Military Technology

The sky was bright, and after a night of drizzle, the streets had been washed. A group of security department agents and policemen dressed in police uniforms and plainclothes were searching this small street carefully.

Xu Hui, who hadn't slept all night, had bloodshot eyes. At this moment, he was leaning on the side of the car, looking at these busy people, his thoughts did not know where he went.

"Team Xu, eat early, I bought hot steamed buns and soy milk that were just out of the pot." A young female agent walked over with a bag and greeted him.

"Okay, thank you, I'm really hungry." Xu Hui, who was interrupted, took the bun soy milk from the female agent and smiled: "Give it to the big guy as soon as possible. They all cushion their stomachs."

"Team Xu, have you found it?" A young agent walked over quickly with a bag of evidence, "The cleaner found a fruit phone in a trash can not far away. The phone is intact, but it's turned off. Status. The phone number has been verified. This is the phone that Chen Mingcheng lost after talking to Viper.

The cleaner saw that we were looking for something, so he took the phone to us. "

Xu Hui looked at the old fruit phone in the evidence bag, and couldn't help asking, "Have you collected fingerprints?"

"It was collected, but there is nothing else on it except the fingerprints of the cleaner, and it was wiped clean." The agent said helplessly.

Xu Hui nodded and said, "It is Chen Mingcheng's method and handed over to the technical department for cracking. I want to know the content in the shortest time.

In addition, I collected surveillance video from the neighborhood, and learned from the interrogation of the enemy spy code-named "Viper" that his last call was to Chen Mingcheng.

In other words, Chen Mingcheng has been remotely directing the entire operation around here. If this is the case, then we can certainly find clues from these monitoring.

In addition to the surveillance on the street, you have to mobilize the entrances of some shopping malls, as well as convenience stores, movie theaters, coffee shops, fast food restaurants, etc. that are open 24 hours a day. This night, it was still raining, and he couldn't stay on the street. He should settle in which store nearby.

Although several years have passed, Chen Mingcheng's appearance has changed, but his walking posture, body proportions, and skull cannot be changed. I can use these new types of data to compare among these people in the surveillance, which is Chen Mingcheng. If you have the power to reach the sky, you can't escape my golden eyes. "

Everyone has their own special characteristics or imprints, such as fingerprints, iris, lip lines, etc. In fact, there are many physical features or physical ID cards that can represent our personal identity features? For example, we often use facial recognition.

Facial recognition is generally divided into 2D plane and 3D three-dimensional facial recognition. First, the first 2D plane is the image recognition technology used? Compare the captured facial image with the stored original facial photo? The degree of coincidence meets the standard extremely. approved.

However, this method has a major drawback, that is, it is impossible to identify which are real people? Which are photos, maybe using a photo? You can fool this 2D facial recognition technology.

And the 3D stereo facial recognition technology? It records the 3D contour data information of the human face, and then compares it with the stored 3D facial contour data, so that it can avoid someone holding the photo and want to get confused. .

But this kind of 3D facial recognition is also flawed, that is, if someone holds the person’s 3D face mask? Or is it a 3D head model? You can fool the 3D facial recognition system and pass the verification.

So many 3D facial recognition technologies now include infrared sensing and eye-catching technologies. When performing 3D facial recognition, the system will also sense the temperature of the face being recognized and the movement of the eyeball at the same time to verify whether it is a real person, not a mask. After these conditions are met at the same time? Can the verification pass.

Everyone's face is our best proof of physical identity, and it is unique. But after some cosmetic surgery? These faces can be replicated. But no matter how you copy it, it is only the surface? It is difficult to change the outline of the skull structure.

So we have seen many movies and TV shows and programs in which police forensic doctors can use the victim’s skull to recover and obtain pictures of the victim before his death.

The current artificial intelligence system can generate 3D skull contour data based on the photos of the suspects, and then inversely calculate them. Then, based on them, in the huge monitoring screen, compare the faces of these people in the monitoring screen. Features, and the generated 3D skull profile data, and then compare them to find the relevant suspects.

In this way, even if the suspect is disguised again, it will be difficult to escape the glaring eyes of the system.

Of course, single condition filtering is easy to make mistakes and the accuracy is limited. This requires adding some search conditions to the artificial intelligence system.

Just like we search for information in a search engine, the more conditions we give, the more accurate the search will be.

Although each of us is walking in the same way, there is a slight difference in the walking posture. This is a habit that we usually form imperceptibly, and it is difficult for ourselves to notice.

The artificial intelligence system can detect these subtle changes and recognize the person.

In addition to walking posture, there are also human body proportions.

In fine arts, the proportions of the human body are divided into three halves, three courts and five eyes. In other words, the body ratio of a normal Asian is seven heads, which is relatively standard.

And some painters exaggerate this proportion appropriately in order to reflect the figure of a person. For example, when drawing a model, it usually expands to nine heads, so the drawn model is exceptionally tall and moving.

In real life, in fact, everyone's body proportions are different. Some people are fatter, some are thinner, some have longer legs, and some have round heads.

Such a condition may be difficult to single-screen, but when added up, it is also a very valuable clue condition. Combined with the other conditions above, you can basically lock the identity of the suspect~www.readwn.com~ This is the convenience and assistance that artificial intelligence technology brings to the detection of modern cases, and our country's application in the field of artificial intelligence technology It has always been at the advanced level in the world.

"With so many monitoring images, I am afraid that it will take a lot of time to collect and compare them. Is it too late? Seeing that the mission failed, Chen Mingcheng might have escaped long ago." The young agent frowned and worried.

No, Xu Hui shook his head very firmly and said: "At present, the stations, airports and main entrances and exits in Anxi City have set up cards for personnel identification verification. Chen Mingcheng wants to be more cautious. He is not sure whether we have him. Before his identity, he did not dare to take the risk out of town

I am sure that he should still be in the city now, and is already trying to hide his identity. "

"How to hide, or continue to pretend to be a woman?" The young agent laughed.

"Ha ha ha ha, maybe it is really possible. But this time no matter how hidden he is, I will arrest him and bring him to justice." Xu Hui smiled and said with firm eyes.