Method and device for tracking multiple sports video targets based on trajectory intersection ratio

Abstract

The application provides a sports video multi-movement target tracking method and device based on trajectory intersection and union ratio, and relates to the technical field of computer vision, which comprises the following steps: determining movement targets in each video frame of a sports video and extracting appearance features; for the movement trajectory of each movement target in different video frames, calculating an intersection and union ratio matrix of a bounding box; according to the intersection and union ratio matrix and the appearance features, correlating and matching the movement trajectories in different video frames to obtain first movement targets that have been successfully correlated and matched and second movement targets that have not been successfully correlated and matched; then performing trajectory matching on edge targets in different video frames of the second movement targets, and finally generating the trajectory state of the first movement targets and the second movement targets in the sports video. The application is used to solve the problem that the long-time edge leaving behavior of frequently occurring movement targets in the existing multi-target tracking algorithm in a sports scene leads to poor completeness and continuity of the movement target tracking trajectory.

Images