Looking at the system shown by Yang Yan, Dai Guoxun was not thinking about the search for relatives they were doing, but his eyelids slightly sinking, and his thoughts turned to his old career.

After a while, after Yang Yan finished his part of the display, Dai Guoxun asked, "Xiao Yang, can I understand this thing like this? It can constantly 'catch' 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 smiled, "Teacher Dai, the face interception of the video is only a small function. The core of this system is the data analysis of the face, and the more complex matching algorithm..."

“…”

Yang Yan spoke very seriously, but he forgot that these terms were too complicated for a retired old detective. Dai Guoxun stared at him and thought for a long time but couldn't figure it out.

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

"Can you do this?" Old Master Dai patted Yang Yan's shoulder with some excitement, "We can call all cameras, install the system you mentioned, and then compare them with the photos of our illegal and criminal information resource query system. Can all criminals not be invisible?"

For the police, the difficult cases to solve only account for a small part. Most of the cases that cannot be closed are because the suspect fled and then pursued him and brought him to justice. It has been a long time since then!

This consumes a lot of manpower and material resources and police force!

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 to the police!

However, Yang Yan shook his head with a wry smile: "Teacher Dai, this is just in an ideal state. At the beginning, I also wanted to tell Teacher Dai that you said, using surveillance video resources to track down the whereabouts of criminals who abducted the children, so that we can locate him, arrest him, and rescue the child as quickly as possible! But later, I found that it is too difficult to achieve with our current basic conditions!"

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

"Even if you just chase a person in a city, there are so many cameras in the entire city, and in the surveillance screen transmitted, you don't know how many millions of face photos can be intercepted in a day. To complete so many photos and the faces of the people we are going to hunt, even if you borrow a supercomputer developed by the state, it may take some time to calculate!"

Yang Yan talked jokingly: "What if we compare so many photos in the database of the illegal and criminal information resource query system that Teacher Dai said? If we expand the scope and find people in so many cameras across the country... I think a supercomputer may not be enough! What's more, supercomputer is such an important strategic resource, I think it's not our turn to use it. Using ordinary computers and servers can't complete such a large amount of computing, and it's even more impossible to send real-time arrest notifications!"

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

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

When Yang Yan saw Mr. Dai thinking, he was a little at a loss. He didn't know whether to continue turning around and facing Mr. Dai, waiting for his instructions, or to turn around, connect to the provincial department's servers with a computer, and install his own operating system.

It seems that I turn my head and do this kind of action is not very polite.

But what Yang Yan said was the truth. He originally naively wanted to develop a black technology similar to the "Sky Eye" system. As he told him, he could immediately hunt down human traffickers.

But reality really doesn't allow it. Later, Yang Yan also figured it out that what he did was actually based on normal fantasy. It could be filmed in movies. Such a useful system that could leave criminals nowhere to hide, and there is no reason to put it there waiting for Yang Yan to study it!

Someone must have done similar projects. Perhaps their technology, such as image processing technology, and face matching algorithms, are not as good as Yang Yan's, but the direction they do should be similar to Yang Yan's, but they are limited to the current equipment and calculation amount, and the pictures in the movie cannot be realized in the end!

This is why Yang Yan adjusted his direction and used a photo recognition matching system with relatively small calculations.

However, just as Yang Yan sighed secretly, Xia Yu, who was listening to their conversation on the sofa, suddenly spoke: "Teacher Dai, Yang Yan, can we not do it so complicated? It is too difficult to retrieve surveillance video information from the whole country. It is better to investigate the information first, determine the approximate location of the suspect, and then use the nearby surveillance video and this system to find someone? Will this be easier to find?"

This idea is relatively novel, and Yang Yan's eyes lit up, and he smiled and said, "This is OK. A small number of photos match, just like what we are doing now. As long as the provincial department provides support for server resources, there will be no problem!"

"There is another way. We can choose places where there are relatively dense crowds but are convenient for arrest, such as concerts and football matches, where there are many audiences. Use the surveillance videos of their entrances and exits to check to see if there are any fugitives mixed in!" Xia Yu said more and more excitedly, and many ideas poured into her head.

"It's okay, but, shouldn't the fugitive hide? Why do you still watch concerts and football games?" Yang Yan asked in confusion.

"Xiao Yang, you don't know anything about this!" Yang Lin had been listening just now, and now he couldn't help laughing, "Many fugitives hiding in Tibet, thinking that after the gust of wind, they changed their names and lived a normal life. They did not dare to take planes, trains, and other things, but they were not affected! After hearing some cases, some fugitives went to watch movies and performances in a swagger, but were recognized by the police on duty and arrested them."

"Xiao Xia is worthy of being a favorite student of Director Dai, and the opinions he gives are very valuable!" Yang Lin said appreciatively, "When you go back, Xiao Xia, you can sort out your ideas and send them to me for a report."

"After all, they are young people, with a flexible head. Xia Yu and Yang Yan, you two may have to make great contributions again!" Dai Guoxun was in a good mood and said with a smile.

Luoluo looked at the adults who were having a lot of fun chatting. She couldn't understand what the adults said, but she just felt that these grandpas and uncles seemed to be praising their father and mother!

Dad is very awesome!

The little girl blinked her big eyes and felt happy for her father. However, after a while, the little girl's eyes still fell on the oranges on the coffee table in front of her.

The director gave her just now, but the little girl didn't want it. Now the little girl who feels bored to speak is more interested in these oranges.
Chapter completed!