What is the resolution of the human eye?

[StrangerGuy]

Discuss.

 

[Goosemaster]

It is pretty damn high and varies....

 

[Goosemaster]

How many megapixels equivalent does the eye have?

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.

:Q


from here

 

[OOBradm]

What framerate does the human eye see at?

 

[MercenaryForHire]

Originally posted by: OOBradm
What framerate does the human eye see at?

1000000fps.

- M4H

 

[Goosemaster]

Originally posted by: OOBradm
What framerate does the human eye see at?

seasoned directors see everything at 24fps and all us wannabes see at 29.97

 

[EagleKeeper]

Originally posted by: OOBradm
What framerate does the human eye see at?

20-25 Frames / second

 

[destrekor]

8
light doesn't present itself in digital dots, thus infinite

 

[Goosemaster]

Originally posted by: EagleKeeper

Originally posted by: OOBradm
What framerate does the human eye see at?

20-25 Frames / second

I wouldthink that it would be approaching 200 for some people.

 

[Goosemaster]

Originally posted by: destrekor
8
light doesn't present itself in digital dots, thus infinite

aye, but a digital equivalent is jsut another way of saying a digital aproximation.

Pi is not 3.14 but 3.14159 works for moth math problems

 

[SKORPI0]

>576 mp.

 

[destrekor]

Originally posted by: EagleKeeper

Originally posted by: OOBradm
What framerate does the human eye see at?

20-25 Frames / second

the only reason film is around 24fps or 29.97fps is because of motion blurring. it is debated, but on average I believe it is around 40-60fps (progressive).

 

[MercenaryForHire]

Originally posted by: Goosemaster

Originally posted by: EagleKeeper

Originally posted by: OOBradm
What framerate does the human eye see at?

20-25 Frames / second

I wouldthink that it would be approaching 200 for some people.

< Insert link to fighter pilots IDing model/specs of jet flashed for 1/200s >

- M4H

 

[Descartes]

Originally posted by: destrekor
8
light doesn't present itself in digital dots, thus infinite

That's not exactly true. The cones and rods in your eye could just as easily represent pixels in a CCD. You don't have an infinite number of cones and rods obviously.

 

[MercenaryForHire]

Originally posted by: Descartes

Originally posted by: destrekor
8
light doesn't present itself in digital dots, thus infinite

That's not exactly true. The cones and rods in your eye could just as easily represent pixels in a CCD. You don't have an infinite number of cones and rods obviously.

Well, if you want to go on that, the human eye is only 6-7MP in colour. 120MP in black & white though.

- M4H

 

[destrekor]

Originally posted by: Descartes

Originally posted by: destrekor
8
light doesn't present itself in digital dots, thus infinite

That's not exactly true. The cones and rods in your eye could just as easily represent pixels in a CCD. You don't have an infinite number of cones and rods obviously.

then how many rods and cones are there? I thought each rod and cone would combine many waves of light into one 'scene', and not individual light waves.

 

[EagleKeeper]

Originally posted by: Goosemaster

Originally posted by: EagleKeeper

Originally posted by: OOBradm
What framerate does the human eye see at?

20-25 Frames / second

I would think that it would be approaching 200 for some people.

Ran tests for video displays in military A/C cockpits.
Above 20-55 FPS, the information was not being recorded; thereby being a waster of CPU power.
Whether this is a function of the eye or the ability to process the info was beyond the scope.

 

[Descartes]

Originally posted by: destrekor

Originally posted by: Descartes

Originally posted by: destrekor
8
light doesn't present itself in digital dots, thus infinite

That's not exactly true. The cones and rods in your eye could just as easily represent pixels in a CCD. You don't have an infinite number of cones and rods obviously.

then how many rods and cones are there? I thought each rod and cone would combine many waves of light into one 'scene', and not individual light waves.

Cones and rods operate independent of one another. It's their independent reception and subsequent transmission that results in an image. I don't know how the chemical process works, but photons impacting the cones/rods gets turned into a chemical message that the ganglion cells receive, and from there it's on to the optical nerve, etc. It's ultimately the brain's responsibility of developing an image in coordination with other cognitive facilities (e.g. memory).

That's how I understand it anyway.

 

[thirdlegstump]

I'd imagine infinitely continuous motion.

 

[DVK916]

How is our eyes able to automatically adjust to lighting, and auto focusing and what we are looking at. We need to make a camera with this kind of abilities.

 

[MercenaryForHire]

Originally posted by: DVK916
How is our eyes able to automatically adjust to lighting, and auto focusing and what we are looking at. We need to make a camera with this kind of abilities.

The 3D Engine HumanBrian v.2006 has all kinds of awesome effects.

I enjoy the curved surfaces, bump mapping, and force feedback myself.

- M4H

 

[DVK916]

Originally posted by: MercenaryForHire

Originally posted by: DVK916
How is our eyes able to automatically adjust to lighting, and auto focusing and what we are looking at. We need to make a camera with this kind of abilities.

The 3D Engine HumanBrian v.2006 has all kinds of awesome effects.

I enjoy the curved surfaces, bump mapping, and force feedback myself.

- M4H

We need to make a processor capable of doing things the human brain does passivly, like auto focusing our eyes, adjust for lighting, ect.

It sucks when a room is too dim and I need a tri pod to take a photo but I don't have a tri pod, but my eyes can see the image just fine.

 

[IGBT]

Originally posted by: Goosemaster

How many megapixels equivalent does the eye have?

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.

:Q


from here

..many people complain of floaters in their field of view. What causes that and why is it common in nearly all age groups??

 

[Lonyo]

Originally posted by: IGBT

Originally posted by: Goosemaster

How many megapixels equivalent does the eye have?

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.

:Q


from here

..many people complain of floaters in their field of view. What causes that and why is it common in nearly all age groups??

Dead cells I think that are caught in the vitreous fluid or something.
But that might be totally wrong, so I will check Google and Wikipedia.

 

[sygyzy]

Originally posted by: IGBT

Originally posted by: Goosemaster

How many megapixels equivalent does the eye have?

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.

:Q


from here

..many people complain of floaters in their field of view. What causes that and why is it common in nearly all age groups??

I am not sure what relevence the quote has to your question or your question to the topic. Are you just asking a random eye related question?