6 p.m.

The Office of the Third Criminal Investigation Group of the Seremban Branch.

Officer Wang stood next to the water dispenser and poured a large cup of hot water with a grunt, then patted his stomach 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 finished sorting out the case, Officer Wang came over and patted Gu Chen on the shoulder: "Gu Chen, the case just now was tried well, and the efficiency is getting higher and higher." ”

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

Although this case, the clues collected from the beginning to the end are all sorted out by themselves.

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

"I just said that this female nurse was not well-intentioned. Lu Weiwei ate her potato chips and said: "I began to ask her to confess honestly, she didn't admit it at first, but we laid out the facts with him and got clues, and she immediately said that it was Director Liu and Dean Zou who did it, and she was just forced, and she didn't say that she was greedy from beginning to end." ”

"Who will say that they are content after discovering a shortcut to make money?" Officer Wang returned to his seat, took out potato chips from Lu Weiwei's hand and threw them into his mouth, and sighed: "In the end, it is greed, can you be coerced if you are not greedy? ”

Gu Chen patted Lu Weiwei on the shoulder with the sorted information, and after Lu Weiwei took it, she passed it to Officer Wang.

After the four people were brought back to the police station in the afternoon, relevant interrogations were conducted.

Due to Dean Zou's early explanation, the other three were powerless to refute.

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

Gu Chen took advantage of dinner to finish sorting out all the data 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 slight progress in various skills.

However, compared with the previous excellent skills, perhaps the progress in these abilities is not much different in the eyes of outsiders.

However, 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.

Officer Wang read it roughly, nodded and said, "Yes, I don't have to worry about the file you made, and the future case summary will be written according to this standard." ”

"Huh. Lu Weiwei on the side sneered: "I said Lao Wang, Gu Chen just gave you a meaning, are you still serious? Do you still need to evaluate what Gu Chen summarized? Zhao Ju has already used him as a 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 and stubbornly defended his dignity.

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

"Then hurry up, pack up your things, let's go to the cafeteria. "Officer Wang only found out at this moment, and his stomach is really hungry.

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

Lu Weiwei and Officer Wang looked at each other, and the two nodded one after another.

"That's okay, Senior Brother Gu, let's help you cook first, you remember to come to us." Lu Weiwei said.

"No problem. Gu Chen smiled and stepped up to sort out the information on the table.

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

In my head, the system's beautiful mechanical female voice came again.

"New achievement: heartfelt thanks from the victims. ”

"The victim's heartfelt thanks are the greatest compliment to the police. ”

"Bonus Item: One Intermediate Treasure Box. ”

"Please claim the reward items as soon as possible. ”

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

"This is an intermediate treasure box, much better than the functional drinks that always burst out of the primary treasure box. ”

Thinking of this, Gu Chen looked at the front and back, left and right.

In the empty three sets of offices at the moment, only one sits here.

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

Soon, the mechanical female voice replied again.

"Acquisition of face recognition skills (elementary): 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, and said in his heart that this is the direction that cutting-edge technology has been researching!

Could the system also provide this convenience?

You know, these technologies may not be mature in the field of science and technology, and the system uses a set of immature skills as reward items, will it be a bit perfunctory?

"It sounds quite high-end, but are these skills reliable?" Gu Chen hesitated for a moment and asked, "You said that this face recognition skill includes four sub-skills, but what are the functions of these skills in actual use?"

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

"You have acquired the Face Recognition Skill (Elementary), the Face Image Acquisition Skill, and you can capture different face images through the binocular camera that you have blessed. ”

"The blessed binocular camera?!" Gu Chen said he didn't understand.

"Yes, you can use the face image acquisition skill in addition to the basic skill of visual cutting. ”

"I see. Gu Chen suddenly realized in an instant, and said: "It is to use the primary skill of visual cutting, blink twice at the recognized target, and you can obtain the face image acquisition skill in face recognition, right?"

"Yes, but you must first turn on face recognition to obtain the face image acquisition skill. ”

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

"Understood. Gu Chen's reaction speed was still very fast, and he asked again: "What are the targets?"

The mechanical female voice replied: "For example: static images, moving images, different positions, different expressions, etc., can be well captured. ”

"When the other party is within the collection range, the face image acquisition skill will automatically search for and take the face image of the other party. ”

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

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

"Face images contain a wide range of modal features, 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 achieve face detection. ”

"I see. Gu Chen was still quite interested in such skills.

If you want to do a good job, you must first sharpen your tools.

In order to make good use of these skills, the necessary knowledge is still necessary.

Face recognition skills include face image acquisition and detection.

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

The system seems to have a mind-reading technique, and what Gu Chen thinks in his heart, the system can quickly react.

Before Gu Chen could ask, the beautiful mechanical female voice explained again:

"Face image preprocessing: Image preprocessing for faces is based on the face detection results, processing the image and finally serving the process of feature extraction. ”

"The original image you obtain, due to the limitations of various conditions and random interference, often cannot be used directly, and it must be preprocessed 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, etc., do you understand?"

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

"No problem, I've memorized it. Gu Chen said.

"Very good. The mechanical female voice affirmed Gu Chen, and then moved on 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 carried out for some features of the face, and face feature extraction, also known as face representation, is the process of modeling the features of the face. ”

"The methods of facial feature extraction can be summarized into two categories: one is a representation method based on knowledge, and the other is a representation method based on algebraic features or statistical learning, can you remember?"

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

Quickly nodded: "No problem, I can remember." ”

"Very good, let's move on to the next stage. After affirming Gu Chen's ability, the mechanical female voice continued to enter the lower-level stage skill explanation.

"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, and the matching result is output when the similarity exceeds this threshold. ”

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

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

"Understood. Gu Chen was already in a cold sweat at this moment.

The influx of a large amount of data was constantly digested and fused in Gu Chen's mind, making Gu Chen feel that the new skills seemed to be a bit powerful.

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

If the face recognition skill is sub-competent, it feels that it covers a wide range, and if it can be fully utilized, it seems that it can break the boundaries of science and technology and walk in 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 them faster and better.

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

"Hey, Senior Sister Lu!"

"Senior 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 right away. Gu Chen hurriedly looked at his watch, only to find that fifteen minutes had passed.

"Are you still in the office?" Lu Weiwei on the other end of the phone was shocked, and said: "I said Senior Brother Gu, people are iron and rice are steel, don't learn from those old comrades, eat irregularly, if you have stomach problems, I won't agree." ”

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

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

"Okay, I'll wait for you in the cafeteria with Lao Wang. ”

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

Gu Chen took a deep breath, took out a tissue from the table, and after staining it with sweat on his forehead, he hugged the paper into a ball, and threw it into the trash can at the door with a shooting posture.

"Boom! boom!"

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

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

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

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

"Could it be that the mobile base station box was damaged by lightning? Otherwise, this 4G network ...... How could it be so ridiculously slow?"

Thinking about it, it shouldn't be a deliberate drop in the network speed for 5G paving, the recent network speed of the mobile network can be called a turtle speed, Gu Chen couldn't help but complain.

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

The rainwater that flows down from the eaves of the houses collects into small streams in the streets.

The whole sky was dark and heavy, as if it was about to collapse, and it was estimated that Wu Dalang would not be able to withstand it.

The wind chases the rain, the rain chases the wind, the wind and the rain unite to chase the dark clouds in the sky, and the whole heaven and earth are in the rain.

There are very few pedestrians on the streets......

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

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

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

The two of them each carried a suitcase, but they were still standing 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 could be regarded as saying hello.

"Are you two here to do something?" Gu Chen suddenly asked.

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

But these two people are not on the list of police officers of the Furong Branch at all, and Gu Chen is naturally very angry.

"Yes, we are here to do business at the Seremban branch. One of them, a tall, thin man with dark skin, was the first to answer in Mandarin with a Nanyue accent.

"Are you outsiders?" asked Gu Chen with a smile.

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

Looking back at the office building, the man of medium stature smiled and said, "Maybe we're late, and the Furong branch is already off work." ”

"You are also policemen?" Gu Chen asked again.

"Yes, we are all Pengcheng policemen, and we came to Jiangnan City this time. The tall, thin man said.

"Welcome to Gangnam City. Gu Chen took the initiative to step forward and shook hands with the two of them: "I am Gu Chen from the Third Criminal Investigation Group of the Furong Branch of Jiangnan City. ”

"My name is Gao Xu. The tall and thin man smiled, pointed to the man of medium stature next to him and said, "His name is Liao Kai, and I am partners." ”

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

The two smiled, then shook their heads.

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

"You're in luck. Gu Chen handed over the umbrellas that were originally going to be given to Lu Weiwei and Officer Wang to Gao Xu and Liao Kai respectively: "Take it, one for each person." ”

"It seems that you are really lucky?" Liao Kai smiled and said, "Then thank you, Gu Chen." ”

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

It didn't take long for Gu Chen, Gao Xu and Liao Kai to shake their umbrellas at the door of the cafeteria.

Lu Weiwei found Gu Chen from afar, and beckoned to Gu Chen: "Senior Brother Gu, come quickly, the food is almost cold." ”

"Just come. Gu Chen took Gao Xu and Liao Kai, first came to Officer Wang and Lu Weiwei is side and introduced: "Senior Brother Wang, Senior Sister Lu, this is a colleague from Pengcheng, come to our Furong Police Station. ”

"Hello, my name is Gao Xu. ”

"My name is Liao Kai. ”

Both of them didn't seem to like to talk much, so they took the initiative to step forward and shake hands with Officer Wang and Lu Weiwei.

"My name is Lu Weiwei, and he ...... You just call him Lao Wang, we and Gu Chen are from the third criminal investigation team. Lu Weiwei contracted all the right to speak.

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

Officer Wang finished speaking and left.

It didn't take long for the two plates to be served on the dining table, and several people sat together and chatted a few words.

"Where are you staying tonight?" Gu Chen took out the napkin handed by Lu Weiwei and wiped the corners of his mouth.

"I'm not sure yet, I'll 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 accommodate the tolerance of brother units, and you will live in the police dormitory tonight." ”

"yes. Lu Weiwei also said: "Although it is not as comfortable as the hotels outside, there is an atmosphere, and the people who live there are all policemen, and everyone can chat if they have nothing to do, play cards and the like, and it will not be boring." ”

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

"Okay, there's a few of them. Gao Xu said with a smile.

Officer Wang waved his hand: "It's all my own brothers, what's polite? Aren't you here to do something? Stay here today, and I'll take you to find the relevant docking tomorrow." ”

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

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

......