Infrared video acquisition system and display system are designed. The video acquisition system is suitable for infrared detectors with no more than 4 channels of readout circuitry. The video display system is compatible with the old AV/S-Video interface. It is also suitable for computer system video graphics array（ VGA）analog video interface and high definition multimedia interface（ HDMI） digital high-definition video interface display terminal equipment. The hardware circuit for collecting video signal and outputting through the corresponding video interface includes a signal amplifying circuit

an analog-to-digital conversion circuit

a video information buffer circuit

a video display digital-to-analog conversion circuit

an interface hardware circuit

etc

and realizes the digitization of image information collection and the simulation of the image information display

build VGA

AV/S-Video

HDMI timing through the field programmable gate array（ FPGA） by the hardware description language to complete the display of the corresponding terminal device.