Traffic target detection method and system based on video monitoring

The embodiment of the invention provides a traffic target detection method and system based on video monitoring, and the method comprises the steps: obtaining a monitoring video of a target traffic road section, loading the monitoring video into a trained traffic target detection network, and generating the traffic target state detection data of the target traffic road section; therefore, the traffic target iteration state of the next node of the target traffic road section can be predicted. The method comprises the following steps: acquiring a plurality of first training traffic road section monitoring videos with traffic target state labeling data and a plurality of second training traffic road section monitoring videos, performing feature extension on the second training traffic road section monitoring videos, and generating a second extension training traffic road section monitoring video containing a video context collaborative fragment; and then parameter updating is carried out on the initialized long-