What is the Equivalent Megapixel Rating of the Human Eye?

In summary, the human eye has a very high resolution, which is largely dependent on the density of receptors in the retina. It is unknown whether or not a camera that uses the same processes as the human eye is currently being developed.
  • #1
memorygap
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i was just wondering, what is the equivelent megapixel rating of the human eye? i would expect the back of the eye to be around the size of a 35mm negative commonly rated at around 10mp, it can't be any bigger than a 120 film negative which is rated somewhere around 50mp.
is there any research underway for a biological camera which uses the same processes as the human eye? and if so, how is it underway?
 
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  • #2
One thing I can tell you is that the human eye is not the same resolution across your visual field. Acuity is much better at the fovea than at the outer areas. It depends on how densly the neurons in the eye are packed. There is only so much room in there for various rods and cones. I'm not sure how the human eye compares to cameras in terms of resolution. I know that human vision an machine vison in general are very different things.
 
  • #3
  • #4
You might be interested in the following figure:
rcdist.gif


about rod and cone density on retina (rods are for aren't color sensitive, but are more sensitive than cones, who ARE color sensitive) on the following website: http://hyperphysics.phy-astr.gsu.edu/hbase/vision/rodcone.html
 
  • #5
Maybe this site? http://www.wdv.com/Eye/EyeBandwidth/ [Broken]

A Better Approximation: The Eye has 126 Million "Pixels"
According to Dr. John Penn, of the UAMS eye center, the adult retina has 126 million receptors. He points out that not all of these are activated under all lighting conditions, to wit, "as light environment increases in luminance, rod response becomes saturated long before cones are maximally functional."

Washington neuroscience agrees with Dr. Penn. According to this source there are 120 million rods and 6 million cones.
Using the figure of 126 million "pixels" or receptors a display device that met or exceeded the performance of a fixed, staring eye would have 11,225 pixels on an edge.
 
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What is the difference between the human eye and a camera?

The human eye and a camera are both used to capture images, but they work in very different ways. The human eye is a complex organ that uses the brain to interpret light and convert it into images, while a camera uses lenses and sensors to capture and record light.

Can the human eye see more colors than a camera?

Yes, the human eye can see a wider range of colors than a camera. The human eye contains millions of specialized cells called cones, which allow us to see color. Cameras, on the other hand, have a limited number of color sensors, so they are not able to capture the full spectrum of colors that the human eye can see.

Which one has a higher resolution, the human eye or a camera?

The human eye has a much higher resolution than a camera. The average human eye can distinguish about 10 million different colors and has a resolution of about 576 megapixels, while the most advanced cameras on the market have a maximum resolution of around 100 megapixels.

Can a camera see in the dark like the human eye?

No, cameras cannot see in the dark like the human eye. The human eye has a specialized structure called the retina, which contains light-sensitive cells called rods and cones. These cells allow us to see in low light conditions. Cameras, on the other hand, need external light sources such as flash or ambient light to capture images.

Do cameras have a blind spot like the human eye?

No, cameras do not have a blind spot like the human eye. The human eye has a small area on the retina where there are no light-sensitive cells, resulting in a blind spot. This is because the optic nerve, which transmits visual information to the brain, passes through this area. Cameras do not have a blind spot because they do not have an optic nerve.

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