novelraw Chapter 488: Darkness Under the Lamp
Chapter 488: Darkness Under the Lamp
The similarity is 83%!
This is the highest similarity given by the face matching of the SkyEye system.
Face recognition is based on the matching of different points on the face.
A general face recognition system needs to determine different points such as the upper jaw, left and right faces, and lower jaw at the same time, in order to accurately perform face recognition.
Of course, this is not to say that face recognition must cooperate with multiple points. In theory, the same parts of different faces must be different.
For example, the forehead, no two people have exactly the same forehead, so theoretically speaking, the face recognition system can analyze and judge the portrait as long as the forehead is compared.
With Huaguo's scientific and technological means, it is naturally possible to realize this kind of small-scale face recognition comparison.
However, different levels of face recognition comparison need to collect different points.
The more small-area face comparison is done, the more points need to be collected.
For example, normally speaking, the face recognition system only needs to collect the forehead, left and right faces, and jaw, and there are 5 points in the person for comparison.
Then the number of points that the system compares faces is 5.
However, if only the right face can provide comparison, then the number of points that the system needs to collect needs to reach a certain number on the right face.
For example, there are also 5, but what about other facial information?
The forehead also needs to collect 5 points, the left face also needs 5 points, and other parts also need 5 points.
Then there may be as many as 25 comparison points for a face.
In this way, although the accuracy of the comparison is improved, the computing time of the system is increased.
An increase in system operation time means an increase in comparison time.
Therefore, considering the needs of comparison accuracy and comparison time, the comparison points of the SkyEye system are 5.
The reduction of alignment points means that the alignment accuracy will be reduced.
At present, there are three proportion results about Liang Feng given by the Sky Eye system.
One of them is 28%,
Another one is 36%, and the last one is 83%.
Generally speaking, if the comparison accuracy is lower than the probability of 50%, the ratio results are likely to be inaccurate.
Therefore, Huang Guojun directly targeted the comparison portrait at the entrance of the expressway in the northern suburbs of Hulu City.
This comparison portrait is a photo taken by a surveillance camera at a toll station at an expressway intersection.
The man with 83% similarity with Liang Fengcong was sitting in the co-pilot wearing a mask.
License plate number, Liao P98321!
Coordinate the Panshi detective team to call up the relevant monitoring on the highway, share the information of the Sky Eye system, and find out where this man went!
Hulu City Beijiao Expressway Intersection is the expressway from Hulu City to Pan City.
The other party's starting direction should be heading for the market.
market...
It is the hometown of Liang Feng's girlfriend He Rui.
Also, find out the registration information of the owner of this Liao P98321 car, and find the driver as soon as possible!
After the detective team on the market got the news, they cooperated very quickly.
However, it is not easy to find someone in the city's Sky Eye system.
Huang Guojun was able to quickly find Liang Feng in the Sky Eye system in Hulu City because Huang Guojun knew that Liang Feng left in the self-built housing area.
Therefore, as long as the monitoring records near the self-built housing area were retrieved on the night of the 12th, Liang Feng could naturally be found relatively quickly.
However, if you don't know where Liang Feng is, you can use the Sky Eye system to compare directly, and the time it takes is uncertain.
Of course, there should be no problem in finding it, but this is the time to find it. It may be found in a second, or it may not be found in ten days and a half months.
Because in this case, the SkyEye system has to compare the portraits among all the surveillance video data in the entire urban area.
This is actually no different from finding a needle in a haystack, except that the comparison speed of the system is faster, but the comparison data is not as simple as hundreds of thousands or millions of people.
Instead, hundreds of thousands of people and millions of people compare all the data recorded by the SkyEye system monitoring within a period of time.
This amount of data is simply an astronomical figure.
Fortunately, however, the owner information of Liao P98321 was quickly found.
Wang Chang, the owner's name is Wang Chang, a black driver.
The morning of July 13?
I did receive a long-distance job that day, and there were two people, a man and a woman, both of whom were wearing masks, but I knew that woman was pretty from the shape of her face.
In the interrogation room, Wang Chang answered Huang Guojun's questions truthfully.
Where did you pick them up and where did they go that day?
Because only four or five days had passed, Wang Chang did not run many long distances, and Liang Feng sold a lot of money, so Wang Chang was quite impressed.
I picked them up on Friendship Road. The two of them were holding two suitcases and said they were going to market.
The man offered to give 400 yuan. I thought the price was good, so I pulled them along and went to the market on the northern suburban expressway.
Where did they go after they arrived in the market, and where did they get off?
As long as they know where they got off the car, the Panshi detective team can locate Liang Feng where he first appeared in Panshi. In this way, it will not be much easier to compare and query through the Sky Eye system.
Of course, it is still not certain that that person is Liang Feng. After all, the similarity is relatively high. Whether it is Liang Feng is still uncertain.
They didn't go to the market!
Um?
Huang Guojun was slightly taken aback, what's the matter?
Didn't you say that two people are going to the market?
This fucking kung fu has changed again?
Didn't you just say that they went to the market?
Yes, but they changed places halfway.
Huang Guojun: ...
I'm afraid this Wang Chang is not a joke.
Wang Chang, the two people you dragged on the morning of the 13th are murder suspects!
Murder... Suspects?
The corner of Wang Chang's mouth twitched, his face turned green from the fright of Huang Guojun: Kill...Kill?
Wang Chang, the two murder suspects disappeared after taking your car on the morning of July 13th. I hope you can fully cooperate with us and help us find these two people.
Yes Yes Yes!
Wang Chang wiped the sweat from his forehead: I will definitely cooperate, don't worry, I will definitely cooperate, and I will not hide anything!
Those two people were indeed going to the market that day. That's what they said at the beginning. I dragged them to the toll gate of the Beijiao Expressway.
But after passing the toll intersection, the man in the passenger seat who was wearing a mask answered a phone call.
I didn't hear what he said on the phone, and the man didn't say much. He hung up the phone after a couple of hums, and then he told me he couldn't go to the market.
Because we couldn't make a U-turn on the expressway, we could only drive forward. We took the expressway at the Wangjiazhuang exit at the next exit.
It turned out that on the morning of July 13, Wang Chang and the others did not go to Panshi as agreed, but drove out of the expressway at the exit of Wangjiazhuang Expressway and turned back to Hulushi.
The man asked me to drive the car to Xinlian Market, and finally gave me 100 yuan, and the two of them got off the car at the south gate of Xinlian Market.
Xinlian Market?
Huang Guojun didn't expect that the person suspected of being Liang Feng didn't go to the market, but came under the lights, turned back from the highway and returned to Hulu City to Xinlian Market.
Xinlian Market is located in the eastern suburb of Hulu City. It is the largest vegetable and fruit wholesale base in Hulu City and belongs to the first-level wholesale market.
This market has a history of more than 30 years, and the surrounding area is full of self-built houses. The mobility of people in the area is very high, and the residents are also very dense.
If Liang Feng really hid here, it would be very difficult to find and arrest him.