Looking at the system shown by Yang Yan, Dai Guoxun was not thinking about what they were currently doing to find relatives, but his eyelids sank slightly, and his thoughts turned to his old business.

After a while, when Yang Yan finished his part of the show, Dai Guoxun asked out loud: "Xiao Yang, you thing, can I understand it like this, it can continue, you said 'grabbing' the face information in the surveillance video, and then match it with our photo library, if you find that it is the same person, the computer will notify us?"

"That's right!" Yang Yan nodded to Dai Guoxun and said with a smile, "Teacher Dai, the face capture of the video is just a small function of it, and the core of this system is the data analysis of faces, as well as more complex matching algorithms......"

“……”

Yang Yan said it seriously, but he forgot that these terms were too complicated for a retired old criminal policeman, and Dai Guoxun stared and thought about it for a long time before he could figure it out.

But it doesn't matter, Dai Guoxun has already got the answer to the question he wants to ask.

"Can that be like this?" Old Man Dai patted Yang Yan's shoulder with some excitement, "We can call up all the cameras, install the system you mentioned, and then compare it with the photos of our illegal and criminal information resource query system, can we make it impossible for all criminals to hide?"

For the police, the cases that are difficult to solve only account for a small part, and more often, most of the cases that cannot be closed are because the suspect has fled, and it is a long time before he is pursued and brought to justice!

Among them, a lot of manpower and material resources were spent, as well as police power!

Dai Guoxun felt that if there was a "thing" that could automatically help them discover the whereabouts of the suspect, it would undoubtedly be a great help for the police!

However, Yang Yan shook his head with a wry smile: "Teacher Dai, this only exists in an ideal state. At the beginning, I also wanted to tell Mr. Dai that I used surveillance video resources to track down the whereabouts of the criminal who abducted and sold the child, so that we could locate him, arrest him, and rescue the child as quickly as possible!

The problem is not in the surveillance footage, but in the comparison with thousands of photos of wanted criminals!

"Even if you just track down a person in a city, so many cameras in the whole city, and in the surveillance footage transmitted, you don't know how many billions of face photos can be intercepted in a day, and to complete the face comparison of so many photos and the person we want to hunt, even if it is borrowed from a supercomputer developed by the state, it may take a little time to calculate!"

Yang Yan said eloquently: "Then what if we compare so many photos with the database of the illegal and criminal information resource query system that you mentioned Mr. Dai? What if we expand the scope and find people in so many cameras across the country...... I don't think a single supercomputer will be enough! What's more, I don't think we can use such an important strategic resource as a supercomputer, and we can't use ordinary computers and servers to complete such a large amount of calculations, let alone send arrest notices in real time!"

Dai Guoxun still couldn't understand Yang Yan's terms, but this time he roughly understood what Yang Yan meant, that is, it was impossible to fulfill his requirements!

The old man was a little disappointed, he frowned tightly, grabbed his knee with one hand, and gently drew the fingers of the other hand on his leg, and the whole person fell into deep thought.

Yang Yan saw that Old Man Dai was thinking, he was a little overwhelmed, and he didn't know whether to continue to turn around and face Old Man Dai and wait for his instructions, or turn his head and use the computer to connect to the server of the provincial department and install his own operating system.

It seems that he turned his head away, which is not very polite.

But what Yang Yan said was the truth, and he was naïve to want to engage in a black technology similar to the "Sky Eye" system, as he said, he could immediately hunt down human traffickers.

But reality really doesn't allow it, and later Yang Yan also figured it out, what he did was actually only based on normal fantasies, which could be shot in other people's movies, and such an easy-to-use system that could make criminals have nowhere to hide, there was no reason to wait for Yang Yan to study it!

There must have been people who have done similar projects, maybe their technology, such as image processing technology and face matching algorithms, is not as good as Yang Yan's, but what they do should be similar to Yang Yan's, but it is limited to the current equipment and the amount of calculation, and the picture in the movie cannot be realized after all!

This is also why, Yang Yan adjusted the direction and made a photo recognition and matching system with relatively little calculation.

However, just as Yang Yan was secretly sighing, Xia Yu, who was listening to their conversation on the sofa, suddenly spoke: "Teacher Dai, Yang Yan, can we not make it so complicated? It is too difficult to retrieve the surveillance video information from all over the country, why don't we investigate the information first, determine the approximate location of the suspect, and then use the nearby surveillance video and this system to find someone?"

This idea is relatively novel, Yang Yan's eyes also lit up, and he said with a smile: "This is okay, a small number of photos match, just like what we are doing now, as long as the provincial department gives support to server resources, then there is no problem!"

"There is another way, we can choose places with a relatively dense flow of people, but it is convenient to arrest, such as concerts, ball games, and other places with many audiences, and check the surveillance video of their entrances and exits to see if there are any fugitives mixed in!" Xia Yu became more and more energetic at the moment, and many thoughts poured into her head.

"That's no problem, it's just that the fugitives shouldn't be hiding, how can they still watch concerts and football games?" Yang Yan asked suspiciously.

"Xiao Yang, you don't know anything about this!" Yang Lin had been listening just now, and now he couldn't help but laugh, "After many fugitives hid in Tibet, they thought that after that gust of wind, they would change their names and surnames and live a normal life, except for not daring to take a plane or train, other things, but they were not affected! I have heard some cases, and some fugitives just swaggered to watch movies and performances, but they were recognized and arrested by the people's police on duty. ”

"Xiao Xia is worthy of being Dai Ju's proud protégé, and the opinions he puts forward are very valuable!" Yang Lin said appreciatively, "Go back to Xiao Xia, you can sort out your thoughts, make a report and send it to me." ”

"After all, it's a young man with a flexible head, Xia Yu and Yang Yan, maybe you two will make great contributions again!" Dai Guoxun was in a good mood and said with a smile.

Luoluo looked at the adults who were chatting happily, she couldn't understand what the adults said, but she faintly felt that these grandfathers and uncles seemed to be praising their fathers and mothers!

Daddy is amazing!

The little girl blinked wide-eyed, happy for her father. However, after a while, the little girl's eyes fell on the oranges on the coffee table in front of her.

The head of the kindergarten gave it to her just now, but the little girl didn't want it yet. Now the little girl, who feels that the adults are bored talking, is interested in these oranges again.

This seems to be delicious!