Patent ID: 8345101

Claim:
A method for automatically calibrating one or more regions of interest for video surveillance, comprising the steps of: at a user-defined frequency, determining if one or more regions of interest are present within a field of view of a camera via: performing motion detection on a video image; tracking one or more foreground moving objects in the video image; extracting one or more features from the one or more foreground moving objects; generating a spatiotemporal heat map for the camera field-of-view based on the one or more extracted features, with values in the heat map representing motion probabilities at corresponding image locations to produce a temporal sequence order between multiple high motion interest regions; and temporally matching one or more visual activities from the video image based on the heat map and one or more recorded activities received from a source independent of the video image; if one or more regions of interest are present within the field of view of the camera, automatically calibrating the one or more regions of interest within the field of view of the camera by positioning the one or more regions of interest within the field of view of the camera; and if one or more regions of interest are not present within the field of view of the camera, sending an alert to a user to assess status of the camera.