Video tripwire

US6696945B1 · kind B1 · utility

Assignee

• DiamondBack Vision, Inc. · US

Inventors

• Peter L. Venetianer · McLean, US
• Mark Allmen · Morrison, US
• Paul C. Brewer · Arlington, US
• Andrew J. Chosak · Arlington, US
• John Clark · Leesburg, US
• Matthew F. Frazier · New York, US
• Niels Haering · Reston, US
• Tasuki Hirata · Ashburn, US
• Caspar Horne · Beaverton, US
• Alan J. Lipton · Herndon, US
• William Severson · Littleton, US
• James S. Sfekas · Seattle, US
• Thomas E. Slowe · Middleburg, US
• Thomas M. Strat · Oakton, US
• John F. Tilki · Reston, US
• Zhong Zhang · Herndon, US

Key dates

• Filing date: Oct 9, 2001
• Grant date: Feb 24, 2004
• Expiry date: Feb 16, 2022

Classification

• Technology area (CPC G): Physics
• CPC primary: G08B13/1968
• WIPO field: Control
• WIPO sector: Instruments

Abstract

A method for implementing a video tripwire includes steps of calibrating a sensing device to determine sensing device parameters for use by the system; initializing the system, including entering at least one virtual tripwire; obtaining data from the sensing device; analyzing the data obtained from the sensing device to determine if the at least one virtual tripwire has been crossed; and triggering a response to a virtual tripwire crossing.