METHOD FOR POSITION DETERMINATION
First Claim
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1. A method for determining a position of a motor vehicle, comprising:
- optically capturing at the vehicle an object having a known geographic position and distance information, with the distance information showing a relative distance to a first reference point having a known geographic position,matching the geographic position of the object with map data stored on a digital road map,optically recognizing the object at the vehicle and evaluating the distance information using optical character recognition,matching the first reference point with a second reference point represented by the map data of the digital road map, anddetermining the position of the motor vehicle when the first reference point and the second reference point correspond to the same geographic position.
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Abstract
A method for position determination, in particular of a motor vehicle, includes optically capturing an object having a known geographic position and matching the geographic position of the object with stored map data. The object may be a road sign having distance information, which is optically recognized at the vehicle. The distance information is subsequently evaluated using optical character recognition.
23 Citations
12 Claims
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1. A method for determining a position of a motor vehicle, comprising:
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optically capturing at the vehicle an object having a known geographic position and distance information, with the distance information showing a relative distance to a first reference point having a known geographic position, matching the geographic position of the object with map data stored on a digital road map, optically recognizing the object at the vehicle and evaluating the distance information using optical character recognition, matching the first reference point with a second reference point represented by the map data of the digital road map, and determining the position of the motor vehicle when the first reference point and the second reference point correspond to the same geographic position. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A driver assistance system for a motor vehicle, comprising:
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a storage medium storing data of a digital road map, an optical capture unit for capturing a capture region in front of the motor vehicle, said capture region including an object having a known geographic position and distance information, with the distance information showing a relative distance to a first reference point having a known geographic position, and an evaluation unit receiving from the optical capture unit optically captured image data, said evaluation unit configured to optically recognize the object using image recognition and evaluate the distance information using optical character recognition, match the first reference point with a second reference point represented by the map data of the digital road map, and determine a position of the motor vehicle when the first reference point and the second reference point correspond to the same geographic position. - View Dependent Claims (10)
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11. A motor vehicle comprising a driver assistance system with:
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a storage medium storing data of a digital road map, an optical capture unit for capturing a capture region in front of the motor vehicle, said capture region including an object having a known geographic position and distance information, with the distance information showing a relative distance to a first reference point having a known geographic position, and an evaluation unit receiving from the optical capture unit optically captured image data, said evaluation unit configured to optically recognize the object using image recognition and evaluate the distance information using optical character recognition, match the first reference point with a second reference point represented by the map data of the digital road map, and determine a position of the motor vehicle when the first reference point and the second reference point correspond to the same geographic position. - View Dependent Claims (12)
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Specification