Yan: about iPhone 8 and biometric technology
weifengwang· 2017-08-28 05:14:12
" in the past 5 years the development of biological recognition technology 5S Touch and ID iPhone for apple, this kind of technology has gained more recognition and use among consumers. Apple will use face recognition technology in iPhone 8, new sources said. We don't know how Apple will take advantage of the technology, but if Apple decides to use the technology, then they should have noticed the following issues.
fingerprint is a good start, but it has many limitations in the
products for the consumer market in the use of Touch ID fingerprint sensor, which ensures the safety of the equipment, and is convenient for users to use, which is a significant progress in biotechnology applications. For many users, the finger is placed on the fingerprint sensor to verify that they can get rid of the trouble of remembering the password and the PIN code, so they like the biometric approach very much. For manufacturers, fingerprint sensors also have many advantages - low cost, low energy consumption, and easy to embed. But the sensor itself has many limitations.
most of the time, for most users, the fingerprint sensor performance is good. But when the user's finger is too dry or too wet, or in a wet, wet environment, the verification accuracy of the fingerprint sensor will be affected. Older people, fingerprints, the more difficult to verify. Want accurate scanning, users have to put the finger in the right place, Home key is so small, the user fingerprint verification will be more necessary to care about their finger position, right?.
Apple may be able to make up for or replace Touch ID in iPhone 8 by face recognition technology. Apple is willing to try a variety of different forms of biometric authentication, to give users a better experience, but also proved that Apple's development team is really smart, is focused on the future.
from a practical and usability point of view, it is preferable to use multiple authentication formats at the same time. Different types of users prefer different types of authentication. One form may be better for some user or more convenient. Maybe which form is used is only the user's personal preference. Samsung has tried two ways of using iris authentication and fingerprint verification on their devices, so let's see how Apple will deal with the balance between the two authentication formats
's difficulty in embedding fingerprint sensors beneath LCD or OLED screens,
Apple may have considered embedding fingerprint sensors underneath the OLED screen of iPhone 8. In theory, this allows apple to use Touch, ID and face recognition sensors on this platform, while minimizing borders. But it's really easier said than done to put a fingerprint sensor under the LCD or OLED screen. The
Touch ID sensor is actually made up of three main components: a laser cut sapphire crystal, a stainless steel ring and a capacitive sensor. Although these components seem common, virtually every part has its own unique function. The
sapphire crystal can not only protect the fragile sensors underneath it, but also act as lenses to help the sensors focus on the user's fingerprints. If the hardness of the glass material is not high enough, it is prone to scratches, and the fingerprint image obtained by the sensor will be defective and can not work properly.
around the Home key stainless steel ring, but also in the whole Touch ID system plays an important role. When you put your finger on the Home key, the stainless steel ring detects it immediately and wakes up the sleeping sensor, so that the sensor doesn't have to remain open all the time. The stainless steel ring can also shield the outside electromagnetic interference when the sensor reads the fingerprint, so as to improve the recognition rate.
although the OLED screen assembly thickness is thinner than the LCD screen assembly, the two screens use almost the same glass coverage. Although the thickness of the screen glass is only 1mm, it is still 5 times thicker than iPhone 7, Touch ID sensor and sapphire crystal. When the
user places the finger to verify that the space between the fingerprint surface and the capacitive sensor array increases, then the fingerprint field corresponding to the Touch ID sensor will blur. In the current Touch ID, the lenses are already very thin, minimizing the possibility of distortions and distortions. The
sensor in the thick lens, such as iPhone 8 directly on the screen behind the glass, not by the fuzzy correction in any form, will cause the fingerprint image pixels affected, reduce the recognition accuracy.
although this problem can be solved by ultrasonic technology. Verifiable accuracy and energy performance may well be compromised, and cost considerations are a factor to consider.
biological authentication based on touch is different, iris recognition and face recognition of position, fingerprint and other requirements. If properly handled, this non touch biometric form can lead to a more consistent experience and is more convenient to use. Because the user's use of conditional changes affecting biometric solutions does not work properly, the situation will be greatly reduced. Core users will get better