Infrared image insulator rod core extraction method based on skeleton extraction and shortest path

The invention discloses an infrared image insulator rod core extraction method based on skeleton extraction and a shortest path, and belongs to the technical field of electric power intelligent inspection, and the method comprises the steps: carrying out the skeleton extraction of an insulator mask, and obtaining an insulator skeleton; using a head and tail disc center point search algorithm to find the center points of the head and tail insulator discs in the insulator skeleton as the initial point of rod core path retrieval; using an improved A * algorithm to search the shortest path between the initial points of the rod core path retrieval as a main body insulator rod core wire; and connecting the main body insulator rod core wire with the middle point of the short side of the detection frame to form a final insulator rod core wire. Compared with the prior art, the method has the beneficial effects of more accurate insulator rod core fitting, high calculation speed, adaptability to insulator detection unde