Icing Detection Using Image-based 3D Shape Recovery

Abstract

Power transmission lines are at risk of the damage when they are exposed to severe ice loads. The accurate detection of ice can reduce the risk to allow ice melting resources to be applied efficiently. Existing methods of the ice detection mainly use the indirect measurement. The ice shape cannot be detected. This paper introduces a new image- based method to detect the ice shape when the ice grows on conductors. The method integrates the technique of camera calibration, image acquisition and 3D shape recovery. It solves the problem of ice detection on severe environments. Experiments show that the proposed method can improve the power system safety significantly.