Pedestrian Tracking Method and Electronic Device

An electronic device for tracking a pedestrian, comprising:

• a memory comprising instructions;
• and
• one or more processors in communication with the memory and configured to execute the instructions to:
• obtain, within a detection period, an upper body detection box of a to-be-tracked pedestrian appearing in a to-be-detected video;
• obtain a detection period body box of the to-be-tracked pedestrian based on the upper body detection box;
• obtain, within a tracking period, an upper body tracking box of the to-be-tracked pedestrian appearing in a to-be-tracked video;
• obtain, based on the detection period body box, a tracking period body box corresponding to the upper body tracking box;
• and
• track, using the tracking period body box, the to-be-tracked pedestrian.

The electronic device according to 12, wherein the one or more processors are further configured to:

• obtain a target image frame sequence of the to-be-detected video, wherein the target image frame sequence comprises one or more consecutive image frames, and wherein the target image frame sequence is before the detection period;
• obtain a background area of the to-be-detected video based on the target image frame sequence;
• obtain a foreground area of any image frame of the to-be-detected video by subtracting the background area from the image frame of the to-be-detected video within the detection period;
• and
• obtain the to-be-tracked pedestrian by detecting the foreground area of the image frame of the to-be-detected video.

A computer program product comprising computer-executable instructions for tracking a pedestrian, that, when executed by one or more processors of an electronic device, cause the one or more processors to:

• obtain, within a detection period, an upper body detection box of a to-be-tracked pedestrian appearing in a to-be-detected video;
• obtain a detection period body box of the to-be-tracked pedestrian based on the upper body detection box;
• obtain, within a tracking period, an upper body tracking box of the to-be-tracked pedestrian appearing in a to-be-tracked video;
• obtain, based on the detection period body box, a tracking period body box corresponding to the upper body tracking box;
• and
• track, using the tracking period body box, the to-be-tracked pedestrian.

A pedestrian tracking method, comprising:

• obtaining, within a detection period, an upper body detection box of a to-be-tracked pedestrian appearing in a to-be-detected video and a body detection box of the to-be-tracked pedestrian appearing in the to-be-detected video;
• obtaining, within a tracking period, an upper body tracking box of the to-be-tracked pedestrian appearing in a to-be-tracked video;
• obtaining, based on upper body tracking box and a relationship between the upper body detection box and the body detection box, a body tracking box corresponding to the upper body tracking box;
• and
• tracking the to-be-tracked pedestrian using the body tracking box.

An electronic device for tracking pedestrian, comprising:

• an interface;
• and
• one or more processors in communication with the interface and configured to execute an instructions to:
• obtain within a detection period, an upper body detection box of a to-be-tracked pedestrian appearing in a to-be-detected video and a body detection box of the to-be-tracked pedestrian appearing in a to-be-detected video;
• obtain within a tracking period, an upper body tracking box of the to-be-tracked pedestrian appearing in a to-be-tracked video;
• obtain based on upper body tracking box and a relationship between the upper body detection box and the body detection box, a body tracking box corresponding to the upper body tracking box;
• and
• track the to-be-tracked pedestrian using the body tracking box.