Method for calibrating vehicle headlights
AssigneeMercedes-Benz Group AG
InventorSinan YARGELDI
Life of this patent
Estimating the term…
Abstract
Vehicle headlights are calibrated by identifying a misalignment of a predefined light distribution by analyzing images from at least one vehicle camera. In a first step, at least three recordings are preformed, which include a first recording with recording of a calibration pattern, a second recording without calibration pattern, and a third recording with recording of the inverse calibration pattern. In a second step the second recording is subtracted from the first and third recordings to clean the recordings from a present scene.
Claims7
1-6. (canceled)
A method for calibrating vehicle headlights of a vehicle, the method comprising:
- performing, using at least one vehicle camera of the vehicle, a first step comprising capturing a first recording of a light distribution of the vehicle headlights containing a calibration pattern, capturing a second recording of the light distribution of the vehicle headlights without the calibration pattern, and capturing a third recording of the light distribution of the vehicle headlights with an inverse of the calibration pattern, wherein the calibration pattern comprises circles, wherein a position of the circles in the first recording is known in advance, and wherein centers of the circles are arranged on horizontal lines;
- performing a second step comprising subtracting the second recording from the first and third recordings to clean the first and third recordings from a scene in the captured first, second, and third recordings;
- calculating, by a straight line approximation, a center of each of the circles;
- determining, based on the straight line approximation, that a surface on which the light distribution of the vehicle headlights are projected is a suitable surface for the calibration of the vehicle headlights;
- and
- calibrating, responsive to determining that the surface is a suitable surface for the calibration, the vehicle headlights.
Dependencies are inferred from the claim text.