Video monitoring system for an exit
First Claim
Patent Images
1. A monitoring system, comprising:
- a monitoring device directed at a detector, the detector having a light, the monitoring device for obtaining images of the detector; and
a controller coupled to the monitoring device,wherein the controller is configured to determine that the light illuminates from an image of the light contained in the images of the detector, the controller identifying a point on a Cartesian coordinate system as a location of the light,wherein the controller is configured to form a geometrical object around the point in response to determining that the light has illuminated, the geometrical object highlighting the image of the light by highlighting pixels in the images of the detector that coincide with the geometrical object, the controller being configured to determine locations of the pixels using an equation or set of equations for the geometrical object using the point on the Cartesian coordinate system, andwherein the controller is configured to implement a video analytic in response to forming the geometrical object around the point, and wherein as part of the video analytic, the controller indicates a location in a database where the images of the detector are stored and writes an identifier to image data corresponding to the images of the detector at a time that the light has illuminated.
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Abstract
An embodiment of a video monitoring system has at least one video camera directed at a detection system for obtaining video of the detection system. The detection system has a light source. A controller is coupled to the at least one video camera. The controller is configured to determine that the light source illuminates from the video of the detection system obtained by the at least one video camera. The controller is further configured to indicate an alarm in response to determining that the light source illuminates.
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Citations
20 Claims
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1. A monitoring system, comprising:
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a monitoring device directed at a detector, the detector having a light, the monitoring device for obtaining images of the detector; and a controller coupled to the monitoring device, wherein the controller is configured to determine that the light illuminates from an image of the light contained in the images of the detector, the controller identifying a point on a Cartesian coordinate system as a location of the light, wherein the controller is configured to form a geometrical object around the point in response to determining that the light has illuminated, the geometrical object highlighting the image of the light by highlighting pixels in the images of the detector that coincide with the geometrical object, the controller being configured to determine locations of the pixels using an equation or set of equations for the geometrical object using the point on the Cartesian coordinate system, and wherein the controller is configured to implement a video analytic in response to forming the geometrical object around the point, and wherein as part of the video analytic, the controller indicates a location in a database where the images of the detector are stored and writes an identifier to image data corresponding to the images of the detector at a time that the light has illuminated. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A monitoring system, comprising:
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a monitoring device directed at a detector, the detector having a light source, the monitoring device for obtaining images of the detector; and a controller coupled to the monitoring device; wherein the controller is configured to determine that the light source illuminates from an image of the light source contained in the images of the detector, the controller identifying a point on a Cartesian coordinate system as a location of the light source; wherein the controller is configured to determine a location of the point in response to determining that the light source has illuminated by identifying a center of pixels corresponding to the light source whose brightness has changed by a certain amount as a result of the light source illuminating; and wherein the controller is configured to implement a video analytic in response to determining that the light source has illuminated, and wherein as part of the video analytic, the controller indicates a location in a database where the images of the detector are stored and writes an identifier to image data corresponding to the images of the detector at a time that the light has illuminated. - View Dependent Claims (10, 11, 12, 13, 14, 15)
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16. A method of monitoring an exit area of a facility, the exit area containing a detection system having a light, the method comprising:
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capturing images of the exit area and the detection system with at least one camera; determining that the light illuminates from an image of the light by averaging a brightness over pixels of the image to determine an average brightness, and by determining a difference between numerical values indicative of the average brightness at two different times to determine whether the difference is at least equal to a certain amount; identifying a point on a Cartesian coordinate system as a location of the light; forming a geometrical object around the point in response to determining that the light has illuminated, the geometrical object highlighting the image of the light by highlighting pixels in the images of the detector that coincide with the geometrical object; determining locations of the pixels using an equation or set of equations for the geometrical object using the point on the Cartesian coordinate system; indicating an alarm in response to determining that the light illuminates; storing a location where the images of the exit area when the alarm is indicated are stored by writing an identifier to image data corresponding to captured images of the exit area and the detection system corresponding to the alarm; and storing the identifier of the location of the captured images of the exit area and the detection system corresponding to the alarm and/or an identifier of the alarm in an alarm log, wherein the alarm log is searchable based on the identifier. - View Dependent Claims (17, 18, 19, 20)
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Specification