Zhejiang Online on January 08, these two days, many people are talking about “pixel eyes”.
The Internet said that the young man, in 45,000 small blocks of a huge Rubik’s cube wall to find the only different piece of that 1, but also that he is a super “stubble king”, the world’s youngest memory master.
Yesterday, the reporter also hilarious, go online to find a video to worship the super stubble king.
Last Friday, he participated in a science program called “The Strongest Brain” on Jiangsu TV, and the nickname “Pixel Eye” came from this program.
In the program, Zheng Caiqian faced a huge Rubik’s Cube wall, 6 meters long and 3 meters high, consisting of 5,000 Rubik’s Cubes. The Rubik’s Cube wall is separated into two blocks from the middle, with 2,500 Rubik’s Cubes on the left and right, and they have the exact same pattern.
45,000 small color blocks are densely stacked together, from a distance, it looks like a TV set with a flower screen, can not see 1 minute dizzy. The show’s guest, Jay Chou, teased, “Smart people, look at 1 minute and stop looking.”
Zheng Caiqian not only to stare, but also to complete his challenge project: the guest from the right side of the wall to pick a random Rubik’s cube, after changing one of the color blocks back to the original position, he has to find this different color.
This principle is the same as watching three-dimensional painting
The two guests who went on stage forgot which Rubik’s cube they had ordered as soon as they turned around, and the guest Liang Dong commented that “these people are crazy”.
45,000 small blocks of color, to find out the difference between 1/45,000, for liberal arts students, to understand such a noble science, it is a bit difficult for people.
However, several friends of the reporter’s eye hospital watched the program and told me calmly: it is not difficult, after training can be done.
”Have you ever played three-dimensional painting as a child, staring hard at a picture, after a while you can see the three-dimensional effect, in fact, the reason is the same.” Zhejiang Provincial Eye Hospital, Dr. Hou Lijie told me that the principle of three-dimensional painting is this, two of the same picture, slightly offset a little angle and then superimposed.
In the program, the left and right two Rubik’s Cube wall, the size and pattern is exactly the same, equivalent to two identical pictures. One of the places, the color changed, the brain will form a visual like watching a three-dimensional picture: most of them are flat, only different places will be convex or concave, producing a three-dimensional effect.
After the program aired, some people on the Internet listed Zheng Caiqian’s various special talents, including memorizing the 15,000-year-old almanac, reciting the “Thousand Character Classic” backwards in two hours, memorizing 150 headshots of people’s names in 15 minutes, and so on.
Some people also ask how to improve their memory so that they can be like the contestant Zheng Caiqian in “The Greatest Brain”.
But listen to the ophthalmologist so explained, it seems that Zheng Caiqian in the program performance of special features, and memory does not have much to do with the key or have eyesight.
”Of course, there must be a certain distance when looking, a certain perspective, both sides of the picture must be the same size, the same height and superimpose the picture of the two eyes to form a three-dimensional picture.” Dr. Chen Yan of Zhejiang Provincial Eye Hospital, who also watched the program, told me that as long as both eyes function normally, with training it should be possible to achieve.
”But the size of the diagram is so large and the degree of offset is so large that it is difficult for the average person to see such a large diagram as a stereogram. His eyesight is really powerful.” She said.
Eyes twisted into crossed eyes to see the diagram better
If not a strong memory, then what is the principle of Zheng Caiqian’s “golden eyes”?
I don’t know if you have noticed, as soon as the host said “start”, he immediately entered the “cross-eyed” state. When we look at the three-dimensional paintings as children, we will also use this trick.
”The cross-eye may really help him, because the cross-eye can expand the range of fusion function.” This is how Dr. Hou explained it.
There is a particularly important concept involved here: “fusion function”. After watching the program, Dr. Hou concluded that Zheng Caiqian’s fusion range is stronger than the average person.
He gave a small example to give you a sense of what “fusion function” is.
Hold something in front of your eyes, such as a cell phone. When you hold the phone very close to your face, you can see one phone with one eye, but if you look at it with both eyes, you will see two phones, creating double vision, which is called “diplopia” in ophthalmology.
This time, if you twist into a “cross-eyed”, double vision can be improved. “Because the left and right eyes have a certain interval, the images seen by the left and right eyes do not completely overlap, only after the brain fusion, discrimination, to form a complete image.” Dr. Hou said that in the state of “cross-eyed”, this fusion range can be larger.
Dr. Chen Yan also took a closer look at Zheng Caiqian. She felt that Zheng Caiqian’s eyes squinting left and right in the latter seconds was actually a gimmick, because with only one eye, it was impossible to find the difference and see the point protruding.
”Stereopsis definitely has to rely on both eyes to see, even for myopic eyes, as long as the difference between the two eye degrees is not too big, you can do it after training.” However, she said, training can bring about visual fatigue and can easily produce myopia.
Dr. Hou said Zheng Caiqian himself has a strong fusion function, while finding different color blocks with the help of a little skill. “People usually do not go to practice cross-eyed, over time will become internal strabismus.”
Want to take the beauty school, pilot best to check the stereo vision first
Two doctors told reporters that the fusion function has a lot to do with the stereo vision function of the eye.
”When you look at a three-dimensional painting, although it is a flat picture, but because of the angular difference between the two positions, you end up seeing a sense of depth in space, this three-dimensional sense, it is related to the stereo vision function of the eye.” He said, if there is no stereo vision, even if you wear 3D glasses can not see the 3D effect.
Without stereo vision function, many fine work can not be done, such as carving, painting, pilots.
Dr. Chen once met a girl who learned to draw and painted for many years without much progress. By chance, it was discovered that she had poor stereo vision.
”If you can’t draw well, it may not be that you don’t have the talent to draw, but the eye function is also critical.” Dr. Chen always remembered this girl, when her mother cried out when she heard the result.
Dr. Hou also met a boy who took the pilot exam and passed all the physical exams, but not the stereo vision. Later, after more than 1 month of training, he improved a lot; however, he had already missed the flight recruitment that year.
Therefore, young people who want to engage in these fine jobs in the future can go to an eye hospital in advance for a checkup.
In professional eye hospitals, there is a binocular vision outpatient examination, you can check the stereo visual function. Dr. Hou said, generally 40 to 60 is the normal value, the larger the value, the worse the stereo vision function.
This value, we can understand the angle of deviation of the image on the stereo painting, stereo vision function of good people, even if the deviation of a very small angle, can easily see the stereo effect; while the function is not so good, may need to deviate from 100 ° to see the stereo effect.
The two experts told me that, in general, stereopsis does not develop until after the age of 3. If the eyes have normal vision and no diseases that produce stereopsis disorders, everyone’s stereopsis can reach the normal range.
”However, if there is strabismus, amblyopia, or too much difference in the degree of the two eyes, stereopsis will be affected.” Dr. Hou said that the recovery is faster when corrected as a child, so if parents find that their children have amblyopia and strabismus, they must take them to the hospital and have the amblyopia and strabismus corrected first, otherwise it will have an impact on future visual function.
Scientific reasoning on what stereopsis is all about
When we hold a ballpoint pen in each hand, both hands are flat and the nibs slowly come together, we can find it easy to align the two nibs; if we try with one eye closed, it’s not so easy.
Why is this?
When our two eyes look at an object, the object forms two images on the retina of the left and right eyes respectively, but because there is a certain interval between the left and right eyes, the left eye can see the image slightly to the left and the right eye can see the image slightly to the right, so the two images are not exactly the same and cannot completely overlap. This visual image into the brain, after the brain synthesis, discrimination, so that the object produced a sense of spatial depth, a sense of three-dimensional, which is stereo vision, stereo vision, also known as depth perception or stereoscopic.
People without stereo vision function, lack of stereo sense, can not discern the distance of the object, like drivers, machining, painting and other work can not be competent. With the increase in distance, objects in our two eyes retinal imaging is also very close, generally more than 500 meters, the two retinal image of the object is basically overlapping, and thus the sense of stereo is not obvious. Isn’t it? Why does a bright moon seem to be hanging in the treetops?
Using the principle of stereoscopic vision, people developed a stereoscopic aviation film, two flat aviation photos, placed under the stereoscope, the left eye through the left eyepiece to look at a photo on the left, the right eye through the right eyepiece to look at a photo on the right, a little adjustment, you will find, like a film on the mountains, deep valleys, waterfalls, glaciers are “standing” up, as you look down on the plane. As you look down on the earth in the plane.
In addition, people have also developed three-dimensional photography, three-dimensional film, three-dimensional painting, etc., for production, life, entertainment services.