Dynamic tracking comparison defect discrimination method and system for vehicle pantograph

The invention discloses a dynamic tracking comparison defect discrimination method and system for a vehicle pantograph. The method comprises the following steps: performing filing management on a to-be-identified vehicle pantograph picture according to additional information of the to-be-identified vehicle pantograph picture; searching a corresponding pantograph reference picture from archiving management; extracting a corresponding pantograph region image from the reference picture and the pantograph picture of the vehicle to be identified by adopting a deep learning network; performing alignment processing on the pantograph region image by adopting a forward accumulation method; extracting two small regions from the aligned pantograph region by using a synchronous sliding window method, and calculating Pearson product-moment correlation coefficients and structural similarity coefficients of the two small regions; positioning a pantograph defect area in combination with the Pearson product-moment correlation