If the human eye was a digital camera, what resolution would it be?

Answer 1

http://clarkvision.com/imagedetail/eye-resolution.html

324 megapixels

The eye is not a single frame snapshot camera. It is more like a video stream. The eye moves rapidly in small angular amounts and continually updates the image in one's brain to "paint" the detail. We also have two eyes, and our brains combine the signals to increase the resolution further. We also typically move our eyes around the scene to gather more information. Because of these factors, the eye plus brain assembles a higher resolution image than possible with the number of photoreceptors in the retina. So the megapixel equivalent numbers below refer to the spatial detail in an image that would be required to show what the human eye could see when you view a scene.

Based on the above data for the resolution of the human eye, let's try a "small" example first. Consider a view in front of you that is 90 degrees by 90 degrees, like looking through an open window at a scene. The number of pixels would be
90 degrees * 60 arc-minutes/degree * 1/0.3 * 90 * 60 * 1/0.3 = 324,000,000 pixels (324 megapixels).
At any one moment, you actually do not perceive that many pixels, but your eye moves around the scene to see all the detail you want. But the human eye really sees a larger field of view, close to 180 degrees. Let's be conservative and use 120 degrees for the field of view. Then we would see
120 * 120 * 60 * 60 / (0.3 * 0.3) = 576 megapixels.
The full angle of human vision would require even more megapixels. This kind of image detail requires A large format camera to record.

Answer 2

actually the human eye has poor resolution. The focus area of the eye is relatively small. Your brain holds the information while you look around and visially maps the images. And in that area the resolution would approx... 600 dpi. very weak compared to most cameras.
But what the eye can do that camera cant yet is that it can see to 10 stops, by this i mean 10 focal points of light. If you look at someone in the shade and there is sun behind them... you see him exposed properly and the background properly because our brain and eyes can adjust for that... film and digital cameras cannot... we can see in a dimly lit room where a camera would never be able to do so in the time frame we can make out an image it would take a camera probably 30 sec to a minute...

Answer 3

The eye is not a single frame snapshot camera, but more like a video stream. The eye moves rapidly in small angular amounts and continually updates the image in one's brain to "paint" the detail. We also have two eyes, and our brains combine the signals to increase the resolution further. We also typically move our eyes around the scene to gather more information. Because of these factors, the eye plus brain assembles a higher resolution image than possible with the number of photoreceptors in the retina. So the megapixel equivalent numbers below refer to the spatial detail in an image that would be required to show what the human eye could see when you view a scene.

Based on the above data for the resolution of the human eye, let's try a "small" example first. Consider a view in front of you that is 90 degrees by 90 degrees, like looking through an open window at a scene. The number of pixels would be
90 degrees * 60 arc-minutes/degree * 1/0.3 * 90 * 60 * 1/0.3 = 324,000,000 pixels (324 megapixels).
At any one moment, you actually do not perceive that many pixels, but your eye moves around the scene to see all the detail you want. But the human eye really sees a larger field of view, close to 180 degrees. Let's be conservative and use 120 degrees for the field of view. Then we would see
120 * 120 * 60 * 60 / (0.3 * 0.3) = 576 megapixels.
The full angle of human vision would require even more megapixels. This kind of image detail requires A large format camera to record.

Also u could refer to
http://www.tvtechnology.com/features/Tech-Corner/Hoffner_features.shtml

for a better technical answer with dtls.

Answer 4

Short answer: That depends on how big the print/projection of the pictures is, and how close you hold said print to your face. Longer answer: a highway billboard sign can be printed with pixels an inch or so in size, and you might not even notice while driving by it. A large-ish highway billboard might take up the same filed of view, from the highway, as a 4" by 6" print held 18" from your face. A 3 or 4 megapixel camera would produce 4" by 6" print that you couldn't see the pixels at 18" away, unless you did a lot of cropping or your eyesight is a _LOT_ better than 20/20. Doing a home brew test a few minutes ago, an 8" by 10" print held about 6" from my face covers my field of view. _I_ can't see pixels on that print under those conditions, using a minimally cropped image from a 3 megapixel camera, using reading glasses that correct my vision to slightly better than 20/20.

Answer 5

Enormous. Practically infinite. Even compared to film camera, eye is more subtle. Just think about report of illumination (brightest spot reported to darkest spot) this is for digital 2.5/1 and for film 8/1 and for human eye more than 100/1.

Answer 6

5000

Answer 7

2nd to the high quality digital camera

Answer 8

Microscopic.

Answer 9

300 - 350 megapix

Answer 10

it wud b da bestpossible resolution in da world ! ! !