If we compare an eye with a digital camera, how mega pixel it would be?
2006-10-19 15:52:18 · 9 answers · asked by Ali 2 in Science & Mathematics ➔ Engineering
Well the acuity of the human eye is typically about one minute (of arc) which is to say that the human eye can visually separate two objects separated by one arc minute.
One arc minute is equal to about 2 metres at a distance of 6km....which means that the human eye could just separate (see 2 lights rather than one) the headlights on a vehicle 6km away.
So depending on your cameras field of view at maximum optical zoom. it would need enough pixels to put each headlight in separate pixel with a dark pixel in between.
So given the field of view of the camera (the horizontal distance from the left side to the right side of an image it takes of the vehicle 6km away) you can calculate how many pixels you need across the image.
In 35mm photography, a 50mm lens is called a normal lens because it produces roughly the same picture angle as the human eye (about 46°). This means the field of view is approx the same as the distance so at 6km the field of view would be 6km across.
Therefore from left to right across the camera view the camera would need 6000/0.66 (6km across divided by 0.66 metres to separate the headlights 2 metres apart with a dark pixel in between 2m divided by 3 pixels)
equals 9000 pixels across
For a square image the total area of pixels is therefore 9000x9000 =81 million..........so you need a 81 megapixel camera to equal the human eye...good question!
2006-10-19 16:58:27 · answer #1 · answered by Taoman 2 · 1⤊ 0⤋
ok the eye and the camera are completely different for starters the camera captures only an image when an eye captures a 3-D picture also megapixil-wise, a pixil is a square that captures a piece of a picture and obviously the more pixils the crisper, and detailed an images is, and since our eyes dont use pixils but just the ability to capture light of diffrent wave lengths then u cant really compare the two
If possibly we made a camera equivalent to the eye, potentially it could be a trillion pixils since we see things and process them with so much detail and tine tuning.
2006-10-19 16:05:27 · answer #2 · answered by Anonymous · 1⤊ 0⤋
well, what you seem to not understand is that mega pixels are mainly important when enlarging an image that was taken at a much smaller size. the eye is the perfect image maker as it sees 3D, you cannot compare the two.
2006-10-19 15:56:39 · answer #3 · answered by Bistro 7 · 1⤊ 0⤋
well i've read a question on here where someone asked about the chances of there being an afterlife, and the atheist response was "did you think there was a chance this wouldn't turn into a drinking game?" and the rest of the atheists proudly exclaimed they were so and also proceeded to *drink* not to say that both types of people don't continuously bash each other, but you are being a bit one sided.
2016-05-22 04:00:19 · answer #4 · answered by Marcia 4 · 0⤊ 0⤋
depends on the persons vision
me, i have -6 megapixels in my right eye and -7 in the left eye...thats bad!!
what a way to take the fun out of things! (first answe) i mean its true but still!
2006-10-19 15:56:00 · answer #5 · answered by ξℓ Çђαηφσ 7 · 0⤊ 0⤋
WE can't compare them together.because of that our eyes acts in continuos space but a camera lenses acts in discrete plane.so we can't compare them.
2006-10-19 21:55:26 · answer #6 · answered by Babak 1 · 0⤊ 0⤋
The human eye cannot be duplicated or matched!
2006-10-19 15:55:32 · answer #7 · answered by Anonymous · 0⤊ 0⤋
XXXXXXXXXX mega
2006-10-19 16:00:30 · answer #8 · answered by SMASA 2 · 1⤊ 0⤋
a lot!
2006-10-19 15:56:12 · answer #9 · answered by smarties 6 · 0⤊ 0⤋