Monitor the camera noise problem! !

Noise mainly refers to the rough part of the image produced when CCD(CMOS) receives and outputs light as the received signal, because both CCD and CMOS photosensitive elements have the problem of hot pixels. If the temperature of the machine rises and the noise signal is too strong, it will form mottled spots on the screen where it should not appear. These points are what we call noise. There are two ways to reduce noise. On the one hand, choose a CCD with good low illumination performance, such as Sony Super Had ⅱ CCD, which has high definition. On the other hand, use software to eliminate the noise in DSP, such as the color noise elimination technology of Digital China Anbang.