Method and device for determining a change in the pitch angle of a camera of a vehicle
First Claim
1. A method for determining a change in a pitch angle of a camera of a vehicle, comprising:
- sequentially recording at least three images, each of which includes a reproduction of a detection area in front of the vehicle, and the at least three images including at least a first image, a second image and a third image;
wherein the camera is mounted in a fixed position at the vehicle and the vehicle performs a driving motion during the sequential recording of the at least three images;
generating image data corresponding to each of the images; and
processing the image data by;
determining a first image position as a position of a first reproduction of a stationary object in the first image;
determining a second image position as a position of a second reproduction of the stationary object in the second image;
determining a course of a straight line based on at least the first image position and the second image position, the course of the straight line representing a current pitch angle of the camera;
determining a third image position as a position of a third reproduction of the stationary object in the third image, the third image position spaced apart from the course of the straight line; and
determining the change in the pitch angle of the camera from the current pitch angle of the camera based on a length of a line that extends between the third image position and a point on the straight line that is an expected position of the third reproduction of the stationary object in the third image were there no change in the pitch angle of the camera, wherein the line extends between the third image position and the point only along a Y-axis of an X- and Y-image point matrix of an image recording sensor of the camera.
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Accused Products
Abstract
A method and device determine the change in pitch angle of a camera of a vehicle. At least three images, each reproducing a detection area in front of the vehicle, are sequentially recorded and corresponding image data are generated. A position of a first reproduction of a stationary object in the first image is determined as a first image position. A position of a second reproduction of the stationary object in the second image is determined as a second image position. On the basis of at least the first image position and the second image position, the course of a straight line is determined. A position of a third reproduction of the stationary object in the third image is determined as a third image position. On the basis of the distance between the third image position and the straight line, the change in the pitch angle is determined.
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Citations
20 Claims
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1. A method for determining a change in a pitch angle of a camera of a vehicle, comprising:
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sequentially recording at least three images, each of which includes a reproduction of a detection area in front of the vehicle, and the at least three images including at least a first image, a second image and a third image; wherein the camera is mounted in a fixed position at the vehicle and the vehicle performs a driving motion during the sequential recording of the at least three images; generating image data corresponding to each of the images; and processing the image data by; determining a first image position as a position of a first reproduction of a stationary object in the first image; determining a second image position as a position of a second reproduction of the stationary object in the second image; determining a course of a straight line based on at least the first image position and the second image position, the course of the straight line representing a current pitch angle of the camera; determining a third image position as a position of a third reproduction of the stationary object in the third image, the third image position spaced apart from the course of the straight line; and determining the change in the pitch angle of the camera from the current pitch angle of the camera based on a length of a line that extends between the third image position and a point on the straight line that is an expected position of the third reproduction of the stationary object in the third image were there no change in the pitch angle of the camera, wherein the line extends between the third image position and the point only along a Y-axis of an X- and Y-image point matrix of an image recording sensor of the camera. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 19, 20)
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15. A device for determining a change in a pitch angle of a camera of a vehicle, the camera sequentially recording at least three images, each of which includes a reproduction of a detection area in front of the vehicle and generates image data corresponding to each of the images, the at least three images including at least a first image, a second image and a third image, the device comprising:
a processing unit for processing the image data and configured to; determine a first image position as a position of a first reproduction of a stationary object in the first image wherein the at least three images are sequentially recorded while the vehicle performs a driving motion and the camera is mounted in a fixed position at the vehicle; determine a second image position as a position of a second reproduction of the stationary object in the second image; determine a course of a straight line based on at least the first image position and the second image position, the course of the straight line representing a current pitch angle of the camera; determine a third image position as a position of a third reproduction of the stationary object in the third image, the third image position spaced apart from the course of the straight line; and determine the change in the pitch angle of the camera from the current pitch angle of the camera based on a length of a line that extends between the third image position and a point on the straight line that is an expected position of the third reproduction of the stationary object in the third image were there no change in the pitch angle of the camera, wherein the line extends between the third image position and the point only along a Y-axis of an X- and Y-image point matrix of an image recording sensor of the camera. - View Dependent Claims (16, 17, 18)
Specification