OVERTAKING VEHICLE WARNING SYSTEM AND OVERTAKING VEHICLE WARNING METHOD
First Claim
1. An overtaking vehicle warning system comprising:
- an image photographing unit attached to a front of a vehicle to photograph an object in a forward direction of the vehicle;
a driving unit receiving image data from the image photographing unit to select a region of interest, extracting a feature of a vertical edge from the region of interest to compare the feature of the vertical edge with a feature of a previous frame, and generating warning generating signal when a matched feature is equal to or greater than a threshold value; and
a warning unit receiving the warning generating signal to generate an overtaking vehicle warning signal.
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Accused Products
Abstract
An overtaking vehicle warning system includes an image photographing unit attached to a front of a vehicle to photograph an object in a forward direction of the vehicle; a driving unit receiving image data from the image photographing unit to select a region of interest, extracting a feature of a vertical edge from the region of interest to compare the feature of the vertical edge with a feature of a previous frame, and generating warning generating signal when a matched feature is equal to or greater than a threshold value; and a warning unit receiving the warning generating signal to generate an overtaking vehicle warning signal. An edge region is searched from an image photographed in the forward direction to obtain a predetermined feature, and warning is generated with respect to the overtaking vehicle by tracking a vehicle having the corresponding feature.
31 Citations
15 Claims
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1. An overtaking vehicle warning system comprising:
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an image photographing unit attached to a front of a vehicle to photograph an object in a forward direction of the vehicle; a driving unit receiving image data from the image photographing unit to select a region of interest, extracting a feature of a vertical edge from the region of interest to compare the feature of the vertical edge with a feature of a previous frame, and generating warning generating signal when a matched feature is equal to or greater than a threshold value; and a warning unit receiving the warning generating signal to generate an overtaking vehicle warning signal. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. An overtaking vehicle warning method comprising:
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generating image data by photographing an object in a forward direction of a vehicle; receiving the image data to select a region of interest, and extracting a feature of an vertical edge from the region of interest; tracking features of candidate vehicles in a current frame by comparing the feature of the vertical edge with a feature of a previous frame; and counting the number of features of the candidate vehicles in a plurality of previous frames having a direction equal to a running direction of the vehicle, and generating a warning generating signal when the number of features of the candidate vehicles is equal to or greater than a threshold value. - View Dependent Claims (11, 12, 13, 14, 15)
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Specification