Vehicle Camera Alignment for Sharp Cornering and Full FoV Use
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Solution Overview
Problem
Current vehicle camera monitor systems face challenges in maintaining high sharpness and effectively utilizing the full field of view, especially when cornering, as the camera orientation optimizes for class II FoV at the expense of class IV FoV, resulting in wasted areas and reduced sharpness in edge regions due to lens effects.
Innovation Solution
The method involves aligning the camera such that the class II FoV is positioned at the horizontal or vertical outermost area of the image sensor and monitor, allowing for panning adjustments during cornering, and incorporating a lens with uniform distortion or a panomorphic lens to ensure sharpness across the entire field of view, including class IV and V FoVs.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If the camera opening angle covers the full sensor FoV, then class II FoV sharpness is maximized, but class IV FoV and edge areas are wasted
Solution Approach 1:
The patent repositions class II FoV to the horizontal outermost area of the image sensor rather than centering it. This dimensional change allows the camera to capture class IV FoV in the central area and extends utilization to edge areas, converting previously wasted sensor regions into useful field of view coverage
Solution Approach 2:
The patent makes the camera system multi-functional by enabling it to simultaneously optimize for class II FoV (positioned at outermost area), class IV FoV (central area), and edge area utilization. The panomorphic lens supports this universal functionality by providing uniform image quality across all regions, allowing the single camera to serve multiple monitoring functions effectively
2Ease of operation
If the camera is aligned for straight road driving, then class II FoV coverage is optimal, but cornering performance and trailer visibility decrease
Solution Approach 1:
The patent repositions class II FoV to the horizontal outermost area of the image sensor, which creates space for class IV FoV to extend further to the side. This dimensional rearrangement allows the camera to maintain optimal class II coverage during straight driving while simultaneously improving side visibility of the trailer during cornering maneuvers
Solution Approach 2:
The patent enables dynamic adaptability by allowing the camera system to effectively serve multiple driving scenarios. The repositioned class II FoV at the outermost area allows the system to adapt to both straight road driving (optimal class II coverage) and cornering situations (improved trailer visibility through extended class IV FoV), making the system versatile without requiring physical camera movement
Data Source
AI summary
A method for aligning a camera of a vehicle camera monitor system (CMS) includes mounting the camera to a vehicle on one side thereof, the camera having a camera opening angle, providing the camera with at least one image sensor having an entire area of full sensor field of view (FoV), forwarding the image data recorded by the at least one image sensor to a monitor of the CMS to display an image comprising the first area to a driver of the vehicle, and aligning the camera with its camera opening angle such that the first area is at least one of arranged at the horizontal outermost position of the image captured by the image sensor of the camera or at the vertical outermost position of the image displayed on the monitor.