Chapter 141: Storage

The next day.

The weather is high and the air is crisp.

Feed and grow strong.

Petting the dog.

During working hours, Jiang Yuan went to the office area of ​​the Economic Investigation Brigade.

Wei Zhenguo arrived in about time and met him at the door.

"You're so early." Wei Zhenguo said cheerfully.

He was quite willing to help Jiang Yuan. He even felt that it was rare to be able to help Jiang Yuan, so he was extra active.

Jiang Yuan smiled like a student and said, "Leave a good impression on others."

"Actually, no need. Besides, we are also helping him." Wei Zhenguo said before leading Jiang Yuan inside, smiling all the way and greeting everyone.

In the office area in the morning, there were police officers coming and going, all of them staring at Wei Zhenguo, and from time to time someone would ask questions.

Fortunately, the economic investigation police officer came out to greet him, which saved at least two groups of questioning time.

"Let me introduce, this is Li Suigong. The deputy captain of our Third Economic Investigation Squadron." Wei Zhenguo said, mocking himself to adjust the atmosphere: "Just like me."

Li Suigong smiled: "What else can you call me like deputy captain? Forensic doctor Jiang needs no introduction. I've heard his name for a long time..."

"Let's just watch the eucalyptus." Wei Zhenguo laughed twice, feeling that it was not suitable for small talk.

Li Suigong then led the two of them into the office, and while turning on the computer, he said: "You should know the basic situation of Eucalyptus. We have just made a record of the victim. Now we are waiting for the news from the Criminal Division Center in Changyang. ”

"Do you use fingerprints to confirm your identity?" Jiang Yuan asked.

"Generally not. Because we can't find anyone." Li Suigong explained: "This kind of contact-based economic case is different from criminal cases, that is, the criminal suspect can be contacted in the early stage. It depends on what method is used to identify him. identity of."

Jiang Yuan nodded as he listened. It was true. In criminal cases, we usually don’t know who did it and we have to find someone to come out.

Economic cases are different. In fact, you know someone has done it, but you just want to confirm someone's true identity.

"We usually identify people through DNA and photos. DNA is more accurate and faster. For photos, facial recognition is used, and then through the portrait card, we can often find the person directly."

When Li Suigong said this, he looked at Jiang Yuan and said, "Now that the DNA and photos have been sent to Changyang City, they are still stuck and have not been processed. We cannot continue here until they are processed."

When Jiang Yuan heard about photos and facial recognition, he immediately became energetic. Z asked: "How should you process your photos?"

"As long as it meets the requirements for facial recognition."

“What are the requirements for facial recognition?”

"It means clear facial features, like a mug shot, are the best. Of course, if the general conditions are not met, the matching rate will be lower. The clearer the facial features, the higher the matching rate."

"Where does it match?"

"The main thing is the face bayonet." Li Suigong pointed out the window and said: "Just like the vehicle bayonet, many cities now, especially high-speed rail stations and airports, have face bayonet. When the time comes, use our It will be easier to find the suspect by comparing the photos in hand with the photos taken by face mounts in various places.”

In fact, it is a static version of face recognition.

It is not easy to identify the people inside when the crowd is moving.

But if you take a photo of everyone passing by and compare the photos with each other, wouldn’t it be simple?

Facial recognition and portrait mount are such a simplified idea.

Jiang Yuan basically understood it and said, "Can you show me the photos you have here?"

Li Suigong hesitated for a moment and said, "Just take a look. This photo was also taken by your Criminal Division Squadron. They are all surveillance photos."

With that said, Li Suigong found a few photos from the computer folder.

Jiang Yuan looked at the photos on the screen. They were all photos taken by high-definition cameras. The image clarity was quite good. If the human eye was used as the basis for distinguishing, it would not be a problem to see the face clearly.

"Isn't this clear enough?" Jiang Yuan asked without understanding.

"Facial recognition mainly looks at the face. Moreover, if we do it clearly here, the probability of recognition will be higher. Otherwise, it will be thrown into the blacklist and there will be no news for a long time, and this clue will be useless. "What Li Suigong said was very practical.

Jiang Yuan nodded slowly. The eucalyptus seeds were not big to begin with. If they were sent to other provinces and cities for storage, they could only wait quietly. It has to be recognized by the system and confirmed manually before it will be reported here.

Momo Huhu, it’s difficult for everyone.

If a false alarm really breaks out, I will be the only one who is tired.

Therefore, we must do this first. The definition of your own face is high enough, making comparison easy.

Jiang Yuan thought of fingerprints.

Fingerprint comparison, on the one hand, is the fingerprint of the suspect, and on the other hand, the accuracy of the fingerprint collection is required. The level of fingerprints collected in Ningtai County has never been high. We really need to think about this aspect in the future.

Jiang Yuan's divergent thoughts stopped as soon as they dispersed, and his eyes focused on the picture in front of him again.

"You just said that the pictures were all sent to Changyang City? Can you show me what the finished product they made looks like?" Jiang Yuan asked again.

He could actually see piles of folders with different names on hand, but it was obviously not good to do so without the owner's permission.

Li Suigong glanced at Wei Zhenguo with a wry smile, and then said: "Your request is still a set one. Okay. I happen to have an old criminal here, and the criminal later made the news. I'll look for it for you."

He took the mouse again, picked it up, and played a new picture.

It was indeed a headshot.

"Was it made by the Provincial Department's Image Detective Team?" Jiang Yuan asked as he looked at it.

"Yes. This is a very good one, but the case is relatively large, so we specifically told the other party and strengthened it twice." Li Suigong sighed.

Ningtai County does not have its own image detection team, so it can only ask for help, and this part is often the most emotionally exhausting part.

Jiang Yuan listened and nodded.

With the comparison, he understood.

What the image detectives do is simple, just extract the suspect's head in the surveillance picture or photo and put it separately.

If the resolution of the head image meets the requirements, this can be used directly. In most cases, this is obviously not the case.

Therefore, the second step of processing is to enhance the image, remove the noise, and repair the parts that can be repaired.

Jiang Yuan has also seen the level of the provincial department's image detection, which is LV2 dissatisfaction.

As mentioned before, those who are really good at image processing and face detection are both prestigious and profitable.

"I'll do this picture." Jiang Yuan had been ready to take over the job, and just now he just wanted to see what the specific requirements were.

Li Suigong looked at Jiang Yuan with some doubt, and then at Wei Zhenguo.

Wei Zhenguo said calmly, "Second-class merit."

"Well, how do I give you the photo?" Li Suigong didn't say anything about the "second-class merit."

There are actually quite a few criminal police officers who have second-class merits. With the configuration of the Ningtai County Bureau, one can take turns every one or two years.

However, it is quite rare for the criminal science and technology squadron, or technicians, to get second-class merits.

Li Suigong is not sure where Jiang Yuan is good at, but since he dares to take over, he doesn't mind copying and pasting.

Jiang Yuan looked at the picture and said, "You put it on the intranet, and I'll do it directly on my mobile phone."

"On the mobile phone?" Li Suigong was surprised.

"I'll use my phone to operate the computer, wait a minute." Jiang Yuan had installed the relevant software earlier.

And just enhancing the clarity of the face is not a high requirement.

Ordinary people can actually operate it after a few days of training.

For example, in the provincial department's image detection team, not everyone can reach the level 2 level. What ordinary team members do is actually to operate the software and work step by step.

Jiang Yuan sat on the side and completed the image enhancement in a few minutes.

He didn't use any special methods, basically the software did it fully automatically.

The image was put back into the intranet and opened on the computer. It was indeed several levels clearer.

"You did... you did a really good job." Li Suigong's eyes lit up.

"Can this be sent over?" Jiang Yuan asked.

"Of course, the clarity is enough, quite enough." Li Suigong answered repeatedly, and sat down and said: "Wait a minute, I'll send the picture to the blacklist library."

Jiang Yuan and Wei Zhenguo sat on the side and waited.

Li Suigong was worried that the two would get bored, so he said while working: "The current blacklist database includes high-risk personnel, special personnel, and those handed in by different units. It is also quite complicated, but the efficiency is OK..."

"Will the suspect be alerted as long as he passes the facial checkpoint?" Jiang Yuan asked.

"That's about it. Those who pass the checkpoint will be photographed, and a reminder will be given after the comparison. Then we will manually identify them again, and then we can report them." Li Suigong said: "Generally, as long as the initial location is determined, it is still relatively easy to find the person later."

"That means you still need to go there later."

"Not necessarily. For example, the facial checkpoint at Changyang Airport alerted the police, and then confirmed that the person was on the plane, then the police at the destination will cooperate. Of course, we usually send people ourselves." Li Suigong smiled.

Wei Zhenguo smiled in understanding. Economic investigation, what is caught is money.

Li Suigong quickly got it done, clapped his hands, and said: "Forensic doctor Jiang, um, I don't know if you are busy here."

"No, you tell me." Jiang Yuan knew what he meant.

"Well, I'm a little sorry, but I still have a lot of pictures here, can you help me deal with them?" Li Suigong is now a person who believes in "Second Class Merit".

Jiang Yuan agreed immediately and said, "If I need to deal with a large number of them, I have to go back to the office."

"No problem, no problem. I will upload them to the intranet now?"

"Okay." Jiang Yuan agreed and went back with Wei Zhenguo.

Li Suigong saw the two out attentively and said, "I will notify you if there is any news about Anzi!"