Method and apparatus for tracking target profile in video

An apparatus for tracking a target profile in a video, comprising:

• at least one processor;
• and
• a memory storing instructions, the instructions when executed by the at least one processor, cause the at least one processor to perform operations, the operations comprising:
• determining position information of corner points of the target profile and parameter information of a first edge formed by adjacent corner points in a previous image frame adjacent to a current image frame of the target video, the first edge being an edge of the target profile in the previous image frame;
• tracking the corner points of the target profile in the previous image frame to acquire position information of the corner points of the target profile in the current image frame to determine parameter information of a second edge, the second edge being an edge formed by adjacent corner points of the target profile in the current image frame;
• predicting for parameter information of the first edge in the previous image frame to acquire predicted parameter information, and generate a plurality of candidate target profiles based on the predicted parameter information, in response to determining that a similarity between the first edge and a second edge corresponding to the first edge being less than a first preset threshold;
• and
• determining a final position of the target profile in the current image frame based on image features of the candidate target profiles.

A non-transitory computer medium, storing a computer program, the computer program, when executed by a processor, causes the processor to perform operations, the operations comprising:

• determining position information of corner points of the target profile and parameter information of a first edge formed by adjacent corner points in a previous image frame adjacent to a current image frame of the target video, the first edge being an edge of the target profile in the previous image frame;
• tracking the corner points of the target profile in the previous image frame to acquire position information of the corner points of the target profile in the current image frame to determine parameter information of a second edge, the second edge being an edge formed by adjacent corner points of the target profile in the current image frame;
• predicting for parameter information of the first edge in the previous image frame to acquire predicted parameter information, and generating a plurality of candidate target profiles based on the predicted parameter information, in response to determining that a similarity between the first edge and a second edge corresponding to the first edge being less than a first preset threshold;
• and
• determining a final position of the target profile in the current image frame based on image features of the candidate target profiles.