technology to Huawei and EarSense technology to OPPO.
To be sure, 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. In principle, it is not particularly difficult to understand.
According to the patent document of Qeexo, the process of realizing this function is probably like this:
The system will have a built-in algorithm, and those who have learned programming can be understood as functions. The algorithm can monitor every time you touch the screen, and then analyze the data collected by the monitored behavior. The general steps are as follows:
Then, by comparing the data collected three times, we can judge whether it is a finger or a knuckle.
Don't think it's easy. The biggest difficulty of this technology is how to accurately collect these very fine data. Secondly, it requires the overall execution efficiency of the algorithm to be very high, because these operations need to complete the whole feedback process within milliseconds, otherwise people will feel the screen delay.
Therefore, if there is no accident, this function should be realized by assembly language that is biased towards hardware language level, because the higher the language, the more complicated the steps to be explained, the lower the execution efficiency, and the more difficult the assembly language is to learn. If you have a little programming skills, you should be able to understand it.
In general, it can be seen from this function that Huawei has a high demand for product experience. If ordinary companies use the most easy-to-achieve two-finger screen capture, it is fine, but Huawei has chosen a relatively expensive method.
Huawei's mobile phone knuckle screenshot is realized by software.
This technology is a software algorithm technology developed by American Qishou Company. Many screen technologies of this company are used in many brands, so it is a hero behind the scenes.
In fact, this technology is not called knuckle screen capture, but called FingerSense touch technology. Huawei's mobile phone has relevant cooperation instructions. This is a decent thing to do, and it is also a brand display for partners after realizing powerful functions.
The company's algorithm can extract the corresponding parameters of the screen, distinguish the data to judge whether the fingertip, knuckles or fingernails are touched at present, and the body part judged by the algorithm corresponds to each gesture, and then assign customized instructions respectively.
The combined screen capture depends on the signal of gravity sensor, so if you tap the screen very lightly, the mobile phone will not receive the signal. Just make sure your knuckles are double-clicked. Pay attention, knock hard, pay attention to the rhythm. Knock faster and don't have too long intervals.
On the premise of tapping the screen with your knuckles, you should quickly draw the pattern you want to intercept with your knuckles at the moment when your knuckles tap the screen. The drawing must also go through the starting point from beginning to end. Simply put, you should try to draw a complete closed diagram, which has a high success rate.
If you only know how to tap screenshots twice, then you really don't have Huawei's technology.
Let's not talk about the principle of Huawei's knuckle screenshots. Let's talk about some skills that you may not know about Huawei screenshots.
Settings-Smart Assistant-Gesture Operation-Smart Screen Capture Open.
How does Huawei's knuckles achieve screen capture?
Screenshot, the principle of knuckle recognition is contact area and vibration. When we knock, the unlocking mode formed by gravity sensing software is basically difficult to trigger, and it needs to achieve a certain sense of vibration.
Huawei's finger joint screenshots actually use FingerSense touch technology. By tapping the screen with the user's hand and extracting the corresponding algorithm to judge the corresponding parameters, the finger joint or nail can be extracted. With the cooperation of sensors and algorithms, screenshots can be achieved.
Finally, to sum up:
When we tap, we rely on the gravity sensor to judge whether there is a signal under FingerSense touch technology, thus forming a screenshot.
I bought a Huawei P9 plus on 20 16, which supports the screenshot of knuckles. I have always loved it, but after using it for almost 2 years, one day it fell to the ground and the outer screen was broken. In fact, it does not affect the use, and the screenshot of the knuckles is still in normal use. I am distressed, and I always feel a diaphragm when I break a piece. Because I have experience in repairing the external screen of tablet computer, I found an external screen from the Internet and changed it myself, thinking that it would be easy to repair it. The result was very sad, and the 1 of the outer screen was removed with steel wire, and the inner screen was directly scrapped.
Then I went online and searched the screen of P9 plus everywhere. After searching for a few days, the result was
1, TFT screen, screen display effect is average, screen knuckles are not supported, and screen ghost may appear.
2, the original screen, screenless knuckle screenshot.
3, the original screen, with a screenshot of the knuckles.
I especially like Huawei's knuckle screenshot function. Screenshots are really convenient. I also have obsessive-compulsive disorder. I still have to take screenshots of my knuckles. Then, I tried to knock off the original broken screen, which was not easy to handle. I was afraid that it would not stick well, so I bought a screen component directly.
Reason:
1, using nails, fingers, and skin can't correctly use knuckle screenshots, but using knuckles can.
2. When the knuckles can be used for irregular screen capture, only the area where the knuckles pass through is intercepted, and this area needs vector calculation.
3. Draw "S", "W" and "C" with your knuckles. The hardware is unrecognizable, and the software needs to be recognized and processed.
Open in turn: Settings-Smart Assistant-Gesture Control-Smart Screen Capture-Open.
In addition to screen capture, knuckle gestures can also recognize letter gestures to open the corresponding application interface, and you can also draw a straight line in the middle of the screen to split the screen.
The screen capture function of knuckles needs hardware support, but it also needs software and corresponding algorithms.
Thank you for your question. Huawei mobile phone knuckle operation, software and hardware support.
Principle of knuckle recognition technology. Due to the particularity of the structure of human knuckles, a sensor is equipped in the mobile phone to record the touch area of knuckles and sense the gravity acceleration of knuckles. When the knuckles hit the screen, this sensor can mainly do three things. Firstly, it is judged that the vibration frequency caused by gravity acceleration accords with the stress characteristics of knuckles. Secondly, by judging the touch area, it is proved that this refers to the movement of the joints. Thirdly, the judgment result is transmitted to the instruction to trigger the underlying driver of the mobile phone. The basis of judging success is 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 a more accurate algorithm is needed to pursue higher recognition rate and lower delay. Huawei adopts 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 strength. By comparison, it can be judged which part of the finger touches the mobile phone, whether it is a knuckle. What is the action, sliding screen or screen capture? After the judgment, release the customized screen instruction.
Points for attention in knuckle operation. First, the operation of mobile phone knuckles includes closed mode screen capture, scrolling screen capture, screen recording and screen splitting. Gestures are different, so you should be familiar with them separately. Second, the knuckles should be hit with a certain strength and frequency. If the screen of the mobile phone is covered with film, the knuckles need to be operated with great force, similar to the "click" sound of knocking at the door. If you double-click, tap it twice in a row, and the interval should not be too long. When taking a partial screenshot, the knuckles do not lift on the screen, but keep sliding, and the trajectory should be closed.
Welcome attention, criticism and correction.
First of all, conclusion: Huawei's mobile phone knuckle screenshot is realized by pure software.
Huawei's gesture control adopts FingerSense technology developed by Qeexo Company: By understanding the various operations of users 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 Qeexo lightweight high-speed machine learning technology, FingerSense claims to be the only pure software solution in the world, which can provide touch gesture recognition products for touch screens.
I have to say that this innovation of touch screen interaction has really improved our operational efficiency in daily applications.
I hope the above can help you solve your doubts. Detailed technical information can qeexo downloaded from google. Welcome to leave a message
The screen capture function of knuckles in Huawei mobile phone is realized through the cooperation of software and hardware, rather than separate software and hardware.
When we tap the screen with our fingertips, fingertips and knuckles, the area of touch sensing is different, and the tapping sound and the frequency of mobile phone vibration are also different. As long as the system recognizes that these values are within a certain range, it can realize knuckle screen capture.
No matter how it is implemented, it is not as easy to use as a three-finger screen capture.
Before the software and hardware were not well coordinated, my glory changed the screen and then pressed it (the screen inside the display was the original screen of Huawei p 10), so I couldn't take a screenshot of my knuckles, so I changed the original screen.