Patent ID: 11948312
Assignee: NEC CORPORATION
Field: Computer technology (Electrical engineering)
Classification: CPC G | IPC G

Claim 6:
7. An object detection/tracking method comprising:
acquiring, by a processor, a video;
tracking, by the processor, a plurality of first objects in the video;
detecting, by the processor, a plurality of second objects in the video;
in each of a plurality of images of the video in which a tracking time of one of the first objects has been tracked is the same as a detection time when one of the second objects has been detected, associating, by the processor, the one of the second objects with the one of the first objects;
in at least one of the plurality of images acquired after the detection time of the one of the second objects that has been associated with one of the first objects, correcting, by the processor, a position of the one of the first objects by using the position of the one of the second objects in the plurality of images in which the one of the second objects was detected at the detection time;
generating, by the processor, an appearance model representing an appearance visual feature of each of the first objects;
searching, by the processor, for an area similar to the appearance model in the plurality of images of the acquired video;
performing, by the processor, new object addition processing in which one of the second objects that has not been associated with one of the first objects is added as a new one of the first objects and is to be tracked;
calculating, by the processor, a predicted position of the one of the second objects in an image of a newly acquired video based on the position of the one of the first objects, in response to a difference between the position of the one of the first objects and the position of the one of the second objects associated with the one of the second objects in a preceding image being equal to or less than a threshold; and
calculating, by the processor, the predicted position of the one of the second objects in the image of the newly acquired video based on the position of the one of the second objects, in response to the difference being larger than the threshold.