Distance adaptive registration method for ultraviolet and visible light images

The invention discloses a distance adaptive registration method for ultraviolet and visible light images, which comprises the following steps of: firstly, constructing an ultraviolet and visible light image registration parameter calibration system, and acquiring ultraviolet and visible light images to be registered by using an ultraviolet and visible light dual-spectrum camera at each fixed distance; then, preprocessing ultraviolet and visible light images to be registered, and obtaining coordinates of all LEDs on the images through contour detection and circle center detection; calculating the coordinate of the ultraviolet LED on the visible light image according to the coordinate of the visible light LED, and calculating the optimal affine transformation matrix of ultraviolet and visible light registration; constructing an electric power equipment field real-time image registration system, collecting ultraviolet and visible light images of a discharge signal in an electric power equipment discharge detecti