- Jul 18, 2002
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Now I am sure the human eye doesn't use pixels in all but what would be the equivelent resolution to match the human eye? Otherwise what "resoultion" does the human eye see at ?
Originally posted by: amnesiac 2.0
That's a tricky question, because of how intricate the nerology of the eye is.
The cones are mostly at the center and concentrate on colors, while the rods are mostly for peripheral vision and motion detection.
The human eye has 136 million receptors, or a rough density of 160,000 per square millimeter, on average.
However, this does not equate to a 136 megapixel resolution, as there are several rods per ganglion, while cones tend to be at a 1:1 ratio to ganglia.
So... I can't really give you a set answer, but know it's less than 136 megapixels.. probably a good deal less than 100 as well.
(Man, I *love* my bio-neuroscience course now, I feel so smart! )
Other interesting facts - at about 60 cm (typical reading distance, or for people on this board, distance from a computer screen), 1 cm is approximately equal to 1 degree, in which distance the eye could potentially resolve 150 or so seperate points, in the centre of vision.
Does that have any implications for the effective resolution of a colour-blind person's eyes?The most frequent genetic defects are in the pigments for long and medium wavelength cones (red and green) - resulting in one of the cone types having a defective pigment which may have different optical properties
Originally posted by: Mark R
There is no limit to the number of different shades percievable