High-temperature metal part surface pattern shooting system and method

The invention relates to a high-temperature metal part surface pattern shooting system. The system comprises a specific wavelength filtering optical module; a picture acquisition module; the picture acquisition module comprises a camera sensor module; the specific wavelength filtering optical module is optically coupled with the camera sensor module; and an image signal processing module. The invention further relates to a high-temperature metal part surface pattern shooting method. The method comprises the steps that a trigger signal is sent out; an acquisition control signal, a denoising control signal, a high photosensitive gain control signal and an image signal processing control signal are sent out; shooting a frame of analog image signal; performing denoising operation on the analog image signal; performing high photosensitive gain operation to obtain a denoised and gained analog electric signal, and performing digital-to-analog conversion and digital gain to obtain an image electric signal; and conver