Intelligent extraction and identification method for personnel tracks in environments with different visibility

The invention discloses an intelligent extraction and identification method for personnel trajectories in environments with different visibility. The method comprises the following steps: obtaining a target feature map of port operation personnel; performing position coding and splicing on the target feature map, and inputting the target feature map into an encoder to obtain global feature information of the port operation personnel; inputting the global feature information into a decoder for processing, and obtaining a position detection value of the port operator based on bipartite graph matching; obtaining a position prediction value of the port operator by using Kalman filtering; and performing cascade matching on the position detection value and the position prediction value, and performing secondary matching on the position detection value and the position prediction value which fail in cascade matching based on a Hungary algorithm to obtain a final trajectory of the port worker. The method has good rob