I am a super cop

Chapter 275 Face Recognition

6 pm.

Office of the Criminal Investigation Group [-] of the Furong Sub-bureau.

Police officer Wang stood by the water dispenser, and after pouring a large cup of hot water, he patted his stomach to express his satisfaction and said, "I understand that after working in a mental hospital for a long time, people's spirits are extremely broken."

Seeing that Gu Chen had sorted out the case, Police Officer Wang came over and patted Gu Chen on the shoulder: "Gu Chen, the case just now went well, and the efficiency is getting higher and higher."

"The main reason is that Dean Zou has already explained everything that needs to be explained, so the psychological defense of these people... was quickly breached, and it took no effort at all." Gu Chen was still as humble as ever.

Although in this case, the collection of clues from the beginning to the end was all sorted out by myself.

However, Police Officer Wang and Lu Weiwei also gave necessary support, as well as colleagues in the dispatch room. Everyone contributed their own strength to this case.

"I just said that this female nurse has no good intentions." Lu Weiwei ate her potato chips and said, "I started to ask her to tell the truth, but she refused to admit it at first, but when we presented the facts to him and got clues, she immediately said it was Liu What the director and Dean Zou did, I was just forced to do it, and I didn't say it was my greed from the beginning to the end."

"Who would say they are content after discovering a shortcut to make money?" Officer Wang returned to his seat, took potato chips from Lu Weiwei's hand and threw them into his mouth, tsk tsk said: "In the end, it's greed, no Can greed be coerced by others? It’s not easy for these two women to imprison patients with this group of people.”

Gu Chen patted Lu Weiwei on the shoulder of the compiled information, and after Lu Weiwei took it, passed it to Police Officer Wang.

After everyone brought the four back to the police station in the afternoon, they conducted related interrogations.

Due to Dean Zou's advance explanation, the other three were unable to refute.

In the face of various facts and evidence, everyone pleaded guilty, and the interrogation can be said to have gone very smoothly.

Before dinner, Gu Chen sorted out all the files.

From receiving the report in the afternoon to closing the case before dinner, the efficiency is so high that it flies.

Gu Chen felt more and more that he had made some big progress in various skills.

However, compared with the excellent skills before, perhaps these improvements in abilities are not much different in the eyes of outsiders.

But it is very practical to put it into the handling of the case.

"Senior Brother Wang, do you think it's okay?" Gu Chen asked.

Police officer Wang roughly read it, nodded and said: "Yes, I can rest assured of the dossier you made, and the summary of the case in the future will be written according to this standard."

"Hehe." Lu Weiwei on the side smiled and said, "I said, Old Wang, Gu Chen just showed you something, do you still take it seriously? Does Gu Chen still need you to evaluate what Gu Chen summed up? Director Zhao has already judged him Be the benchmark."

"This is called learning from each other, making up for mistakes, and don't talk nonsense if you don't understand." Officer Wang waved his hand, stubbornly defending his dignity.

Lu Weiwei looked down at her watch, touched her growling stomach and said, "It's past six o'clock, if you don't go to the cafeteria, you can only eat leftovers. It is estimated that Master Nie will feed the food from the cafeteria later. That husky."

"Then hurry up, pack your things, and let's go to the cafeteria quickly." Officer Wang realized at this moment that he was really hungry.

"You guys go first, I'll be right there." Gu Chen casually sorted out the documents on his desk.

Lu Weiwei and Police Officer Wang looked at each other, and they nodded one after another.

"That's all right, Junior Brother Gu, let's prepare food for you first, remember to come and find us." Lu Weiwei said.

"No problem." Gu Chen smiled and hurriedly sorted out the materials on the table.

Not long after Police Officer Wang and Lu Weiwei left the office, Gu Chen had finished tidying up and was about to get up to go to the cafeteria.

In my mind, the beautiful mechanical female voice of the system came again.

"New Achievement: Victim's Heartfelt Appreciation."

"The victim's sincere gratitude is the greatest compliment to the police."

"Reward item: an intermediate treasure box."

"Please collect the reward items as soon as possible."

Gu Chen froze for a moment, but soon realized that a small treasure box suddenly appeared in the visual interface in front of him.

"This is an intermediate treasure box, much better than the energy drinks that always pop out of the elementary treasure box."

Thinking of this, Gu Chen looked around.

In the three groups of empty offices at the moment, I am the only one sitting here alone.

Gu Chen couldn't wait to click to receive, and clicked to open again.

Soon, the mechanical female voice replied again.

"Acquire face recognition skills (primary): face recognition skills mainly include face image acquisition and detection, face image preprocessing, face image feature extraction, and matching and recognition."

"Face recognition?" Gu Chen was stunned for a moment, thinking that this is the direction that cutting-edge technology has been researching for a long time!

Could the system also provide convenience in this regard?

You know, these technologies are not necessarily mature in the field of science and technology, so the system uses a set of immature skills as rewards, isn't it a bit perfunctory?

"Sounds very high-end, but are these skills reliable?" Gu Chen hesitated, and asked: "You said that the face recognition skill includes four sub-skills, but what are these skills in actual use? Does it work?"

As soon as the words fell, the beautiful mechanical female voice echoed in my mind again.

"You have acquired face recognition skills (primary), face image collection skills, and different face images can be collected through the binocular camera lens you have blessed."

"Blessed binocular cameras?!" Gu Chen said he didn't understand.

"Yes, the face image acquisition skill can be used on the basis of the primary skill of visual clipping."

"I understand." Gu Chen suddenly realized, and said: "It is to use the basic visual cutting skills to blink twice at the recognized target, and you can get the facial image acquisition skills in face recognition, right?"

"Yes, but you must first turn on face recognition, and the face image collection skills can be obtained."

The beautiful mechanical female voice is still very mechanical...

"Understood." Gu Chen reacted quickly, and asked again: "Then who are the targets?"

The mechanical female voice replied: "For example, static images, dynamic images, different positions, different expressions, etc., can all be well collected."

"When the other party is within the collection and shooting range, the face image acquisition skill will automatically search for and capture the other party's face image."

"What about face detection?" Gu Chen asked again.

"Face detection: In practice, it is mainly used for preprocessing of face recognition, that is, to accurately mark the position and size of the face in the image."

"The pattern features contained in the face image are very rich, such as histogram features, color features, template features, structural features, and Haar features."

"Face detection is to pick out the useful information and use these features to realize face detection."

"So it's like this." Gu Chen is still quite interested in such skills.

If a workman wants to be good, he must first sharpen his weapon.

In order to use these skills well, the necessary understanding is still necessary.

Since face recognition technology includes face image acquisition and detection.

But there are also face image preprocessing, face image feature extraction, and matching and recognition that must be understood.

The system seems to have the ability to read minds, and the system can quickly react to what Gu Chen thinks.

Before Gu Chen could ask, the melodious mechanical female voice explained again:
"Face image preprocessing: The image preprocessing of the face is based on the face detection results, processing the image and finally serving the feature extraction process."

"The original image you get, due to various conditions and random interference, often cannot be used directly. It must be processed in the early stage of image processing, such as grayscale correction and noise filtering."

"For face images, the preprocessing process mainly includes light compensation, grayscale transformation, histogram equalization, normalization, geometric correction, filtering, and sharpening of face images. Can you understand these?"

Gu Chen has a professional memory, these data are in his mind, and he can quickly remember them firmly.

"No problem, I have already remembered." Gu Chen said.

"Very good." The mechanical female voice affirmed Gu Chen, and then proceeded to the next stage.

"Face image feature extraction: The features that can be used by face recognition skills are usually divided into visual features, pixel statistical features, face image transformation coefficient features, face image algebraic features, etc."

"Face feature extraction is performed on certain features of the face. Face feature extraction, also known as face representation, is the process of modeling the features of the face."

"The methods of face feature extraction can be summed up into two categories: one is knowledge-based representation methods, and the other is representation methods based on algebraic features or statistical learning. Can you remember?"

Wherever the mechanical female voice said, Gu Chen had already remembered it.

Nod quickly: "No problem, I can remember."

"Very good, let's go to the next stage." After affirming Gu Chen's ability, the mechanical female voice continued to explain the skills in the lower stage.

"Face image matching and recognition: The feature data of the extracted face image is searched and matched with the feature template stored in the database. By setting a threshold, when the similarity exceeds this threshold, the matching result is output. "

"Face recognition is to compare the face features to be recognized with the obtained face feature templates, and judge the identity information of the faces according to the degree of similarity."

"This process is further divided into two categories: one is confirmation, which is a one-to-one image comparison process, and the other is identification, which is a one-to-many image matching and comparison process, do you understand?"

"Understood." Gu Chen was already sweating coldly.

The influx of a large amount of data was continuously digested and integrated in Gu Chen's mind, which made Gu Chen feel that the new skills seemed a bit powerful.

Although I understand the basic theory, how to use it seems to be the biggest difficulty in front of me.

The sub-skills of face recognition skills seem to cover a wide range. If they can be fully utilized, it seems that they can break the boundaries of technology and walk at the forefront of the times?
Gu Chen closed his eyes and let these skill data brew in his mind, so that he could digest and absorb it faster and better.

At this moment, Gu Chen's cell phone on the table rang, and it was Lu Weiwei calling.

"Hey, Senior Sister Lu!"

"Junior Brother Gu, where are you? Why haven't you arrived yet?" Lu Weiwei on the other end of the phone was a little anxious.

"I'm still in the office, I'll be here soon." Gu Chen quickly checked his watch, only to realize that 15 minutes had passed.

"Are you still in the office?" Lu Weiwei on the other end of the phone expressed shock and said, "I said, Junior Brother Gu, people are like iron and rice are steel. Don't learn from those old comrades. They eat irregularly. If you suffer from stomach problems, I won't agree." .”

After thinking about it, Lu Weiwei said again: "Is the work at hand not finished yet? How about I help you bring dinner back?"

"No need, Senior Sister Lu, I'll come over right now."

"Okay, Lao Wang and I will wait for you in the cafeteria."

After a few words of teasing, the two hung up the phone.

Gu Chen took a deep breath, pulled out a paper towel from the table, stained his forehead with sweat, rolled the paper into a ball, and threw it into the trash can at the door with precision in a shooting posture.

"Boom! Boom!"

At this moment, thunder suddenly sounded outside the window, and the sky gradually dimmed.

Only then did Gu Chen realize that the sky outside the window kept flickering.

Suddenly, a dazzling electric light illuminated the sky and the earth.

Gu Chen even clearly saw the opposite building, and even the iron tripod on the opposite building, and the network base station boxes of China Mobile and China Telecom, which were deployed in different directions.

"Could it be that the mobile base station box was struck by lightning? Otherwise, how could this 4G network be so slow?"

Thinking about it, it shouldn’t be intentionally lowering the network speed to pave the way for 5G, but the recent network speed of the mobile network can be called slow speed, Gu Chen couldn’t help but complain.

The thunder did not stop, and there was another flash of lightning, and the heavy rain continued to fall like beads with a broken thread.

The rainwater flowing down from the eaves converges into streams on the street.

The whole sky was dark, as if it was about to collapse, and Wu Dalang probably couldn't stand it.

The wind chases the rain, the rain chases the wind, the wind and the rain join forces to chase the dark clouds in the sky, and the whole world is in the rain.

There are very few pedestrians on the street...

Gu Chen picked up the police uniform jacket hanging on the seat, and put it on.

Then in the office, he took off three umbrellas and prepared to run desperately towards the cafeteria.

But downstairs in the office, two men in casual clothes quickly caught Gu Chen's attention.

The two carried a suitcase each, but they still stood there, looking like they were waiting for the rain to stop.

Seeing that Gu Chen was also looking at him, the two men just smiled and nodded, which was regarded as a greeting.

"Are you two here for business?" Gu Chen suddenly asked.

Since the personnel list of the Furong branch has already been determined, Gu Chen has a general understanding of all the new and old colleagues on the list.

But these two people are not in the list of police officers of the Furong branch at all, so Gu Chen is naturally very embarrassed.

"Yes, we are here to handle business in Furong Branch." One of the dark-skinned, tall and thin men answered first in Mandarin with a southern Cantonese accent.

"Are you foreigners?" Gu Chen asked him with a smile.

The two looked at each other, and another man of medium build also said: "Yes, we are from Pengcheng, and this time we came to Jiangnan City specifically to handle some business."

Looking back at the office building, the man of medium build smiled and said, "Maybe we are late, the Furong Branch has already closed get off work."

"Are you also the police?" Gu Chen asked again.

"Yes, we are all Pengcheng police officers, and this time we are here on business in Jiangnan City." The tall and thin man said.

"Welcome to Jiangnan City." Gu Chen took the initiative to move forward and shook hands with the two of them, "I'm Gu Chen from the Criminal Investigation Team [-] of the Furong Branch of Jiangnan City."

"My name is Gao Xu." The tall and thin man smiled, pointed to the middle-built man beside him and said, "His name is Liao Kai, and we are partners."

"Welcome, have you had dinner yet?" Gu Chen asked.

The two smiled, then shook their heads.

Gao Xu said: "When we first came here, it rained heavily suddenly. I saw many people running to the cafeteria, but we didn't bring umbrellas."

"Then you're in luck." Gu Chen handed the umbrellas originally intended for Lu Weiwei and Police Officer Wang to Gao Xu and Liao Kai respectively: "Take it, one for each."

"It seems really lucky?" Liao Kai smiled and said, "Thank you, Gu Chen."

"You're welcome, I'm going to the cafeteria just now, let's go there together."

Not long after, Gu Chen, Gao Xu and Liao Kai were shaking umbrellas at the entrance of the cafeteria.

Lu Weiwei spotted Gu Chen from a long distance away, and waved to Gu Chen, "Junior Brother Gu, hurry up, the food is getting cold."

"Come here." Gu Chen took Gao Xu and Liao Kai, and first came to Police Officer Wang and Lu Weiwei and introduced: "Senior Brother Wang, Senior Sister Lu, these are colleagues from Pengcheng, and they are here on business in Furong Branch."

"Hi, my name is Gao Xu."

"My name is Liao Kai."

Neither of them seemed to like to talk much, so they stepped forward and shook hands with Police Officer Wang and Lu Weiwei.

"My name is Lu Weiwei. He... you can just call him Old Wang. We and Gu Chen are both in the third criminal investigation team." Lu Weiwei took over all the right to speak.

"You haven't eaten yet, have you?" Officer Wang quickly stood up and said, "I'll get you two meals, otherwise Master Nie in the cafeteria will definitely bring them to feed the huskies."

Officer Wang left after speaking.

Not long after, two dinner plates were placed on the dining table, and several people sat together and chatted for a while.

"Where are you staying tonight?" Gu Chen took out the napkin that Lu Weiwei handed over, and wiped the corner of his mouth.

"It's not confirmed yet, let's find a hotel nearby and stay first." Gao Xu said.

Gu Chen said with a smile: "No, part of the police dormitory of our Furong branch is specially used to receive the accommodation when the brother units are on business. You will live in the police dormitory tonight."

"That's right." Lu Weiwei also said, "Although it's not as comfortable as staying in a hotel outside, it has an atmosphere. The people living there are all policemen, and everyone can chat if they have nothing to do. Playing cards and the like won't be boring. what."

Gao Xu and Liao Kai looked at each other, then nodded.

"That's all right, there are just a few of you." Gao Xu said with a smile.

Officer Wang waved his hand: "They are all my brothers, why are you being polite? Aren't you here to handle business? Stay here today, and tomorrow I will take you to find relevant connections."

After thinking about it, Police Officer Wang suddenly asked again: "Oh, by the way, I don't know what you are mainly doing here in Jiangnan City this time?"

Gao Xu smiled and said, "Look for the trafficked children."

……

(End of this chapter)