Stereo camera intrusion detection system
First Claim
1. An intrusion detection system comprising:
- a first camera configured to generate first images of a monitored area;
a second camera configured to generate second images of the monitored area;
a detection device configured to compare the first images with a background image of the monitored area, the detection device marking differences between the first images and the background image as a potential intruder; and
a tracking device configured to evaluate each of the first images relative to each of the second images to determine three-dimensional characteristics associated with the potential intruder, the tracking device comprising a threshold comparator configured to allow a user of the intrusion detection system to designate at least one three-dimensional space within the monitored area, the at least one three-dimensional space being one of a threshold space and a null zone, the tracking device activating the indicator in response to one of motion into and motion toward the threshold space, and the tracking device not activating the indicator in response to differences between the first images and the background image in the null zone.
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Accused Products
Abstract
A system and method is provided for an intrusion detection system. The intrusion detection system comprises a first camera configured to acquire first visual images of a monitored area and a second camera configured to acquire second visual images of the monitored area. The intrusion detection system also comprises a detection device configured to compare the first images with a background image of the monitored area. The detection device can mark differences between the first images and the background image as a potential intruder. The intrusion detection system further comprises a tracking device configured to evaluate each of the first images relative to each of the second images to determine three-dimensional characteristics associated with the potential intruder.
98 Citations
32 Claims
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1. An intrusion detection system comprising:
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a first camera configured to generate first images of a monitored area; a second camera configured to generate second images of the monitored area; a detection device configured to compare the first images with a background image of the monitored area, the detection device marking differences between the first images and the background image as a potential intruder; and a tracking device configured to evaluate each of the first images relative to each of the second images to determine three-dimensional characteristics associated with the potential intruder, the tracking device comprising a threshold comparator configured to allow a user of the intrusion detection system to designate at least one three-dimensional space within the monitored area, the at least one three-dimensional space being one of a threshold space and a null zone, the tracking device activating the indicator in response to one of motion into and motion toward the threshold space, and the tracking device not activating the indicator in response to differences between the first images and the background image in the null zone. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 27, 28, 29)
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11. A method for detecting intruders in a monitored area, the method comprising:
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acquiring first images of the monitored area from a first camera and second images of the monitored area from a second camera; generating a first background image of the monitored area associated with the first camera and a second background image of the monitored area associated with the second camera; correlating first pixels associated with the first images with second pixels associated with the first background image of the monitored area, such that the first pixels are horizontally and vertically aligned with the second pixels; correlating third pixels associated with the second images with fourth pixels associated with the second background image of the monitored area, such that the third pixels are horizontally and vertically aligned with the fourth pixels; comparing the first images with the first background image of the monitored area and the second images with the second background image to determine the presence of a potential intruder; determining three-dimensional characteristics of the potential intruder based on a relative comparison of the first images and the second images; and activating an indicator upon the three-dimensional characteristics of the potential intruder exceeding at least one predetermined threshold. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19, 20, 30, 31)
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21. An intrusion detection system comprising:
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means for simultaneously acquiring first images and second images of a monitored area; means for continuously generating a background image of the monitored area; means for generating a plurality of filtered first images corresponding to each of the first images and a plurality of filtered background images, each of the plurality of filtered first images having a different resolution; means for detecting a potential intruder based on differences between each of the plurality of filtered first images and a corresponding one of the plurality of filtered background images having a same resolution; means for determining three-dimensional characteristics of the potential intruder based on the first images and the second images; and means for activating an indicator based on the three-dimensional characteristics of the potential intruder. - View Dependent Claims (22, 23, 24, 25, 26, 32)
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Specification