Intruding object detection device using background difference method
First Claim
1. An intruding object detection device comprising:
- a processing unit for correcting a deviation between a first image and a second image and for detecting an intruding object, on the basis of the difference between the first and second images from which the deviation has been corrected, wherein the first image is to be a reference image and the second image is different from the second image.
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Accused Products
Abstract
In an intruding object detection device which performs a background difference process, the following processings are carried out in order to increase the precision in detecting an object. A region where there is high possibility that an intruding object exists is detected from a reference image and an image (in this case, an image to be corrected) captured by a camera in a background difference process. Errors such as a deviation in the image-capturing position between the reference image and the captured image are corrected by affine transformation. The amount of deviation is calculated while excluding the region where there is high possibility that an intruding object exists. This enables appropriate deviation correction, thereby enhancing high precision in detecting an object.
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Citations
10 Claims
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1. An intruding object detection device comprising:
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a processing unit for correcting a deviation between a first image and a second image and for detecting an intruding object, on the basis of the difference between the first and second images from which the deviation has been corrected, wherein the first image is to be a reference image and the second image is different from the second image. - View Dependent Claims (2, 3, 4)
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5. An intruding object detection method comprising the steps of:
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(a) acquiring a reference image;
(b) acquiring an image different from said reference image;
(c) detecting a deviation between said reference image and the image different from said reference image; and
(d) detecting an intruding object from said reference image and the image different from said reference image by taking said detected deviation into consideration. - View Dependent Claims (6, 7, 8)
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9. An intruding object detecting program product for making a computer execute the steps of:
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acquiring a reference image;
acquiring an image different from said reference image;
detecting a deviation between said reference image and the image different from said reference image; and
detecting an intruding object from said reference image and the image different from said reference image by taking said detected deviation into consideration.
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10. A computer readable recording medium storing an intruding object detection program for making a computer execute the steps of:
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acquiring a reference image;
acquiring an image different from said reference image;
detecting a deviation between said reference image and the image different from said reference image; and
detecting an intruding object from said reference image and the image different from said reference image by taking said detected deviation into consideration.
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Specification