The sharpness number is an important parameter to measure the merits of the camera. It refers to the maximum number of lines that can be seen on the monitor (which should be higher than the resolution of the camera) when the camera takes equally spaced black and white lines. When you exceed this number of lines, you can only see a gray screen on the screen and can no longer distinguish between black and white lines.
The resolution of industrial surveillance cameras is usually between 380 and 460 lines, and the resolution of broadcast cameras can reach about 700 lines. Sharpness is determined by the number of pixels of the imaging device. Obviously, the more pixels there are in the imaging device, the clearer the resulting image, and vice versa. The higher the sharpness, the higher the camera grade, and vice versa.
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