The next day, Zhang Qiu went to the company to sit down for a while, collected the number of attendance software, and went out. He contacted Lieutenant Colonel Ho and came to the military's information center.

"You have nothing to do but go to the Three Treasures Palace, say, find me something!" Lieutenant Colonel He said.

Zhang Qiu said: "Looking for you to test a software." ”

The monitoring system written by Zhang Qiu really needs to be tested in practice to know how effective it is, whether its functions are applicable, and whether there is anything that needs to be improved.

However, he will definitely not be able to complete this test on his own, unless he has an entire or entire floor of office buildings, has enough cameras, and has enough obedient employees to complete this test.

He didn't have this condition, but he thought of a person, Lieutenant Colonel Ho. Lieutenant Colonel Ho is a member of the military and fully owns the test conditions.

There are enough cameras, enough advanced equipment, enough powerful computers, and enough obedient people.

Maybe when you come to the military, you can also ask Zhang Qiu to add some equipment excuses, and it is not necessary to improve this software.

"What you make must be a good thing. What software? Aren't you afraid of me leaking secrets? Colonel He said.

Zhang Qiu smiled and said, "I believe in your character. ”

As he spoke, he found a computer, inserted it into a USB flash drive, and copied the monitoring system installation package.

"This is a security monitoring system that I customized for the police, adding dynamic recognition technology, which can identify movements through guò, find some suspicious people, and focus on them. and save surveillance footage. Zhang Qiu said.

"If you can really realize the function you mentioned, it can greatly improve the efficiency of monitoring! Wherever something goes wrong, you can find out as soon as possible. Lieutenant Colonel He said. It's just that you're not sure how practical this software is, and you haven't gotten the real-hand numbers first-hand, so you're coming to me for testing, right?

"I'm looking for you, just to borrow your monitoring system here and your soldiers to use it." Zhang Qiu said, "I hope you can authorize the interface of the surveillance camera to me." ”

"Okay." Lieutenant Colonel He said, "The two of us are brothers who have been born and died together. If I don't help you, who will help you? "The two of them once planned to destroy the Dacheng Gang, and it makes sense to say that they were born and died together.

"What is needed. Just mention. As long as it's within my purview, I'll try to satisfy you. Lieutenant Colonel He continued.

"Then you're welcome." Zhang Qiu said.

Zhang Qiu installed the software twice, once on a small supercomputing server, and once on an ordinary PC. Then test the number of cameras that both can take over separately.

Ordinary PC. After taking over two hundred cameras. It suddenly crashed, and it was clear that two hundred cameras had overloaded it.

The small supercomputer, on the other hand, can easily accept thousands of cameras, which is already all the cameras that Lieutenant Colonel He can authorize.

Then Zhang Qiu investigated the amount of computing consumed to take over a thousand cameras, and then estimated how powerful the hundreds of thousands of cameras would be. In the end, it is estimated that if you take over 300,000 cameras, it will take about 9 Tflops of computing, and this small supercomputer is fully competent.

But Zhang Qiu still felt that it was too resource-intensive. Then some real-time improvements and debugging were carried out, and the computing effort required for 300,000 cameras dropped to about 7 Tflops. At this time, Zhang Qiu was slightly satisfied.

"Okay! You do this system. It's very resource-saving! Lieutenant Colonel He said, "I want to ask you to customize a system for me." ”

"That's because I've adjusted my strategy to only monitor suspicious footage. Under this strategy, if no one makes suspiciously dangerous movements, the camera is not functioning. Even if the footage is recorded, it will not be saved. As for whether the police will use this minimal strategy, it is not certain. Zhang Qiu said.

Lieutenant Colonel He nodded and said, "That's right, sometimes some ordinary shots may also be evidence." ”

"Well, so my system has also opened the normal mode, all the videos are saved for a certain time, and the important videos are saved permanently." Zhang Qiudao.

"It's a pretty useful setting." Lieutenant Colonel He said, "What else do you want me to cooperate with next?" ”

"You ask a few soldiers, in a place where there are cameras, to fight each other." Zhang Qiu said, "It's best to call two groups of people, one for real fights and one for fake fights." ”

"What's the matter?" Lieutenant Colonel He asked.

"I'll see if the software can tell the difference between a real fight and a fake one." Zhang Qiudao.

"You're too godly, aren't you? Is it a real fight, or a fake fight, even people may not be able to tell the difference, relying on software? Colonel He said.

"Just try it." Zhang Qiu said.

So Lieutenant Colonel He went to arrange people, and sure enough, two sets were arranged, and they fought in front of the camera. One group is just tentatively doing some feints, and the other group is really fighting.

Suddenly, a magnified picture appeared on the surveillance screen, which was the picture of the group of people who really fought.

"Is it really separated?" Lieutenant Colonel He was a little unconvinced, and gave another order and conducted many tests. In the end, all the fights that did a feint were ignored by the monitoring system, and all the fights that did were close-up.

"How?" Lieutenant Colonel He was surprised inexplicably, this software is more powerful than anyone else.

"Speed!" Zhang Qiu said, "When there is malice and there is no malice, the speed of people is different. Therefore, it is easy to distinguish between real and fake fights by guò speed. ”

"I understand the reason, but what about the specific values? How do you know how much speed is fake and how much speed is real? Colonel He said.

Zhang Qiu was silent, and Lieutenant Colonel He's words really hit the nail on the head.

The principle of this software is very simple, everyone understands it, but the key is to collect the number of jù and set the red line, which is a difficult problem. As Lieutenant Colonel asked, the speed and strength of punches are different between real fights and fakes, but what about the specific speed value?

How fast is a real fight, and how slow is a fake fight? And everyone's speed is different, some people are fast, some people are slow, some people have a lot of manpower, and some people have little manpower.

These things need to be considered when making software. And these numbers need a lot of real yàn to collect, and it is impossible to come up with them by tapping their heads.

Zhang Qiu naturally knew that the reason why he was able to make the software so smoothly was entirely because the system rewarded a number of action recognition engines.

If there was no such number, Zhang Qiu would only be blind.

The specific value of this number jù library cannot be cracked by Zhang Qiu, and naturally there is no way to know. Therefore, he can only use guò real yàn to verify the specific utility of this number jù library.

After a pause, Zhang Qiucai said, "This is a trade secret." Anyway, you know I've made this kind of software. Let's continue to test, collect more numbers, assume more possibilities, and I also want to see if the limits of this software are really practical. (To be continued......)

PS: Before I knew it, it was the beginning of the month again, and I was going to take full attendance next month, so I had to save some manuscripts, otherwise I would have no bottom in my heart. There is still a day, and how many chapters can be saved is a few chapters.