Patent 7646401 was granted and assigned to ObjectVideo on January, 2010 by the United States Patent and Trademark Office.
A passback direction for a video monitored area may be defined. Video collected from the video monitored area may be accessed. Video collected from a video monitored area may be analyzed based on a passback direction of the video monitored area to detect any passback events in the video monitored area. An action based on the detected passback events may be initiated.