Ye Han was distracted and used for two purposes, and he got the matter of building a sect over there, and here he had a handy software, input the blurred screenshot pixels, and began to do high-order total variation according to the Euler-Lagrangian equation......

The blurry image is little by little, little by little, and it becomes clearer.

Of course, the configuration of the police station can't be high-end, so the running is called a slow, rough estimate, at least dozens of minutes and hours.

This is also the result of greatly optimizing the calculation process and reducing the resource consumption as much as possible.

It's not impossible to throw it to the average programmer, and it will take hours or even days.

The technical department let me pick it up in one day, which is completely normal.

"You're going to do this?"

Although the previous operation was not understood, except for the system, it is impossible for anyone in this world to understand it, but from this paragraph, black Chris can see it.

After all, he waited in the technical department to deal with the results not once or twice.

It's the first time he's seen it so fast, and it's ...... It's a broken computer of your own!

He also knows that the difference between computers and computers is greater than the difference between people and people.

"I understand a little."

Ye Han pushed his eyes, staring at the image on the screen that was gradually becoming clearer, and his mind couldn't help but deviate again.

Why are images blurry?

The resolution is not enough, the pixels are too low, and the light is not enough...... There are, of course, many reasons for this.

But why can it be repaired?

Because the high-order total variation can be denoised.

Here's the key...... Noise, well, image noise here, what's that?

It is unnecessary or redundant distracting information in image data. Theoretically, it is defined as "unpredictable random errors that can only be recognized by probabilistic and statistical methods".

Therefore, it is appropriate to think of it as a multidimensional stochastic process, which can be described by the probability distribution function and the probability density distribution function.

But...... Is noise really multidimensional random?

Before the advent of chaos theory, it seemed to be true in the deterministic world dominated by Liu Weil's theorem and Laplace's demon, but after the emergence of chaos theory, we know that many, many noises are not really random, and of course they are not pseudo-random of computers, but chaotic.

This is an inherent characteristic of nonlinear dynamical systems, and it is a common phenomenon in nonlinear systems.

Maybe some students want to say, chaos, isn't it random?

Of course not!

If so, how could Ye Han use chaos theory to predict the folded structure of proteins?

Chaos refers to seemingly random irregular movements that occur in a deterministic system, attention, just appearance.

Although chaotic, uncertain, unrepeatable, unpredictable, just like weather predictions, or stock market trends.

However, each chaotic phenomenon is described by a complete and definite equation, and there is no need to attach any random factor, and it is only because the system iteration is super sensitive to small changes in the initial value that it causes unpredictable phenomena in the later stage.

For example, the problem of thermal convection in the weather, such as the logistic equation of population growth......

So initially, the butterfly effect would be used to describe it.

Well, in fact, it wasn't a butterfly at first, but a seagull.

However, based on the first chaotic model of weather prediction, the Lorentz attractor derived at the end happened to form the shape of a butterfly in three-dimensional space, which was first called so by the reporter, and then even the author himself changed it, and over time......

It's a long way off, back to the matter of photo paste.

Obviously, some of the noise here can be extracted from the chaos model.

And it's just a first-order chaotic system.

Although it is impossible to predict for a long time, it is possible to extrapolate backwards based on the chaotic model according to the phenomena that have already occurred, and completely eliminate noise interference!

And maybe the results will be better, and the amount of computation will be less, as long as you can find an accurate description of the equation!

It may be difficult for others, but it is not very difficult for Ye Han, who can always find a period three of one-dimensional continuous mappings, that is, the Lee-York theorem, or Feigenbaum's two constants, or Sharkovsky's natural number set, as long as he is willing to put in the time and effort.

This topic is kind of interesting!

Thinking of Ye Han, he immediately started to act.

"Send me the photos of the same surveillance video at the time."

The more references, the easier it is to find patterns. Especially under the same light and dark conditions of the same camera in the same environment, irrelevant variables can be minimized.

"And then ......"

Then there was a slight but absolutely laborious "click" of the hard drive, the screen went blue, then black, and the computer malfunctioned and restarted.

Failed skill bar read.

It is estimated that there is not enough mana and not enough intelligence.

The picture is just half processed, and the kidnapper's head is also just half processed.

"NO~~~" Chris let out a wail, and the majestic passion of the black tenor trembled in it. Shocked the whole room.

"Well, can you find a computer with a high point and faster computing speed?" Ye Han was not surprised, and calmly said the second request.

Even if he turned into a computer brick, it was impossible for him to take a calculator and press the results of the program, right?

"Yes! Some! Chris nodded like pounding garlic, leading Ye Han to the door.

Half of my head was swiped out, and then it froze......

It's as if you went in right away, and suddenly said that you want to increase the price, the supermarket; It's like the pants are all down, and you find that there is no paper by the toilet; It's like an addiction, and when you open the package, you find that it's milk powder......

Brother Black's racial impulse can't be resisted at all!

Chen Lu walked out from under the computer, and smiled proudly at the backs of the two of them.

Men are big pigs' trotters, and if they don't force it when it's critical, it's easy to ignore the point.

==========

Fourth Police Station, Technical Section.

Entering the door is a large wall of monitors, many of which are showing explosions, car chases, and shootouts on the news wall...... The picture, absolutely first-hand information, bloody and exciting does not play mosaic.

However, the graphics processing room is a little innerer.

Chris took Ye Han all the way to swipe the card to open the door, beat around the bush, and soon came to the ground.

An obviously young Chinese researcher was sitting in front of the computer and was busy, and he was unexpectedly grabbed by the shoulder, picked it up, and put it aside.

"You sit." Chris couldn't help but press Ye Han down, "This computer has just been replaced, it must be the best." ”

Before the young researcher could react, he was taken over by the magpie's nest, and then the black eagle who helped him snatch it was still eyeing him back.

|? ω?｀)

What else can you do besides touching the wall in a daze?

Ye Han has no guilt, and 39's emotional intelligence does not support it.

I sat down and cut out of the table, and I took a look at the system configuration first.

UltraLAB graphics workstation, 4 Xeon, 4GPU, 48 memory, 4×6 channels, 6TBDDR4, professional graphics cards, game cards, GPU supercomputing cards, 4 disks, SSD6Gbps interface hard disks, 4TB......

Sure enough, it's excellent!

With a good idea, he called up the program with a crackle, entered the optimization algorithm with a crackle, and the crackling began to deteriorate.

100 for neural reflexes, 101 for intelligence...... Among the keyboard warriors, there is definitely no more derangement than him.

In the blink of an eye, he completed the input under the shocked gaze of the young researcher and began to run the program.

This time, the speed is not the same as before.

It's similar to high-precision printing, two or three seconds a centimeter, but in a few tens of seconds, it will deal with the part that crashed and restarted before.

It only took two or three minutes before it was done. It's still a little blurry, but the image is much clearer on the screen and in the printer.

Chris couldn't wait to grab the picture and rush out the door.

At the same time, the system prompt sounds-

[The case of the missing boy on Jinshui Street, 3% participation and 3% completion. 】

[Participation temporarily ranked first.] 】