METHODS AND SYSTEMS FOR REDUCING A RISK OF SPREAD OF DISEASE AMONG PEOPLE IN A SPACE

摘要

Methods and systems for location tracking or maintaining a count of people in a building or space. An illustrative method may include storing a background image of a field of view of a video camera and receiving a video stream from the video camera. Background subtraction may be performed to identify one or more blobs in the field of view of the video camera. The size of the one or more blobs may be compared to an expected size of the blob at a similar distance from the camera. When the size of the blob is greater than the expected size of a person at the determined distance of the corresponding blob by more than a predetermined threshold the blob may be counted as two or more people.