Why do mosaic usually hit the eyes?

Mosaic has been widely used in our lives since the invention. We often use it to blur the information that you don't want to be exposed, but I don't know if you have paid attention to it. When we want to hidden the real appearance of someone What part of the mosaic is often hit? If you think about it, you will find that mosaics are usually hit on TV and in news. It is easy for us to understand it on the face. After all, the human face is the main characteristic of the human body. It is basically difficult to distinguish the specific individuals when removing the face. But why choose to hit the face position on the face instead of other positions? In fact, this has a certain sense. Eyes are several structures on our facial features. From top to bottom, we are forehead, eyes, nose, lips and faces. In these structures, the eyes are the most critical features, because the eyes itself is changing, not only the difference in pupil color, but also the shape of the eyes and the most critical eyes. Just as everyone said "give you a look to experience it yourself", the movement of the eyes can convey the many ideas of the human body, such as joy and sadness, such as instruction information, so some people say that the eyes are the windows of the soul. The size of the eyes is relatively constant. I believe you must remember the big eyes of children? However, as I get older, it seems that the eyes are getting smaller and smaller, but it is not. Because the eyes are a very strange organ in our human body, that is, its size changes less. The baby's eyeballs are 16 mm-17 mm, and the adult is only 22.5 mm -23 mm. After 13 years of age, the development has remained unchanged, and the change is only about one-third. On the other hand, our body, such as height, has increased several times from infants to adults. Therefore, children's eyes are particularly large compared to children's bodies, and the eyes of adults will look small. It is precisely because the eyes have obvious diverse information and can maintain relatively stable stability, so people choose to use their eyes as a criterion for judgment when judging others. And once we cover our eyes, it is difficult for us to recognize this person, which is also the reason why mosaic hitting on the eyes. Of course, when those stars go out, it is the same as wearing sunglasses, covering their eyes, and it is not easy to recognize. I believe that when you see this, you basically understand why the Mosaic can hit the eyes? Is mosaic and iris recognition? However, some people must think of another important content, that is, iris recognition. In various film and television dramas, people often watch people close their eyes close to a device before turning on or unlock related devices. Irish recognition. What is iris recognition? The appearance of human eyes consists of three parts: scleral, iris and pupils. The iris is a ring -shaped area between the sclera and pupils, accounting for about 65%of the total area of ​​the eyes. The iris contains rich biological characteristics information, and it is maintained after being fixed at an early age. certificate. Because of this, the iris is one of the important indicators of human biometrics. Compared with DNA recognition, the difficulty of identification is slower, and the iris recognition has many advantages such as rapid and accuracy, which has become an important means for individual identification. So, is mosaic related to iris recognition? the answer is negative. We can deny this with a simple example. If a person closes his eyes alone, can we recognize him? The answer is yes. For example, a film and television star, even if he closed his eyes, believes that most people who chase can recognize this person. But if you put mosaics on the eyes of the stars, it is difficult to recognize. It can be seen that the recognition of human faces is more dependent on the information of the eye, not the content of the eye. When the content is said here, we have to make a simple little summary: the reason why the mosaic is hit on the eyes is because the human eyes are an important part of the human face. other side. However, this recognition is mainly the overall part of the eyes, not the eye.

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Source of this article: Xinhuanet, Popular Science China

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