Patent ID: 11882542
Assignee: NEC CORPORATION
Field: Audio-visual technology (Electrical engineering)
Classification: CPC G  H  B | IPC G  H

Claim 9:
10. A tracking method to be executed in a monitoring device, the tracking method comprising:
acquiring position information of an object to be tracked, the position information including a first position information acquired at a first timing and second position information acquired at a second timing later than the first timing, the first position information indicating a first position, and the second position information indicating a second position;
estimating a third position of the object to be tracked displayed in an image captured of a predetermined region;
generating path information of the object to be tracked by supplementing, based on the third position of the object to be tracked, a fourth position of the object to be tracked held between the first position; and
limiting a region in which the third position of the object to be tracked is estimated to fall by use of the position information of the object to be tracked if the object to be tracked fails to be displayed in the image for a predetermined period.