METHOD FOR DETECTING VEHICLE-TO-VEHICLE DISTANCE AND SYSTEM THEREOF
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United States of America Patent
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Issued Date -
Apr 8, 2010
app pub date -
Mar 20, 2009
filing date -
Oct 8, 2008
priority date (Note) -
Abandoned
status (Latency Note)
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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.
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