Abstract:For precise measurement of the wire de-icing jump of transmission line during winter icing, A research method for photogrammetry of wire overhanging surface based on big data was researched, and the high-speed photographic performance and main algorithms based on this technical solution were discussed, as well as the preparation method of the portable deicing jumping photogrammeter. According to the photogrammetric mathematical model and data acquisition model of the overhanging surface when the wire was de-iced and jumped, the combing region continuous determination method of the effective frames of the data was used to effectively comb the data and obtain valid data. The experimental results show that the photogrammetry method based on big data learns and trains the method proposed in this paper through a large amount of data. The accuracy of the photogrammetry on the overhang surface obtained by the high-speed photogrammetry method is basically equivalent to the spatial resolution of the image on the overhang surface. It can well capture the galloping condition of the wire under the de-icing jump. It can be applied well to the high-speed image acquisition of random short-term sudden events such as the wire de-icing jump and lightning strike.