METHOD FOR MOVING OBJECT DETECTION USING AN IMAGE SENSOR AND STRUCTURED LIGHT
First Claim
1. A system for monitoring a portal or passageway and objects moving through it, comprising:
- an imaging means and a light source, the imaging means and light source together creating a three-dimensional image of a scene in the portal or passageway which defines a target volume through which movement of an object is tracked by the imaging means; and
,a processor to which information from the imaging means relating to movement of objects through the target volume is supplied, the processor executing an algorithm using the supplied information so to classify the movement through the portal or passageway and provide an indication thereof.
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Abstract
A method for detecting moving objects including people. Enhanced monitoring, safety and security is provided through the use of a monocular camera and a structured light source, by trajectory computation, velocity computation, or counting of people and other objects passing through a laser plane arranged perpendicular to the ground, and which can be setup anywhere near a portal, a hallway or other open area. Enhanced security is provided for portals such as revolving doors, mantraps, swing doors, sliding doors, etc., using the monocular camera and structured light source to detect and, optionally, prevent access violations such as “piggybacking” and “tailgating”.
65 Citations
25 Claims
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1. A system for monitoring a portal or passageway and objects moving through it, comprising:
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an imaging means and a light source, the imaging means and light source together creating a three-dimensional image of a scene in the portal or passageway which defines a target volume through which movement of an object is tracked by the imaging means; and
,a processor to which information from the imaging means relating to movement of objects through the target volume is supplied, the processor executing an algorithm using the supplied information so to classify the movement through the portal or passageway and provide an indication thereof. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25)
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Specification