Wednesday, May 02, 2012

your eye a Super CAMERA??





Do you know that your eye is 576 mega pixels........
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 actu...ally do not perceive that many pixels, but your eye moves around the scene to see all the detailyou 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 requireeven more megapixels. This kind of image detail requires A large format camera to record.
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