Why does mosaic hit my eyes?

The reason why the mosaic is applied to the eyes is that the eyes are the most critical feature part, because the eyes themselves are changeable, not only the difference in pupil color, but also the shape of the eyes, and the most critical look. It is precisely because the eyes have obvious diverse information and can remain relatively stable that people choose to use their eyes as a criterion when judging others. And once the eyes are covered, it will be difficult to recognize the person. This is also the reason why mosaic is applied to the eyes.

Mosaic has brought great convenience (perhaps inconvenience of course) to our lives since its invention. Whether you are a financial expert on Wall Street in New York or an African native, you have all seen mosaics.

Mosaic is so widely used. I wonder if you have ever noticed where mosaic is often applied?

If you think about it carefully, you will find that mosaics basically hit two parts:

sensitive parts. This usually involves sexual aspects, and if it is not mosaic, it will become an FBI warning.

Eye. This is a more common mosaic coding method, which is to hit people’s faces, to be precise, on their eyes. We can understand if it hits the face. After all, the human face is the main distinguishing feature of the human body. It is basically difficult to identify a specific individual without the face. But why choose to hit the eyes on the face instead of other places?

Actually, this makes sense.

Eyes are the key features of the face

Our face has several structures, from top to bottom they are the forehead, eyes, nose, lips and face. Among these structures, the eyes are the most critical characteristic parts, because the eyes themselves are changeable, not only the difference in pupil color, but also the shape of the eyes, and the most critical look. Just like what people say, "Give you a look and experience it yourself." The movements of the eyes can convey many thoughts of the human body, such as joy and sadness, such as command information, etc. Therefore, some people say that the eyes are the windows to the soul.

Eye size remains relatively constant

I believe you must have a deep memory of the big eyes of children, right? However, as age increases, the eyes seem to get smaller and smaller. If you still have "a pair of beautiful big eyes" in adulthood, it will really be a great appearance advantage. But this observation is actually wrong. Because the eye is a very strange organ of our human body, that is, its size changes little. The eyeball of a baby is 16 mm - 17 mm, and in adults it is only 22.5 mm - 23 mm. After the age of 13, it has completely grown and remains the same. The change is only about one-third. On the other hand, other parts of our body, such as height , increased several times from infant to adult. Therefore, a child's eyes appear to be particularly large compared to a child's young body, but appear small compared to an adult's eyes.

It is precisely because the eyes have obvious diverse information and can maintain relative stability that people choose to use their eyes as a criterion when judging others. Once the eyes are covered, it will be difficult for us to recognize the person. This is also the reason why mosaic is applied to the eyes.

Of course, the same principle applies to celebrities who wear sunglasses when they go out. They cover their eyes and are basically unrecognizable to other people except hardcore fans.

I believe after reading this, you basically understand why mosaics hit your face, right?

Is mosaic related to iris recognition

But there must be curious babies who will think of another important content, which is iris recognition. In various movies and TV dramas, we often see people putting their eyes close to a device , and then you can turn on the switch or unlock the related device. This is iris recognition.

What is iris recognition?

The appearance of human eyes is composed of three parts: sclera, iris and pupil. The iris is an annular area located between the sclera and the pupil, accounting for approximately 65% ​​of the total area of ​​the eye. The iris contains rich biological characteristic information and remains unchanged throughout life after being fixed in childhood. It can be said to be a person's lifelong identity. certificate. Because of this, iris is used as an important indicator of human body biometric identification.

First, compared with DNA identification, which is difficult to sample and slow to identify, iris identification has many advantages such as speed and accuracy, and has become an important means of individual identification.

So, is mosaic related to iris recognition?

the answer is negative.

We can deny this with a simple example, that is, if a person closes his eyes, can we recognize him? The answer is yes.

For example, for a film and television star, even if he closes his eyes, I believe most people who follow dramas can recognize this person.

But if the eyes of a star are mosaic, it will be difficult to identify them.

It can be seen that human face recognition relies more on eye information rather than the content of the eyeballs.

The content comes to this, we are going to make a simple summary:

The reason why mosaic is applied to the eyes is because the human eyes are the most important part of the human face that has a distinguishing function. Part, blurring this part will make it difficult for people to identify each other. However, this recognition is mainly about the general part of the eye, not the eyeball.

Of course, it must be pointed out that this recognition refers to the recognition of others by humans. If it is replaced by a machine, it will be a different matter. After all, for a machine, judging a person's eyes is an important step. Once a person closes his or her eyes, the machine will easily be blinded.

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