Method for tracking target with sudden change motion based on ALO search

The invention provides a method for tracking a target with sudden change motion based on ALO search, and is used for solving the problem that an existing moving target tracking method is not high in operating efficiency and includes many adjustment parameters. The method includes initializing target state parameters and optimization model parameters of an ALO algorithm; adopting the ALO algorism to search a candidate image block to realize target tracking; and using an output optimal candidate image block as a target image bock of an image of a current frame and target state parameters of a next frame, and performing tracking of an image of the next frame. The method for tracking a target with sudden change motion based on ALO search adopts a global optimal motion state search mechanism and less model adjustment parameters, a search mechanism based on an ant lion algorithm adopts roulette to randomly select an ant lion and an elite ant lion to jointly influence an ant walking path on the basis of ant random w