METHOD FOR DETECTING VEHICLE-TO-VEHICLE DISTANCE AND SYSTEM THEREOF
First Claim
1. A method for detecting a vehicle-to-vehicle distance, applied in a first vehicle, for obtaining a distance between the first vehicle and a second vehicle, the method comprising:
- focusing on the second vehicle;
capturing an image of the second vehicle after the focusing;
analyzing the captured image to obtain at least one main feature in the image;
determining whether the image is a vehicle license plate according to the main feature;
calculating a focusing distance to the second vehicle after the focusing when the image is the vehicle license plate; and
outputting the calculated focusing distance as the vehicle-to-vehicle distance.
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Abstract
A method for detecting a vehicle-to-vehicle distance and a system thereof are applied in a first vehicle for detecting a distance between the first vehicle and a second vehicle. The method includes focusing on the second vehicle; capturing an image of the second vehicle after the focusing; analyzing the captured image to obtain at least one main feature in the image; determining whether the image is a vehicle license plate according to the main feature; calculating a focusing distance to the second vehicle after the focusing when the image is the vehicle license plate; outputting the calculated focusing distance as the vehicle-to-vehicle distance. A low-cost and reliable dynamic vehicle alarm and protection system can be realized based on the method for detecting a vehicle-to-vehicle distance.
70 Citations
10 Claims
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1. A method for detecting a vehicle-to-vehicle distance, applied in a first vehicle, for obtaining a distance between the first vehicle and a second vehicle, the method comprising:
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focusing on the second vehicle; capturing an image of the second vehicle after the focusing; analyzing the captured image to obtain at least one main feature in the image; determining whether the image is a vehicle license plate according to the main feature; calculating a focusing distance to the second vehicle after the focusing when the image is the vehicle license plate; and outputting the calculated focusing distance as the vehicle-to-vehicle distance. - View Dependent Claims (2, 3, 4, 5)
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6. A system for detecting a vehicle-to-vehicle distance, applied in a first vehicle, for obtaining a distance between the first vehicle and a second vehicle, the system comprising:
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an image pickup device, embedded on a surface of the first vehicle, for capturing an image of the second vehicle after focusing, and transmitting the image and a focusing distance of the second vehicle after the focusing; and an image recognition device, electrically connected to the image pickup device, for analyzing at least one main feature in the captured image after receiving the image and the focusing distance, determining whether the image is a vehicle license plate according to the at least one main feature, and using the focusing distance as the vehicle-to-vehicle distance when the image is the vehicle license plate. - View Dependent Claims (7, 8, 9, 10)
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Specification