What is the resolution of the human eye?

[Cobra]

I thought this had been debated here on VideoHelp before, but nothing came up on a search ("human eye" AND "resolution"). It should be good for a debate.

So, what is the resolution or how could it be measured? Furthermore, what sort of "framerate" is it?

Cobra

[Faustus]

The eye is analog, its not a resolution.

[Cobra]

The eye has a set number of photo-sensitive cells, just like the CCD on a camera. Does this not mean it has a resolution?

[Faustus]

I dont think so. I guess you could eqate it to a megapixel number. Likely somewhere in the 80MP area I'd think.

[northcat_8]

80MP damn, mine are only 2.3MP, but I have telephoto zoom and x-ray vision

[Dr. DOS]

Went to the eye doctor on Saturday and my macro function is deteriorating more and more each year ...

[flaninacupboard]

without glasses, 640x480 :P

Flaystus, analog systems still have a resolution - how much detail can be resolved. Good way to test the eye would be with black and white lines on a sheet. set it about five metres away, and have different densities of lines. the set of lines that look grey are where your eyes' resolution drops off. Black and white squares like a chess board would work well too, not sure if the eye maybe has greater vertical than horizontal resolution - who knows?

[BJ_M]

it has been calculated to be about 74 megapixels to show detail at the limits of human visual acuity whioch corresponds to 530 pixels per inch.

[CoasterCreator]

what resolution? ,,,,after a few beers

[offline]

corresponds to 530 pixels per inch

You must have big eyes

The eye is analog, its not a resolution.

??? Resolution is the ability to see the difference between two points
in a space. Nuttin to do wit analog/digital.

Analog refers to the use of information in a continuous, rather than discrete (digital), form, so eyes aint analog either. Neitther are they digital given
the electrochemical synaptic gap.

Eyes are BIO

[BJ_M]

corresponds to 530 pixels per inch

You must have big eyes

The eye is analog, its not a resolution.

??? Resolution is the ability to see the difference between two points
in a space. Nuttin to do wit analog/digital.

Analog refers to the use of information in a continuous, rather than discrete (digital), form, so eyes aint analog either. Neitther are they digital given
the electrochemical synaptic gap.

Eyes are BIO

i got that info here http://clarkvision.com/imagedetail/eye-resolution.html

[ps2daddy]

Analog refers to the use of information in a continuous, rather than discrete (digital), form, so eyes aint analog either. Neitther are they digital given
the electrochemical synaptic gap.

Eyes are BIO

Since your eyes can see the color (which is light at a certain frequency) the electrical stimuli is transmitted from the cones and rods to the brain as frequency and not discrete representative 010111 and the such that would make it analog since we dont see in html hexidecimal codes for color.

You can also have analog electrical signal such as regular phone lines the signals are sent at a certain frequency and amplitude to generate the sound.

[hech54]

I always thought that DVD's were actually better than what most people could see anyway. Which is why I have NEVER bitched on this message board about my DVDShrink back-ups looking crappy or even "worse" than my originals....

[Doramius]

Your eyes sending images to the brain is extremely slow, thus things like slight of hand can be hidden, though they still exist. Digital is considered YES NO, ON OFF, 1 0, + -, or specific increments. There is no gray area. Our eyes can still see slight of hand, which means our eyes would be most considered analog style, but biological items are not really digital or analog. However, because it takes so long for our brains to interpret the information, only the main focus of information is interpreted. Thus again slight of hand can be hidden. The image that burns on the retina is also where you would want to figure a resolute number from, as the lens can distort a picture and the resolution still be very high for the retina. The closest people come to relation of resolution of the human retina and the signals to the brain would be somewhere around 80MP. Such a detailed picture would be able to zoom in with virtual perfect clarity that a good focus could see individual fibers of sewing thread when viewed from 1 foot in front of a human face. I'm betting I did a seach like BJ_M because I found his site and others quite similar on mine. Anybody try Clusty too?

[Capmaster]

I believe the brain is strictly analog.

[ps2daddy]

I think of it as a biological transducer
A biological system that uses electrical analog signals through nerve impulses

There are non electrical analog systems also like the ocean producing analog waves in the water too

An analog (American spelling) or analogue (English spelling) signal is any continuously variable signal. It differs from a digital signal in that small fluctuations in the signal are meaningful. Analog is usually thought of in an electrical context, however mechanical, pneumatic, hydraulic, and other systems may also use analog signals.

The word "analog" implies an analogy between cause and effect, voltage in and voltage out, current in and current out, sound in and frequency out.

An analog signal uses some property of the medium to convey the signal's information. For example, an aneroid barometer uses rotary position as the signal to convey pressure information. Electrically, the property most commonly used is voltage followed closely by frequency, current, and charge.

Any information may be conveyed by an analog signal, often such a signal is a measured response to changes in physical phenomena, such as sound, light, temperature, position, or pressure, and is achieved using a transducer.

http://www.free-definition.com/Analog.html

There are more than just computer or electrical definitions for analog and digital at least that what we were taught in physics

even though I tend to think of my farting as a digital action though its either full force or off

[Capmaster]

I think of it as a biological transducer
A biological system that uses electrical analog signals through nerve impulses

There are non electrical analog systems also like the ocean producing analog waves in the water too

An analog (American spelling) or analogue (English spelling) signal is any continuously variable signal. It differs from a digital signal in that small fluctuations in the signal are meaningful. Analog is usually thought of in an electrical context, however mechanical, pneumatic, hydraulic, and other systems may also use analog signals.

The word "analog" implies an analogy between cause and effect, voltage in and voltage out, current in and current out, sound in and frequency out.

An analog signal uses some property of the medium to convey the signal's information. For example, an aneroid barometer uses rotary position as the signal to convey pressure information. Electrically, the property most commonly used is voltage followed closely by frequency, current, and charge.

Any information may be conveyed by an analog signal, often such a signal is a measured response to changes in physical phenomena, such as sound, light, temperature, position, or pressure, and is achieved using a transducer.

http://www.free-definition.com/Analog.html

There are more than just computer or electrical definitions for analog and digital at least that what we were taught in physics

even though I tend to think of my farting as a digital action though its either full force or off

So you've never mastered sneaking out a silent one during a meeting? And it lingers under the conference table and makes it impossible to determine the source? Ahhh, the little joys of the workplace 8)

[Doramius]

I think farting is definitely analog. If it were digital, I'd make more silent ones with extreme powerful scent.

[flaninacupboard]

I always thought that DVD's were actually better than what most people could see anyway. Which is why I have NEVER bitched on this message board about my DVDShrink back-ups looking crappy or even "worse" than my originals....

You need glasses!

[glockjs]

resolution of the human eye=real. no numbers no factors just reality. i mean yeah now we have somewhat of a better idea of how our brain works but it doesnt even come close to compare to what we dont know.