Chapter 1323

The sun is high.

In the Anwan fingerprint battle combat room (smoking room), the air conditioner is pulling like pulmonary chronic obstruction.

Wei Shiyan was sitting in the chair sweating profusely, looking at the screen blankly, and the draft paper in front of him was scribbled with calculation formulas, and there were some notes like HE, WT, etc., but they were all broken and out of shape.

Li Zemin pretended to pass by, looked at Wei Shiyan's expression, and a inexplicably comfortable expression appeared on his face.

If looking at Jiang Yuan's work is like sitting on a volcano looking at lava, Wei Shiyan is a piece of ice the size of a muggle, which is comfortable to cool down when close, and comfortable to put in the room to cool down.

"Uncle Master, ask you a question." Wei Shiyan suddenly raised his head and shouted at Li Zemin.

Li Zemin's smile flashed away, replaced by caution: "I have a case piled up here... What do you want to ask?"

He just couldn't match fingerprints, but he understood the second generation who likes police like Wei Shiyan.

These people ask questions, not looking for trouble, or they really have problems, and he Li Zemin, doesn't want to answer any of them.

Sure enough, Wei Shiyan didn't stop at all, and spat out mathematics like a spider spirit: "In a model containing multiple convolutional layers, each pixel point of the hyperspectral image contains multiple band information, so the size of the input layer is HxWxBH... The activation function adopts ReLU (rectifiedlinearunit)..."

Pop.

Li Zemin hit the lighter and lit a cigarette: "This question is indeed worth deep thinking. You should consider it carefully first. If you still don't understand, come to me, or I will introduce you to a professor..."

Then, Li Zemin walked away quickly with a normal face.

When Jiang Yuan woke up and came to the conference room, it was already afternoon.

On the wall of the conference room, the 8 groups sent to various places had almost arrived, and one after another began to feedback the newly brushed fingerprints.

Those suspects living in big cities were found fastest by direct flights; followed by cities with high-speed rail access. The most feared is that someone really returned to the countryside, forcing the criminal police of the group to rent a car and run wildly, for fear that they would not arrive, and a phone call would be made to the other party's mobile phone first.

Jiang Yuan is not in a hurry. After each group finds the suspect, they will take the suspect to a nearby police station to "protect" them. They don't enter the interrogation room, just sit in the consultation room, with tea and water.

Among these 8 people, 5 have criminal records, so they are naturally obedient. Others are also sensible. Under the persuasion of 4 foreign criminal police and many local police, they all followed obediently.

Speaking of which, among these 8 people, at least 7 are innocent. It is nothing more than that the fingerprints look a bit like criminals. Therefore, the criminal police who came from thousands of miles away are also very restrained. After taking fingerprints, they are all in a chat state.

Jiang Yuan's temporary 1 skill is still cooling down, but there is no need to use it.

LV6 fingerprint analysis technique, when checking one-on-one, is not that difficult.

The only thing that needs attention is the higher requirement for extracting fingerprints, but this is not difficult, because the owner of the fingerprint is sitting in the consultation room of each police station. If Jiang Yuan thinks the fingerprint is not clear, it is very convenient to take it again.

Li Zemin put down the work in his hand again, stood behind Jiang Yuan and ate melons.

Zhu Huanguang was particularly disdainful of Li Zemin's attitude. A good fingerprint expert didn't do his own work, but looked at others doing fingerprints...

Thinking about it, Zhu Huanguang also couldn't help but raise his head, his eyes crossed his screen and fell on Jiang Yuan's screen.

Jiang Yuan has several screens in front of him, and doesn't restrict everyone from watching. On it are dense black and white fingerprint lines.

Among them, the two largest screens simultaneously display some high-definition details of a fingerprint.

The three-level features of fingerprints have been applied 20 years ago, and those who do fingerprints are very looking forward to being able to spread in the country.

However, popularizing a new technology is really a very difficult thing.

Just like the concept of fingerprints has been proposed for more than a hundred years, the one that really forces criminals to wear gloves is the last 20 years.

Correspondingly, the three-level features of fingerprints have infinite temptation for fingerprint experts. It means that maybe only a very small piece of incomplete fingerprint is needed, and there is a possibility of matching criminal suspects.

What is the requirement of 8 feature points, which is very difficult for the second-level features of fingerprints, but on the three-level features, just a few external characteristics of sweat pores may be able to confirm the match.

However, the difficulty of popularizing this technology is no less than re-doing a set of fingerprint systems. For example, collecting fingerprints must be high-definition, and extracting fingerprints must also be high-definition. At the very least, the current way of taking fingerprints must be updated. Each current survey detachment is equipped with a high-definition spectral imaging instrument, which is basic...

Of course, the hardest thing is always people.

If the difficulty of marking the second-level features of fingerprints is LV2, the difficulty of marking the three-level features of fingerprints is LV4.

New technology is good to use, but the probability of error is also very high. And in the criminal investigation industry, the cost of error is often super large, especially in countries like China or Japan, when the conviction rate has been maintained at 90% or even higher for a long time, the power is certainly huge, and the difficulty of not carrying any responsibility is also increasing synchronously.

"Number one is not."

Jiang Yuan habitually numbered the 8 people, and after obtaining a definitive answer, he directly asked Wang Chuanxing to notify the other side by phone.

After all, several criminal police officers accompanied the chat, and the psychological pressure of the criminal suspect and his family was also full.

"Number two is not..."

"Number three is not..."

Jiang Yuan also returned very quickly, and in one breath, he looked at three of the six fingerprints delivered in the first batch.

When he started looking at the fourth fingerprint, Li Zemin suddenly began to cheer quietly behind him.

"Hit! Hit! Hit!"

Li Zemin swung his arms with a small amplitude, his eyes carrying the excitement of a stock investor watching the market.

"Number four is not."

Jiang Yuan's feedback was extremely fast.

Li Zemin sighed regretfully.

Jiang Yuan looked back at him amusedly, opened the fifth fingerprint again, and said: "The fingerprints have already been determined, what is the difference between you shouting and not shouting."

"As long as you haven't seen it, these are Schrödinger's fingerprints. This person himself hasn't seen the three-level features of his own fingerprints." Li Zemin said and handed a Zhonghua to Jiang Yuan, his body had gradually begun to sway forward.

Jiang Yuan laughed, turned his head to enlarge the fingerprint details, and observed while adjusting.

There is another problem with the three-level features of fingerprints. It is too high-definition and too small, so that you can't determine which area of the finger it is on a piece of fingerprint first.

This is not like the second-level features of fingerprints, which is at most more than a hundred feature points, and it is determined after a slight comparison.

Of course, this kind of difficulty bullies the bottom-level technicians, just like some leaders, it has no effect on experts at Jiang Yuan's level.

"Number five is not."

Jiang Yuan gave a negative answer again.

"Only number six is left, number seven and number eight live relatively remotely, and both groups have not arrived yet." Liu Zhuangshi was also pinching his palms in the side, almost sweating.

Jiang Yuan nodded.

Li Zemin on the side laughed: "Say a politically incorrect word, living remotely, the probability is greater, it's okay, 6 is not hit, the probability of 7 and 8 is greater..."

"Hit."

Jiang Yuan interrupted Li Zemin's words, only did a verification, and said to Wang Chuanxing: "Call group 6, pay attention to safety, be cautious, don't let the suspect hear!"

Li Zemin held the cigarette and was stunned: "So fast? Shouldn't you look at it properly?"

"Look at the real person after putting on handcuffs." Jiang Yuan answered more directly.