Target tracking method, device, system and non-transitory computer readable storage medium

A target tracking device, comprising one or more processors configured to:

• determine an area where a current target is located, by performing target detection on a current frame image;
• extract a current position information of the area where the current target is located;
• predict a position information of an area where each historical target is located at a moment of the current frame image, based on historical position information of an area where each historical target is located on one or more historical frame images;
• determine a historical target that is the same target as the current target, based on a position difference between the current position information and the predicted position information, and tracking the current target;
• extract a current feature vector of the area where the current target is located on the current frame image;
• obtain a historical feature vector of the area where each historical target is located on one or more historical frame images;
• and
• determine a feature difference between the current target and the each historical target, based on the current feature vector and each historical feature vector;
• wherein the determining a historical target that is the same target as the current target comprises:
• determine the historical target that is the same target as the current target, based on the feature difference and the position difference.