Augmented Trailer View Using Dynamic Projection Matrix
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Solution Overview
Problem
Existing systems for presenting a virtual view of a scene when a vehicle is towing a trailer fail to effectively eliminate blind spots, especially in non-straight driving conditions, as they do not adequately account for the trailer's presence in all driving scenarios.
Innovation Solution
A method and system that determine the angle of the trailer relative to the vehicle, generate a simulated trailer based on its dimensions, and calculate a projection matrix to combine image data from both vehicle and trailer cameras, excluding the trailer from the scene and adjusting the view dynamically based on the angle to reduce blind spots.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If image data from vehicle and trailer cameras are combined to provide a virtual view of the scene behind the vehicle, then the scene is presented as if the trailer were invisible when driving in a straight line, but blind spots occur when the vehicle is driving in a non-straight manner
Solution Approach 1:
The system dynamically adjusts the projection matrix based on the real-time angle between the vehicle and trailer. When the trailer angle exceeds a threshold, the system switches to an augmented view that accounts for the trailer's position, ensuring continuous visibility adaptation to changing driving conditions
Solution Approach 2:
The system changes the projection parameters based on the trailer angle. By calculating a dynamic projection matrix that incorporates the trailer's angular position relative to the vehicle, the system transforms the camera images to eliminate blind spots caused by trailer sway or turning
2Device complexity
If a static projection matrix is used to combine camera images, then the system is simple to implement, but blind spots occur in non-straight driving conditions
Solution Approach 1:
The system transitions from a static to a dynamic projection matrix that is recalculated based on the real-time trailer angle, ensuring the projection accurately reflects the actual spatial relationship between vehicle and trailer in all driving conditions
Data Source
AI summary
Methods and systems are provided for displaying a scene for a vehicle towing a trailer. A method includes: determining, by the processor, an angle of the trailer relative to the vehicle; determining, by the processor, a simulated trailer based on the angle of the trailer; determining, by the processor, a projection matrix based on the simulated trailer; generating, by the processor, scene data based on image data from a camera of the vehicle and image data from a camera of the trailer using the projection matrix; and generating, by the processor, display data to display the scene to an occupant of the vehicle based on the scene data.