Delay measurement device and method for image fusion system

The embodiment of the invention, which belongs to the field of optoelectronics, provides a delay measurement device and method for an image fusion system. The device is composed of a multi-band lightsource, a chopper, a first camera, a second camera, and a processor. The first camera and the second camera are the same cameras. Two different reference points are set on the chopper to control the two same cameras to shoot a chopper entity and a chopper displayed on the image fusion system simultaneously; in a same coordinate system, an included angle between a first connection line between tworeference points on the image captured by one of the cameras and a second connection line between two reference points on a corresponding image collected by the other camera at the same time is calculated; and then the time delay of a to-be-measured image fusion system is measured quickly and accurately based on the included angle and the rotation speed of the chopper. 本发明实施例提供种用于图像融合系统的延时测量设备及方法，属于光电领域。所述设备包括：多波段光源、斩波器、第相