Distortion-removing circle center correction method and device of camera, terminal equipment and medium

The invention is suitable for the technical field of cameras, and particularly relates to a distortion-removing circle center correction method and device of a camera, terminal equipment and a medium. The method comprises the following steps: according to internal parameters and distortion parameters of a camera, performing distortion removing on original circle center coordinates through a distortion-removing model to obtain distortion-removing circle center coordinates; according to a radius of a circular ring, external parameters of the camera and the distortion-removing circle center coordinates, obtaining world coordinate matrix representation of the circular ring in a world coordinate system; projecting the world coordinate matrix representation to an image coordinate system to obtain projected image coordinate matrix representation, and determining geometric center coordinates of the image coordinate matrix representation; and correcting the original circle center coordinates according to an error betw