Vehicle Camera Pitch Calibration Using Image Reference Detection
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Solution Overview
Problem
Current vehicle manufacturing methods rely on external sensors and physical measurements to determine camera pitch angles, which is inefficient and may require additional equipment.
Innovation Solution
A method and system that utilize a camera to capture an image of a stationary reference point, process the image to detect the reference's center, and adjust the camera's orientation based on pixel position to achieve the desired pitch angle without external sensors.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If external sensors and physical measurement equipment are used to determine camera pitch angle, then measurement precision is improved, but device complexity and manufacturing cost increase
Solution Approach 1:
The camera system performs self-measurement of its pitch angle by capturing an image of a reference point and processing the image data internally. The controller uses the camera's own sensor data (pixel position of the reference point) to calculate the pitch angle, eliminating the need for external measurement equipment and sensors.
Solution Approach 2:
The patent replaces mechanical measurement systems (laser scanners, coordinate measurement machines, external sensors) with an optical/electronic system. The camera captures light from a reference point, and the controller processes the image data to determine pitch angle, substituting physical measurement mechanisms with digital image processing.
2Manufacturing precision
If physical measurement methods using laser scans and coordinate measurement machines are used, then manufacturing precision is improved, but productivity decreases due to additional equipment and time requirements
Solution Approach 1:
The camera system autonomously determines its own pitch angle by capturing an image of a reference point and processing the image data internally. The controller uses the camera's own sensor data (pixel position of the reference point) to calculate the pitch angle, eliminating the need for external measurement equipment and sensors.
Solution Approach 2:
The patent extracts the pitch angle determination function from the external measurement system and integrates it into the camera system itself. By taking out the dependency on external equipment and embedding the measurement capability within the camera-controller system, the process becomes faster and more efficient.
3Reliability
If external sensors and markers are used for pitch angle determination, then measurement reliability is improved, but device complexity and cost increase
Solution Approach 1:
The camera system performs self-measurement of its pitch angle by capturing an image of a reference point and processing the image data internally. The controller uses the camera's own sensor data (pixel position of the reference point) to calculate the pitch angle, eliminating the need for external measurement equipment and sensors.
Data Source
AI summary
A method for determining the pitch angle of a camera in a vehicle includes importing the image from the camera into a controller and determining the center of the point of reference in the image. The center of the point of reference in the image has a pixel position. The method includes converting the pixel position into a determined pitch angle of the camera. The method includes determining whether the determined pitch angle of the camera is equal to a predetermined pitch angle. The method includes rotating the camera relative to the vehicle body until the determined pitch angle is equal to the predetermined pitch angle in response to determining that the determined pitch angle of the camera is not equal to the predetermined pitch angle.