Method and device for determining the speed of a vehicle
First Claim
Patent Images
1. A method for determining a speed of a vehicle (1), the method comprising:
- recording at least two images (A, B) of an area surrounding the vehicle in time succession using a mono-camera on the vehicle (1) wherein the mono-camera is at least partially horizontally aligned;
determining, between the images (A, B), changes (2) in a position and a size of at least one object (X) contained in the images, wherein the object (X) is fixed in relation to a sub-ground of the vehicle (1) and is at least one end of a middle line segment of a roadway marking; and
determining from the changes the speed of the vehicle (1) relative to the object (X).
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Abstract
The invention relates to a method for determining a speed of a vehicle (1), whereby at least two images (A, B) of an area surrounding the vehicle are recorded in time succession using a camera on the vehicle (1), and between the images (A, B) changes (2) in a position and/or a size of at least one object (X) contained in the images (X) are determined, and from the changes, a speed of the vehicle (1) is determined relative to the object (X).
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Citations
11 Claims
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1. A method for determining a speed of a vehicle (1), the method comprising:
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recording at least two images (A, B) of an area surrounding the vehicle in time succession using a mono-camera on the vehicle (1) wherein the mono-camera is at least partially horizontally aligned; determining, between the images (A, B), changes (2) in a position and a size of at least one object (X) contained in the images, wherein the object (X) is fixed in relation to a sub-ground of the vehicle (1) and is at least one end of a middle line segment of a roadway marking; and determining from the changes the speed of the vehicle (1) relative to the object (X). - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A device for determining a speed of vehicle, the device comprising:
a mono-camera on a vehicle (1) for recording two or more images (A,B) in time succession, wherein the mono-camera is aligned at least partially horizontally; and
an evaluation unit which is connected to the camera, wherein the evaluation unit determines, between the two or more images (A, B), changes in a position and a size of at least one object (X) contained in the images, and from the changes, the speed of the vehicle (1) relative to the object (X) can be determined;
wherein the at least one object (X) is at least one end of a middle line segment of a roadway marking.- View Dependent Claims (11)
Specification