Video-based encroachment detection
First Claim
1. A method for video-based encroachment detection comprising:
- receiving first and second images;
modeling a background from the first image;
subtracting the background from the second image to provide a detection map;
calibrating the size of an object at different parts of the image from the pixel level;
integrating a projection of the object with the detection map using dynamic programming; and
detecting the object in a region if the projection matches that region of the detection map.
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Accused Products
Abstract
A method and system for video-based encroachment detection are provided, the method including receiving first and second images, modeling a background from the first image, subtracting the background from the second image to provide a detection map, calibrating the size of an object from the pixel level, integrating a projection of the object with the detection map using dynamic programming, and detecting the object in a region if the projection matches that region of the detection map; and the system including a processor, a background modeling unit coupled with the processor for modeling a background from the first image and subtracting the background from the second image to provide a detection map, and a dynamic programming unit coupled with the processor for calibrating the size of an object from the pixel level, integrating a projection of the object with the detection map, and detecting the object in a region if the projection matches that region of the detection map.
88 Citations
20 Claims
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1. A method for video-based encroachment detection comprising:
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receiving first and second images;
modeling a background from the first image;
subtracting the background from the second image to provide a detection map;
calibrating the size of an object at different parts of the image from the pixel level;
integrating a projection of the object with the detection map using dynamic programming; and
detecting the object in a region if the projection matches that region of the detection map. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. A system for video-based encroachment detection between first and second images comprising:
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a processor;
a background modeling unit in signal communication with the processor for modeling a background from the first image and subtracting the background from the second image to provide a detection map; and
a dynamic programming unit in signal communication with the processor for calibrating the size of an object from the pixel level, integrating a projection of the object with the detection map, and detecting the object in a region if the projection matches that region of the detection map. - View Dependent Claims (14, 15, 16)
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17. A program storage device readable by machine, tangibly embodying a program of instructions executable by the machine to perform program steps for video-based encroachment detection between first and second images, the program steps comprising:
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receiving first and second images;
modeling a background from the first image;
subtracting the background from the second image to provide a detection map;
calibrating the size of an object from the pixel level;
integrating a projection of the object with the detection map using dynamic programming; and
detecting the object in a region if the projection matches that region of the detection map. - View Dependent Claims (18, 19, 20)
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Specification