Great Power Technology.

Chapter 436 Answers
Before that, Ye Zhou had also carefully read the AES technology documentation provided by the simulator. What he never understood was why the image recognition part in the algorithm module was so large and complicated. At first he thought that It is to ensure the accuracy of the image, but now it seems that it is not the same thing at all.

This part of the code exists only to solve the problem of neural self-error correction.

There is an essential difference between a high-precision camera and the human eye. A very simple particle is that in the civilian field, even if it is an advanced camera, it is impossible to dynamically adjust the gain of areas of different brightness like the cells of the retinal ganglion. To achieve such a function, it is necessary to use the so-called SME-HDR algorithm.

The SME-HDR algorithm is realized through the back-end processing system. In this process, a large number of redundant data sets will inevitably appear, and these data sets will immediately activate the self-correcting function of the human brain, thereby correcting it to be correct. visual signal.

But the problem is that these final versions of the visual signals will also be written back to the camera system, thereby dynamically adjusting the data of the SME-HDR algorithm.

Moreover, the dynamic gain of brightness is not the only problem faced by the camera. Differences in central resolution capabilities, differences in single-photon resolution capabilities, too mapping algorithms, differences in color and color gamut sensitivities... all kinds of problems are superimposed, making corrections difficult. The difficulty of making mistakes increases geometrically.

Computers can withstand such calculations, but what about the human brain?
Therefore, when the experiment was only halfway through, Yang Yijin had already seen Yaoyao's discomfort --- because at that time, she was indeed very tired.

Ye Zhou sighed deeply. He never imagined that what restricts the development of AVS technology is not the technology itself, but a factor that is almost ignored by everyone: the camera.

Moreover, the problem is not that the camera is not advanced enough, on the contrary, it is because its functions are too advanced compared to the human eye.

The resolution is too high, the color distortion is too small, the shape distortion is almost non-existent...

If you want to express it in easy-to-understand language, the visual system of a normal person is a third-rate camera with a first-rate processor, but under the AVS system, it becomes a super-first-rate camera with a second-rate processor, because according to In the current plan, the neural path established by the AVS system cannot reach the agility of the original neural pathway of the human body.

Under the ebb and flow, problems have become a natural thing.

There are only two ways to solve this problem: either custom-made special cameras, or invasive surgery to widen the nerve pathway.

However, the increase in cost and the decrease in convenience brought about by these two methods are extremely unsuitable for large-scale promotion.

So, the final solution is to use algorithms to compensate for the shortcomings of the device.

This obviously violates the principle of "the code should be as concise as possible" in computer science, so in fact it also has a negative impact.

Thinking of this, Ye Zhou shook his head slightly.

I have to say that the researchers in my own timeline are lucky. This kind of luck is not because I directly obtained the AVS technology, but after obtaining the technology, I selected one of the most typical, self-correcting technology in the first experiment. the most error-prone subjects.

This kind of luck has tested the most extreme situation once, but on another timeline, I am afraid that thousands of tests are not enough to achieve such an effect.

After listening to Ye Zhou's explanation of the cause of the problem, Chen Li's team also felt stunned, especially Zhu Xuan, who had already discovered a large number of redundant codes in the algorithm and analyzed its functionality, but he always wanted to It doesn't make sense, what problems are these codes used to deal with.

Now, all doubts have been answered.

"So, if we want to continue to develop AVS technology, we have to start with making cameras?"

Hearing Chen Li's question, Ye Zhou nodded slightly and replied:

"Either build a camera, or do a craniotomy. The risk of the latter is too high. You can't open a hole in the back of the head to connect a USB port like in a sci-fi movie, right? The risk of infection is no joke. .”

"Okay... But in this way, this experiment will be postponed. It is not difficult to create a camera with a function similar to that of the human eye. The main difficulty is the debugging process. I guess this process will not take three to five years at all. Can't come down."

Chen Li's expression was a little disappointed, his eyes seemed to casually glance at Yaoyao who was sitting quietly, everyone could see what was going on in his heart.

The cruelest thing in this world is not losing hope, but taking it away in a short time after regaining hope.

There is a saying, "I could have endured the darkness, if I hadn't seen the light." This sentence seems a bit hypocritical, but it is a true portrayal of Yaoyao.

She had seen light, literally, but now, she was plunged into darkness again.

Ye Zhou went up to touch Yaoyao's hair. She raised her face in doubt, as if she still didn't understand why she could see it just now, but now her eyes turned gray again.

"Uncle, is your computer out of power?"

Hearing her words, the expressions of everyone around were a bit bitter, only Ye Zhou smiled and replied:
"It's not that there's no electricity, it's that your new eyes need a rest."

After finishing speaking, he didn't look at Yaoyao's reaction, but turned directly to Chen Li and said:

"Don't make things so complicated."

"Development of new cameras is something to do, but that doesn't mean the movement to help the blind is on hold."

"The problem now is very simple. There is a conflict between the computing power of the nervous system and the information instruction set density of the camera."

"In that case, it would be nice to lose some of the information set."

"Remove the information set of color and depth of field, and only keep shape and light and shade."

"Isn't it a huge progress to make blind people become full-color blind?"

.......
Two hours later, the AVS system completed the test after removing the color and depth of field lenses according to Ye Zhou's request, and the test results surprised everyone.

Prior to this, they generally believed that human beings' judgment of depth of field came from binoculars, that is, dual cameras, but it turns out that the adaptability of the human brain is much stronger than they imagined.

One eye piercing is difficult, but not impossible.

And Yaoyao obviously has an astonishing talent in this respect.

Just over an hour after the experiment started, she was already able to walk in the room, go up and down stairs and avoid obstacles with the help of visual signals delivered by the AVS system.

It seemed effortless to her, and even when Chuya helped her remove the interface electrodes, she still seemed a little unsatisfied.

"Okay Yaoyao, you sit on the side and wait for a while, we have to assemble the equipment so that you can take it away."

Yaoyao nodded obediently and groped and squatted on the ground. Yang Yijin walked over to pick her up and put her on the sofa outside the laboratory.

The assembly work was in charge of several junior researchers under Chen Li. He didn't need to do it himself, so he sat with Ye Zhou and the others.

"You started with a mobile solution?"

Ye Zhou looked curiously at the AVS equipment that was gradually being assembled into a helmet, and asked.

"It must be a mobile solution, otherwise, if the experiment is successful, the subject can't take it away, it would be too nonsense... Moreover, the process of collecting information is not over yet, let her take it to a complex environment Further optimization of the algorithm is actually helpful for subsequent equipment improvement.”

Ye Zhou nodded and didn't ask any more questions, but turned to Yaoyao and asked:
"Yaoyao, new eyes, do you feel used to it?"

Yaoyao on the sofa frowned and thought for a moment, then replied:
"Without color."

"Yeah, there will be color later."

"But I want to see color."

"But there's nothing you can do now, your brain won't be able to take it if you want to see color."

"I can take it!"

Ye Zhou couldn't help laughing. After all, she was still a child at heart, and when she met something she really wanted, she would still act like a spoiled child and play tricks like her peers.

Thinking of this, Ye Zhou didn't continue to entangle with her topic, but paused for a moment, then continued to ask:
"Now that you can see it, what do you want to do?"

"Go to kindergarten."

Hearing this answer, everyone on the sofa laughed.

After laughing, I felt a little sad again.

The accident at home was actually when she had just finished kindergarten, so her influence on "going to school" probably only stayed at that time.

She can learn a lot from the mobile phone, but she can't learn the concepts of elementary school and junior high school after kindergarten.

"You are almost seven years old, you can't go to kindergarten anymore, you should go to elementary school."

"Then go to elementary school."

"After elementary school? When you grow up? What do you want to do?"

This is a classic question. It seems that all adults can't help but ask "what do you want to do when you grow up" when facing a child who has just started school, just like facing a child who has just learned to talk and walk, always It's the same as asking him "where are mom and dad".

Ye Zhou thought she would give answers such as astronauts and scientists, and even wondered nonsensically if she would say that she wanted to be a lumberjack, because yesterday at her home, he saw the animation on her mobile phone The film was about lumberjacks.

But unexpectedly, her answer was different from what everyone had guessed.

"I want to be a fireman."

Ye Zhou was taken aback for a moment, and asked:
"Do you know what a fireman does?"

"I know."

Yaoyao's face showed a serious look like a little adult, and after a while, she lowered her head, her fingers slowly entangled, and then said in a low voice:

"Firefighters put out fires...fire...is a bad thing."

(End of this chapter)