According to scientist and photographer Dr. Roger Clark, the resolution of the human eye is 576 megapixels. That's huge when you compare it to the 12 megapixels of an iPhone 7's camera.
Can humans see 16K resolution? Beyond that, the human eye wouldn't be able to perceive any more detail on their screen. There'll be no great race to 16K or 32K. "That's about 48 million pixels to fill the field of view," Huddy explains.
576 megapixels is roughly 576,000,000 individual pixels, so at first glance, it would seem that we could see way more than an 8K TV has to offer. But it's not that simple. For instance, we see in 576 megapixel definition when our eyes are moving, but a single glance would only be about 5-15 megapixels.
A human with excellent vision can differentiate up to 160 pixels (80 intensity pairs) per degree of field of view. It's possible to see the difference between 4K and 8K video, but depends on the size of the display and the distance from the viewer. The human horizontal field of view (HFOV) is about 175 degrees.
We have found that the human eye can see 4K resolution when the gaze is still, but only if visual acuity is 20/20 or higher. If the gaze is moving, human eyes can see more than 8K resolution. When comparing 4K and other resolutions, you also need a high visual acuity and/or a short viewing distance.
We are 3D creatures, living in a 3D world but our eyes can show us only two dimensions. The depth that we all think we can see is merely a trick that our brains have learned; a byproduct of evolution putting our eyes on the front of our faces.
For a person with 20/20 vision, while sitting 10 feet away, one would need about a 75-inch display-diagonal for HD, 120-inch for 4K, and a whopping 280 inches for 8K to be able to distinguish the resolution!
If you're legally blind, your vision is 20/200 or less in your better eye or your field of vision is less than 20 degrees.
It seems that the best eyesight ever reported in a human was in an Aborigine man with 20/5 vision! To give you an idea of how clear and far he could see, his vision measurement compares to the natural sight of eagles. From 20 feet, he could perceive the fine details that most people can only see from 5 feet away!
The most commonly discussed 16K resolution is 15360 × 8640, which doubles the pixel count of 8K UHD in each dimension, for a total of four times as many pixels. This resolution has 132.7 megapixels, 16 times as many pixels as 4K resolution and 64 times as many pixels as 1080p resolution.
Of course, the total number of pixels is still infinite, since the doubling goes on forever. But any infinite subset of the positive integers can be put into bijection with the positive integers (like the example of even integers vs. positive integers earlier). So there are only as many pixels as integers.
According to scientist and photographer Dr. Roger Clark, the resolution of the human eye is 576 megapixels. That's huge when you compare it to the 12 megapixels of an iPhone 7's camera.
The smallest objects that the naked eye can see are about 0.1 mm long. That means that under the right conditions, you might be able to see an amoeba, a human egg, and a paramecium without using magnification.
The 'resolution' of the fovea — measured as the number of cone cells per unit area on the retinal mosaic' — is a key factor determining visual acuity. (The number of cone cells is finite, which is another reason why the visual system does not have infinite resolution.)
For dogs, it is around 70 fps; for a cat, 100 fps. If not, it just looks like a strobe light to them. For birds, it must be greater than 100 fps. So your pet bird may not be interested in a screen.
Most experts have a tough time agreeing on an exact number, but the conclusion is that most humans can see at a rate of 30 to 60 frames per second. There are two schools of thought on visual perception. One is absolute that the human eye cannot process visual data any faster than 60 frames per second.
Cone cells in canine eyes are also believed to blur their sight to a degree. More importantly, dogs process the frame rate, or “flicker fusion frequency,” of screens differently than people. Humans can detect movement at between 16 and 20 frames per second. Dogs need 70 frames per second or more.
And to be deemed "legally blind," their vision must be bad enough that they meet one of two standards: They must have a visual acuity of 20/200 or less in the eye they can see out of best (while wearing corrective glasses or contacts) or have a visual field of no more than 20 degrees.
Legal blindness means that your visual acuity is worse than 20/200 or a visual field that is less than 20 degrees even with the best possible correction. In order words, if your prescription is -2.5 or lower, this means that you are legally blind.
During this test, you may be considered legally blind if your peripheral vision is about 20° or less. Once you've taken these tests, you may need help reading your prescription. If your prescription is -2.5 or lower, you are legally blind, as visual acuity of -2.5 is equivalent to 20/200 vision.
The range of vision for a person is infinite. You can see for miles and miles. On a clear day, you can see for up to 3 miles before the horizon due to the curvature of the earth. Yet you can see skyscrapers in a further distance than 3 miles due to no horizon obstruction.
According to scientist and photographer Dr. Roger Clark, the resolution of the human eye is 576 megapixels. That's huge when you compare it to the 12 megapixels of an iPhone 7's camera. But what does this mean, really?
Do humans see better than 4K? If your gaze is still, and you have 20/20 vision or better, you will be able to see all the pixels in a 4K resolution display. The highest resolution the human eye can see is 576 million pixels, but this is only when your gaze is moving.
We move through three dimensions. Or do we? String theorists believe our world encompasses more than three dimensions. Without experiential evidence, the mathematical theory of space and time as a fourth dimension has remained just that since the days of Albert Einstein: a theory.