First of all, how does Face ID recognize faces?
Face ID is realized by infrared lens, floodlight and dot matrix projector, which can instantly perceive the user's facial features through 30,000 points and instantly identify the user.
Second, is Face ID easy to crack?
According to Apple, the security level of Face ID is twice as high as that of Touch ID. The cracking probability of the touch ID is one in 500,000, and the Face ID belongs to one in a million. In the experiment of stealing brush, we used all kinds of model faces of Hollywood model team and found that the imitation was unrecognizable.
Third, is the infrared ray used to identify faces harmful to health?
Infrared ray is a kind of invisible light with a radiation dose of 25-65%, which can reach epidermis and dermis. Different from ultraviolet rays, the thermal radiation effect of infrared rays can increase the skin temperature and enhance the sterilization ability. Due to the increase of skin temperature, the deposition of lipids in blood vessels can be reduced, but the problems such as the increase of skin temperature, telangiectasia and congestion, and the increase of water evaporation from epidermal skin will have adverse effects on the skin.
Using this characteristic of infrared ray in clinical medicine, some patients will be treated with ointment smearing and infrared ray irradiation, which usually takes about 20 minutes. It is found that the absorption effect of drugs will be enhanced.
At the same time, infrared rays will also enhance the damage of ultraviolet rays to the skin and accelerate skin aging.
If skin care products with the same sun protection coefficient are applied, it is found that the sun protection effect under outdoor natural light is better than that under indoor artificial light source.
In glass manufacturing and iron and steel smelting's work, there will be infrared damage to the eyes, mainly cataracts and eye diseases caused by excessive infrared radiation. There is still an unclear problem in this field of occupational disease research, that is, the relationship between injury dose and reaction.
In the process of Face ID recognition, the time is very short, and the accumulated time of a whole day should not be very long, so the damage to skin and eyes should be incomparable with these.
But for the health of skin and eyes, it is recommended to eat more fruits and vegetables and increase the intake of vitamin C, carotene and anthocyanins.
References:
1, research progress of eye injury by visible light and near infrared ray, Zhang Xiao et al., Guangzhou Institute of Occupational Disease Prevention and Control, Guangdong Institute of Occupational Disease Prevention and Control, china occupational medicine, 20 13. 2. 40.
2. Baidu encyclopedia Face ID
3. Vitamin B 12 combined with far-infrared radiation in the treatment of perineal radiation-induced skin injury, Chu et al., Department of Radiotherapy, Nantong Cancer Hospital, Journal of Nursing, 20 15, Volume 30,No. 14.
4. The curative effect of 4.MEBO combined with infrared radiation on perianal skin injury after fecal incontinence,
The First Affiliated Hospital of Nanchang University, Jiangxi Provincial People's Hospital ordinary care 20 14 10 Volume 12 No.29.
This answer is not my specialty. If there are any mistakes, please criticize and correct them.
I haven't used the iphonex face Ⅰ d function, and I don't understand. If I use it for a long time, it may be harmful to human health. For example, I look at the screen of my mobile phone every day, and my eyes are very tired, and my eyesight is very poor, which is harmful.
Whether it is harmful depends on what technology is used in faceID function of iphonex, and whether this technology is harmful to human body, such as radiation that everyone is most worried about.
FaceID function is a "face recognition" released by iPhone, and it is a revolutionary innovation of FaceID in the field of mobile phones, just like iphone5s is equipped with fingerprint recognition.
So what technology does faceID use?
According to relevant sources, faceID is different from other facial recognition "iris recognition", and its unlocking uses infrared projection. If it is other technology, I don't know, because I haven't studied faceID either. If it's infrared projection technology, I'll tell you it won't hurt your body.
Why?
First, infrared ray is an electromagnetic wave between microwave and visible light. Its energy is lower than that of light. Among the radiation we usually see, sunlight has the greatest energy. Much more radiation than computers and mobile phones.
Second, radiation is not a derogatory term, but a name for energy. The spread of heat, almost all substances have radiation, such as a piece of clothing, sunlight also has radiation. Not all radiation is harmful to human body, only radiation exceeding sunlight is harmful to human body, such as nuclear radiation.
Third, infrared rays are just one of many invisible rays in the sun.
Fourth, the wavelength of infrared can also be divided into near wave, medium wave and short wave, and medical use can also achieve the effect on various parts of the body through the wavelength of infrared.
So if the technology introduced by relevant people is true, faceID itself will not cause harm to human body. But if you watch your mobile phone for a long time, it is harmful to your health, such as staying up late, blurred vision, eye fatigue, cervical vertebrae, lumbar vertebrae and cervical vertebrae, which will cause a series of symptoms, such as cervical hypertension and so on.
First of all, let's learn what the so-called "iPhoneX Face ID function" means. In layman's terms, it is to brush your face. Didn't we pay by fingerprint before? Now just take an Apple X and you can brush your face to pay.
What is the principle? It is said that the new generation of Apple X uses the "original camera" and projects 30,000 invisible light spots on your face through the "dot matrix projector" (so complicated). Anyway, the screen prompts you to turn your head, you turn it, and the sensor can record the five senses and then draw your unique face.
What are the ways to play?
1. You can buy it at buy buy more conveniently and pay by brushing your face.
2. You can take photos with your mobile phone to generate a 3D model of your head, and you can easily customize your own 3D printed dolls. Pretty cool.
3. You can also simulate the real-time expression of your face, make a dynamic expression package and share it with your friends.
Apple officials said that their new Apple 3D sensor can recognize faces in low light, even if the phone is flat and at various strange angles. And just take a look at the phone and you can unlock it immediately. The phone is ringing, but you can't answer it. Just look at the screen and mute immediately. How obedient!
Well, the problem is coming with such a tall game. Since it can be unlocked at a glance, it means that Face ID must catch people's eyes. Is it necessary to scan the eyeball? Infrared radiation is harmful to the eyeball, and both iris and lens may become victims! However, Apple did not respond to this.
Alas, even if there are many questions that the official doesn't answer, it can't stop the fanaticism of Apple fans. Let's sigh!
After long-term exposure, I found that the acne on my face was gone.