Method for seeking discharge regions of power devices on ultraviolet images

The invention discloses a method for seeking discharge regions of power devices on ultraviolet images, which comprises the following steps: firstly collecting the ultraviolet images, carrying out pretreatment on the ultraviolet images, further detecting corona regions on the ultraviolet images by treating visible light images stacked together on the collected ultraviolet images, initially detecting the discharge regions, and then removing the interferences of a plurality of backgrounds according to the features of the corona regions for each ultraviolet image; determining whether the devices in the region discharge or not by using a plurality of frames of images for tracking; and the method can simultaneously track a plurality of discharge regions on each image. The method can carry out analysis and diagnosis on the collected images in a real-time on-line manner under the airborne real-time detection requirement in a helicopter patrol inspection system, and determine whether a power transmission line has defects or not; furthermore, the method is characterized by improving the efficiency of line inspection and improving the accuracy of defect diagnosis.