What is the resolution and pixels of the human eye

The eyes with normal vision are estimated to be hundreds of billions, and what they see is three-dimensional. It's not like a digital camera's pixels.

If I had to use a number: the resolution is 11000

x11000, with a total pixel of about 1.2 billion.

From an imaging point of view, the human eye can be reduced to a concave lens and a screen. The cornea, aqueous fluid, lens, and vitreous humor in the eyeball work together to act as a "concave lens", and the retina acts as a "screen". The "focal length" of normal human eyes is less than 2cm, and the object distance is greater than 2 times the focal length of objects when seen by human eyes.

When the light that enters the eye from an object is refracted by a concave lens, it becomes a real image on the retina that is rationalized and reduced, and the human eye prevents the object from seeing.

2. Resolution is the subtlety of the content displayed in the image, and pixels are the smallest units that make up the image.

1. The human eye has no resolution and pixels, and if you insist on pulling them together, it probably only corresponds to the resolution of the lens.

3. Myopia may be a macro lens or a lens with a lens that is not transparent enough.

4. Because the human eye does not zoom, generally speaking, one eye is about equivalent to a 50mm lens angle of view equivalent to 135 specifications, and binocular is about equivalent to a 35mm lens angle of view equivalent to 135 specifications.

Finally, since you don't know what resolution and pixels are, why would you first ask about the relationship between the human eye and it, which is a bit ridiculous!

Want to know how many pixels the human eye can reach? Physiologists have found that under good lighting conditions, the human eye can distinguish two thin lines of spaced degrees at a certain distance, and if these two thin lines are compared to pixels, then the degree is 1 pixel.

It is generally believed that the horizontal field of view of the human eye is 120 degrees, so that the horizontal picture is recognizable is 24000 pixels, if our field of vision is regarded as a square picture, then the vertical resolution is also 24000 pixels, so that with 24000 24000, you can get 100 million pixels, think about it, the 100 million pixel camera has made us feel very good, but in fact, our eyes are more than 5 times it, is it more bullish? However, it should also be pointed out that physiologists believe that the above algorithm is a conservative algorithm, in fact, the visual pixel resolution of the human eye is higher, and the better the eyesight, the stronger the resolution, the higher the visual pixels. 

If this is not the case in terms of physiological structure, physiologists have found that the light-sensitive retina in the human eye is composed of about 100 million visual cells, of which about 100 million cells work in the dark, and 6 million cells work in the light, they can respond to color and light accordingly, and feed back to the brain in the form of electrical impulses, allowing us to perceive the world in front of us, but we can't see it as a pixel, because a visual cell is not equal to a pixel, with the cooperation of a large number of visual cells, The visual function of a single cell is much more than a pixel. And during the day, when we look at things, there are only about 1.5 million visual cells working. 

Physiologists have also found that the human eye can distinguish more than 10 million colors, and it takes less than a second to move an object from a very far place to a very close place and reach a clear state, which is equivalent to the focus function of a camera, which no other camera can achieve at this speed. The human eye can also quickly switch between strong light and dark light environment, can browse a large amount of information in an instant and feedback to the brain, and can quickly pay attention to small objects from the large picture, clearly observe its details, the human eye is also the most cold-resistant organ in the human body, and seeing things in an environment of minus tens of degrees Celsius is still not affected.

According to experiments, the resolution of the human eye is only equivalent to 10,000 pixels.

The eye is roughly equivalent to a camera with a focal length of 50 mm, variable aperture F4-F32, up to 100 million pixels, ISO50-ISO6400, and shutter speed 1 24 non-stop continuous shooting. The focusing speed is extremely high, and you can switch from furthest to nearest in seconds, and never lose focus. The image processor is about the equivalent of 4 digital 3s working in parallel, and the fuzzy recognition processor in the background cannot be measured by a computer on Earth.

Categories: Education, Science, >> Science & Technology.

Analysis: — The resolution of the human eye ———

**The resolution corresponding to the field of view area is 2169 x 1213. Counting the blurred areas on the top, bottom, left, and right, the final resolution is 6000 x 4000.

— Calculation method ———

**When an object is present, the eye [angle of view] corresponding to the field of view is about 35° (horizontal) x 20° (vertical).

At the same time, the human eye is at medium brightness, and the [resolution (d)] of medium contrast is, and the corresponding [optimal distance (l)] is. where d and l satisfy tg(2)=d 2l, which is [resolution angle], and the general value is', is a very small corner.

The field of view is approximated as a rectangular cone with the ground in place, where the height of the cone is h = l = , 1 = 35° (horizontal viewing angle), 2 = 20° (vertical viewing angle). Take it as a point, and you can know that the bottom rectangle is 2169 x 1213 resolution.

it's never really easy,but it's ok.Hu Junyuan.

The principle of using the resolution of the human eye in a television set is shown below.

The human eye is actually a "super camera" with up to 100 million pixels.

If you compare it hard, the human eye is roughly equivalent to a camera with a 50 mm focal length, variable aperture F4-F32, 4 million pixels – yes, only 4 million pixels, ISO 50-ISO 6400 sensitivity, and a shutter speed of 1 24.

The lens is about equal to 3 elements and 3 groups, all of which are composed of aspherical lenses, and when the aperture (pupil) is less than f32, it is generally poisoned by some kind of chemical, and when it is larger, it is a dead person.

The focusing speed is extremely high, and you can complete the switch from the farthest to the nearest in seconds, and never run out of focus.

In the case of non-myopia, the depth of field is great.

The image processor is roughly equivalent to four digital 3s, working in parallel, while the fuzzy recognition processor in the background cannot be measured by a computer on Earth.

The human eye is an organ that responds to light and has a variety of uses. As the sensory organ of consciousness, the eye possesses vision. Rod cells and cone cells in the retina possess a sense of light and vision including color differentiation and depth awareness. The human eye can distinguish about 10 million colors.

Similar to other mammalian eyes, the non-imaging photosensitive ganglion cells of the human eye receive light signals in the retina, and the hormone melatonin and circadian clock-induced planning and inhibition affect and adjust the size of the pupil.

The full name in Chinese is image element. A pixel is just a unit of size for resolution, not image quality.

By definition, a pixel refers to the basic coding of the primary pigment and its grayscale. Pixels are the basic units that make up a digital image, and the resolution of an image is usually expressed in pixels per inch (ppi) per inch.

For example, a 300x300ppi resolution means that there are 300 pixels per inch of length horizontally and vertically, or 90,000 pixels (300x300) in one square inch.

Like photographic photographs, digital images have a continuous palette of shades, and if we zoom in several times, we will find that these continuous tones are actually composed of many small square dots of similar colors.

These small square dots are the smallest units that make up an image, pixels. This smallest graphic unit is displayed on the screen, usually as a single dot of color. The higher the pixel, the richer the color palette and the more realistic the color will be.