Lei Jun often said one sentence: 'To be a good product that users can afford'. The brand of Xiaomi mobile phone, from the beginning of the launch, has already identified the direction for the future: the king of cost-effective! Born for a fever! The price of 3699 You can get the world's first pressure-sensitive screen fingerprint to unlock, the first to use GPS dual-frequency positioning, the first Android mobile phone that supports 'Face ID' and many other world-first features, plus the standard flagship 845 processing of Android flagship machine , and the back of the fuselage is completely transparent back cover, what more bicycles.
However, on the day when the Xiaomi 8 Discovery Edition was released, more eyes or sounds were focused on the transparent back cover of the Xiaomi 8 Discovery Edition. Is it really a motherboard? Is the decorative motherboard a sticker? When we pay attention to the appearance In the true sense, black technology '3D structure light', 'screen fingerprint' has been ignored.
Yes, I want to see what is the transparent back cover of the Xiaomi 8 exploration version. Please poke: "Millet 8 Exploratory Edition Experience The transparency of the back is the romance of straight men"
Explore one: 3D structured light
The first 3D structured light in Android phones is not facial recognition recognized by other manufacturers, Face++, face unlocking, etc. It is more advanced.
Apple and Xiaomi 8 explore the same 3D imaging principle, the difference is now on the transmitter, Apple's transmitter through the binary optics to form speckle, the speckle shape is not ideal, the algorithm is difficult, but the binary optics The high rate of over-rate and high energy utilization rate; the transmitter of the millet forms a coding pattern through the mask. The mask is an occlusion version with a hollow pattern, and the energy utilization rate is very low. The advantage is that the pattern is ideal and the algorithm is simple.
The face 3D recognition system based on 3D structured light technology adds a dot matrix projector based on the infrared face recognition scheme of Xiaomi 8 to obtain 3D depth information of the face, which is safer and better.
Popularly speaking, 3D mechanism light is 3D modeling of close-range astigmatism acquisition, and the TOF technology that has been said recently is long-distance light source acquisition for 3D modeling. 3D mechanism light is point-by-point scanning, while TOF technology is simultaneously obtained. Depth information of the entire image.
Next, let's try it.
In the setup menu we can find 'lock screen, password and fingerprint' to join 3D face data.
The process of entering is very smooth, just need to turn up and down, left and right, you can enter, the speed of unlocking is also quite fast. Of course, in addition to unlocking, there are fun Mi Meng, let us try.
Mi Meng can capture 52 kinds of facial muscle movements through 3D structure light, and generate different animated expressions. In addition to the picture and sound, after the production is completed, an MP4 file will be generated and can be shared on the social platform.
During the use, I found that the 3D structure light of the Xiaomi 8 exploration version captures the movement of our facial muscles. It is perfectly in place when I open one eye or half a half-closed mouth, and Excessive is also natural.
Explore 2: Not simple under-screen fingerprint
Because the Xiaomi 8 Discovery Edition is equipped with innovative under-screen fingerprint technology, its back cover is more integrated. Compared with the regular version of Xiaomi 8, the rear fingerprints will have more or less splitting.
Here we need to understand the difference between ultrasonic fingerprint and optical fingerprint: Ultrasound is a kind of radio frequency fingerprint. Because ultrasonic wave has penetrability, when working, use the ultrasonic wave of specific frequency emitted by the fingerprint module to scan the finger according to different fingerprint pairs. Different from the ultrasonic reflection, the 3D fingerprint image is created and compared with the fingerprint template entered in advance. The Xiaomi 8 exploration version uses the optical screen fingerprint technology.
Fingerprint fingerprints are no longer a secret. They are displayed for the first time on the vivo mobile phone. Let people discover that the original fingerprint recognition module can still be hidden. However, the fingerprint recognition technology of the first generation still has some flaws, such as slow recognition speed and long time scanning. Increase power consumption, mis-touch in the acquisition area, etc.
At the Xiaomi 8 conference, Xiaomi 8 became the world's first fingerprint-based fingerprint recognition technology. Unlike the vivo mobile phone, the pressure sensor module was added at the bottom of the screen. In order to prevent accidental touch and power saving, the user unlocks the mobile phone. , you need a little hard pressure to trigger fingerprint recognition, so the sensor does not have to stand by, saving power.
How is the experience?
Since optical fingerprints rely mainly on light to connect sensors and fingerprints when working, they are sensitive to light requirements. Ordinary cell phone films have an effect on light because they have a layer of material between the screen and the fingers. , thus affecting the speed and accuracy of fingerprint recognition.
It happens that the author is a person who loves the machine. After receiving the exploration version of Xiaomi 8, it has posted a layer of tempered film for it. Can it be successfully entered and unlocked?
There is still light effect when entering, of course, there are also when unlocking.
From the above picture, you can see the Xiaomi 8 exploration version with the tempered film attached. It is very smooth during the entry process, and it is quite smooth when unlocked.
summary:
From the Motorola Artix 4G, the road of Android smartphones and fingerprints has gone for eight years. It has developed into today's 3D structured light and screen fingerprints. Where will the next change be? I believe this is also Xiaomi's exploration version. 'The mission is.
On the Xiaomi 8 Discovery Edition, we have seen the most mature and secure encryption and decryption solution. 3D structured light + screen fingerprint technology is bound to spread in 1-2 years. There is no doubt that the screen fingerprint is compared to the back fingerprint. With higher plasticity, it is more in line with the trend of full-screen design nowadays; in the future, it is even possible to integrate multiple sensors to achieve different positions in any position or even full screen. Thanks to these pioneering manufacturers, they will try them. It has become the common sense of the whole market. Although the technology-oriented slogan has never heard the original feeling, we can learn from the changes in the mobile phone again and again...
Lei Jun often said one sentence: 'To be a good product that users can afford'. The brand of Xiaomi mobile phone, from the beginning of the launch, has already identified the direction for the future: the king of cost-effective! Born for a fever! The price of 3699 You can get the world's first pressure-sensitive screen fingerprint to unlock, the first to use GPS dual-frequency positioning, the first Android mobile phone that supports 'Face ID' and many other world-first features, plus the standard flagship 845 processing of Android flagship machine , and the back of the fuselage is completely transparent back cover, what more bicycles.
However, on the day when the Xiaomi 8 Discovery Edition was released, more eyes or sounds were focused on the transparent back cover of the Xiaomi 8 Discovery Edition. Is it really a motherboard? Is the decorative motherboard a sticker? When we pay attention to the appearance In the true sense, black technology '3D structure light', 'screen fingerprint' has been ignored.
Yes, I want to see what is the transparent back cover of the Xiaomi 8 exploration version. Please poke: "Millet 8 Exploratory Edition Experience The transparency of the back is the romance of straight men"
Explore one: 3D structured light
The first 3D structured light in Android phones is not facial recognition recognized by other manufacturers, Face++, face unlocking, etc. It is more advanced.
Apple and Xiaomi 8 explore the same 3D imaging principle, the difference is now on the transmitter, Apple's transmitter through the binary optics to form speckle, the speckle shape is not ideal, the algorithm is difficult, but the binary optics The high rate of over-rate and high energy utilization rate; the transmitter of the millet forms a coding pattern through the mask. The mask is an occlusion version with a hollow pattern, and the energy utilization rate is very low. The advantage is that the pattern is ideal and the algorithm is simple.
The face 3D recognition system based on 3D structured light technology adds a dot matrix projector based on the infrared face recognition scheme of Xiaomi 8 to obtain 3D depth information of the face, which is safer and better.
Popularly speaking, 3D mechanism light is 3D modeling of close-range astigmatism acquisition, and the TOF technology that has been said recently is long-distance light source acquisition for 3D modeling. 3D mechanism light is point-by-point scanning, while TOF technology is simultaneously obtained. Depth information of the entire image.
Next, let's try it.
In the setup menu we can find 'lock screen, password and fingerprint' to join 3D face data.
The process of entering is very smooth, just need to turn up and down, left and right, you can enter, the speed of unlocking is also quite fast. Of course, in addition to unlocking, there are fun Mi Meng, let us try.
Mi Meng can capture 52 kinds of facial muscle movements through 3D structure light, and generate different animated expressions. In addition to the picture and sound, after the production is completed, an MP4 file will be generated and can be shared on the social platform.
During the use, I found that the 3D structure light of the Xiaomi 8 exploration version captures the movement of our facial muscles. It is perfectly in place when I open one eye or half a half-closed mouth, and Excessive is also natural.
Explore 2: Not simple under-screen fingerprint
Because the Xiaomi 8 Discovery Edition is equipped with innovative under-screen fingerprint technology, its back cover is more integrated. Compared with the regular version of Xiaomi 8, the rear fingerprints will have more or less splitting.
Here we need to understand the difference between ultrasonic fingerprint and optical fingerprint: Ultrasound is a kind of radio frequency fingerprint. Because ultrasonic wave has penetrability, when working, use the ultrasonic wave of specific frequency emitted by the fingerprint module to scan the finger according to different fingerprint pairs. Different from the ultrasonic reflection, the 3D fingerprint image is created and compared with the fingerprint template entered in advance. The Xiaomi 8 exploration version uses the optical screen fingerprint technology.
Fingerprint fingerprints are no longer a secret. They are displayed for the first time on the vivo mobile phone. Let people discover that the original fingerprint recognition module can still be hidden. However, the fingerprint recognition technology of the first generation still has some flaws, such as slow recognition speed and long time scanning. Increase power consumption, mis-touch in the acquisition area, etc.
At the Xiaomi 8 conference, Xiaomi 8 became the world's first fingerprint-based fingerprint recognition technology. Unlike the vivo mobile phone, the pressure sensor module was added at the bottom of the screen. In order to prevent accidental touch and power saving, the user unlocks the mobile phone. , you need a little hard pressure to trigger fingerprint recognition, so the sensor does not have to stand by, saving power.
How is the experience?
Since optical fingerprints rely mainly on light to connect sensors and fingerprints when working, they are sensitive to light requirements. Ordinary cell phone films have an effect on light because they have a layer of material between the screen and the fingers. , thus affecting the speed and accuracy of fingerprint recognition.
It happens that the author is a person who loves the machine. After receiving the exploration version of Xiaomi 8, it has posted a layer of tempered film for it. Can it be successfully entered and unlocked?
There is still light effect when entering, of course, there are also when unlocking.
From the above picture, you can see the Xiaomi 8 exploration version with the tempered film attached. It is very smooth during the entry process, and it is quite smooth when unlocked.
summary:
From the Motorola Artix 4G, the road of Android smartphones and fingerprints has gone for eight years. It has developed into today's 3D structured light and screen fingerprints. Where will the next change be? I believe this is also Xiaomi's exploration version. 'The mission is.
On the Xiaomi 8 Discovery Edition, we have seen the most mature and secure encryption and decryption solution. 3D structured light + screen fingerprint technology is bound to spread in 1-2 years. There is no doubt that the screen fingerprint is compared to the back fingerprint. With higher plasticity, it is more in line with the trend of full-screen design nowadays; in the future, it is even possible to integrate multiple sensors to achieve different positions in any position or even full screen. Thanks to these pioneering manufacturers, they will try them. It has become the common sense of the whole market. Although the technology-oriented slogan has never heard the original feeling, we can learn from the changes in the mobile phone again and again...
