The resolution ability of human eyes to screen pixels

The smallest pixel that human eyes can recognize should be 0.3 angular minutes. The human eye has more than 65.438+29.6 million pixels.

As early as 1894, Arthur K. nig, a German doctor, put forward a more accurate answer in a book. Because the human eye has different resolutions for different colors under different intensities of illumination, he adopted a standardized experimental method: under normal illumination conditions, the angles between two parallel lines with the smallest distance that people can distinguish and the center of the pupil were tested. The measurement result is 0.59 minutes (1 = 60 minutes). In other words, the smallest pixel that human eyes can recognize should be 0.3 angular minutes.

In this way, according to the inference of Dr. Roger Clarke, a science writer, researcher and photographer, the number of pixels in the human visual center (assuming a 90 × 90 area) has reached 324 million; If the central visual field of a person is 120, then the number of pixels is 576 million. According to the algorithm, the visual field of normal people is about 180, which means that the human eye has more than12.96 million pixels.