In addition to bringing us the more conventional flagship phone, the mi 8, lei jun unexpectedly announced the existence of a transparent exploration version of the device at the May 31 launch. Millet 8 transparent version exploration is a very big surprise to us, because it is a with structured light 3 d face recognition and fingerprint technology under the screen mobile phone products, and not on the market similar products.
But in fact, both 3D structured light and off-screen fingerprint technology are emerging technologies, such as apple’s sophisticated 3D structured light technology, Face ID. Vivo has the world’s first commercially available off-screen fingerprint technology and has launched two products.
What is the level of 3D structured light and off-screen fingerprint technology of xiaomi 8? What are the advantages compared to apple and vivo, or other similar technologies? What are the disadvantages? Most rice noodles must want to know.
3D structured light technology has come the same way
Lei jun also said at the news conference, although everyone is called “structured light”, but in fact millet 8 exploration on the structure and the structure of the apple iPhone X light is broadly similar, different details.
Is the same place, both principle and hardware configuration are basic and same, millet version 8 explore and iPhone X “forehead” have an infrared camera, ToF distance sensor, floodlight sensing elements and lattice projector. When the face recognition function is in operation, these four main sensors start at the same time and work together.
(iPhone X’s bangs)
First, the ToF distance sensor detects the distance between the face and the phone to see if it is within the range of recognition. If confirmed within the scope of the recognition, infrared lens, optical sensing elements and lattice projector will start to work, lattice projector casting on person face tens of thousands of sensor, the infrared camera and optical sensing elements to catch the eye is not visible, and generate, the 3 d contour of the face and back to the processor compare, after comparison by will unlock the phone.
In terms of hardware and workflow, the xiaomi 8 exploration is the same as the iPhone X. Actually iPhone X provide supply chain with structured light 3 d face recognition technology direction, that is to say the iPhone of X is the target of the makers, so the hardware configuration and working principle of the same is very normal things.
The difference between the two is mainly reflected in the encoding structure light scheme adopted in the exploration version of xiaomi 8, and the speckle structure light scheme adopted by iPhone X. In fact, there are mainly formal differences between the two. In terms of the results, they should be similar in terms of security and accuracy. The reason why xiaomi didn’t adopt the iPhone x-style shift plan should be the choice in the supply chain.
Since the technical specifications of the two are so close, the problems on the iPhone X are certain to be inevitable with the mi 8 exploration. Apple has acknowledged that facial ids can’t tell twins apart, and that users who have had plastic surgery can’t use the feature properly, and the mi 8 explorer should be just as helpless in this regard as the iPhone X.
More humanized underscreen fingerprint technology
Don’t know whether lei jun in order to “forced the first”, so to millet version 8 exploration under the screen of the fingerprint technology, combined with the function of pressure, so the millet version 8 explore became the “world’s first pick up pressure screen fingerprint identification technology” of the mobile phone, play word games.
Therefore, compared with other mobile phones, the biggest difference of the under-screen fingerprint technology of xiaomi 8 exploration is that it has added pressure sensing function. According to lei jun, the sensitivity function is added to prevent accidentally touch and save electricity, when users to unlock the phone, you push hard on the slightly hard to trigger the fingerprint recognition, so the sensors need not always standby, save power.
At first sight this explanation does make sense, and so does the truth. The underscreen fingerprint technology used in the xiaomi 8 exploration edition is the optical underscreen fingerprint provided by xinsi and huiding. If the sensor continues to operate, it will indeed consume more electricity than the traditional capacitive fingerprint identification module.
At present we cannot experience carefully millet version 8 exploration under the screen of the fingerprint technology, but according to the previous experience vivo X21 fingerprint screen version of the experience, appeared to be an scheme using the pressure also will not bring much impact on life. The addition of the pressure-sensitive feature also means that the mi 8 exploration version has one more step to unlock than other off-screen fingerprint phones. It is not clear whether this is a good thing or a bad thing.
Structural light + prints under the screen are expected to become mainstream
At the moment, light and 3 d structure in fingerprint technology on a mobile phone screen phenomenon is very rare that specific product actually only millet version 8 to explore such a mobile phone), but as the industry and the progress of the supply chain, fast in the future have such technology “, “double black products will appear a lot.
Will say so, because millet 8 explore version of 3 d structure light supplier Himax said, qualcomm + Himax SLiM structure light project going very well, and also in gradually increase production capacity, production capacity is expected to reach 2 million units.
Qualcomm + Himax SLiM scheme is actually applied in high-end android mobile phone 3 d structure of the light solution, from the point of such capacity, the future should meet the needs of most manufacturers of high-end products. By the same token, the screen fingerprint technology has officially changed from the previous experimental stage to the mass production stage. A large number of mobile phones shipped out, including vivo X21, have a bright future.
The xiaomi 8 exploration is arguably the first to launch a combination of black technology such as “3D structured light + screen fingerprint”, but such a design will soon become the flagship device. That’s great news for consumers.Maybe You need to wholesale cell phone accessories.