Method for detecting accident
First Claim
Patent Images
1. A method for detecting an accident comprising the steps of:
- obtaining an image from a predetermined region on a road;
computing gray levels for each pixel corresponding to a predetermined line type trap from the obtained image; and
determining whether there exists an accident or not depending on change transition of the computed gray levels for a predetermined period of time.
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Abstract
Disclosed is a method for detecting an accident more swiftly and reliably. The method for detecting an accident obtains an image from a predetermined region on a road, determining whether there exists an accident or not depending on change transition of gray levels for pixels on a line type trap set in advance on the basis of the obtained image. At the moment, a real vehicle and a shadow could be discriminated with use of quantity of change and frequency of the gray levels on the line type trap.
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Citations
15 Claims
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1. A method for detecting an accident comprising the steps of:
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obtaining an image from a predetermined region on a road;
computing gray levels for each pixel corresponding to a predetermined line type trap from the obtained image; and
determining whether there exists an accident or not depending on change transition of the computed gray levels for a predetermined period of time. - View Dependent Claims (2, 3, 4, 5)
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6. A method for detecting an accident comprising the steps of:
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obtaining an image from a predetermined region on a road;
computing gray levels for each pixel corresponding to a predetermined line type trap from the obtained image;
tracking a vehicle using quantity of change for the computed gray levels; and
determining whether there exists an accident or not by tacking the gray levels for the tracked vehicle for a predetermined period of time. - View Dependent Claims (7, 8, 9, 10, 11, 12, 13, 14, 15)
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Specification