Vehicle Surround-View Display Control for Distortion and Double Imaging
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Solution Overview
Problem
Existing display systems for vehicles face challenges in reducing image distortion and ensuring that surrounding vehicles are not obscured or double-imaged, leading to potential confusion for the driver when combining images from multiple cameras.
Innovation Solution
A display control apparatus that detects surrounding vehicles using multiple imaging devices, performs projection conversion and visual point conversion to project images onto a projection plane, and dynamically adjusts the virtual visual point's ground height and projection plane tilt based on the presence of surrounding vehicles, using a screen projection plane to prevent image overlap and distortion.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If a fixed high virtual visual point is used for projection conversion, then image distortion is reduced, but the driver's gaze is unnecessarily guided away from the road
Solution Approach 1:
The patent applies dynamics by making the virtual visual point position adjustable rather than fixed. The ground height of the virtual visual point is dynamically changed based on detection results: set higher when no surrounding vehicles are detected to reduce image distortion, and set lower when surrounding vehicles are detected to prevent gaze guidance away from the road. This dynamic adjustment resolves the contradiction between distortion reduction and gaze control.
2Device complexity
If multiple captured images are combined without dynamic adjustment, then processing complexity is reduced, but surrounding vehicles may be obscured or double-imaged
Solution Approach 1:
The patent applies feedback by using the detection result of surrounding vehicles to control the image combination process. The detection unit detects surrounding vehicles, and this detection information feeds back to the image combination unit, which then adjusts the virtual visual point position and combines images accordingly. This feedback mechanism ensures reliable vehicle detection while maintaining reasonable processing complexity.
3Ease of operation
If the virtual visual point ground height is lowered to reduce gaze guidance, then driver safety is improved, but image distortion increases
Solution Approach 1:
The patent uses dynamics to adjust the virtual visual point ground height based on real-time detection conditions. When surrounding vehicles are detected, the ground height is lowered to prevent gaze guidance away from the road, accepting some distortion. When no vehicles are detected, the ground height is raised to minimize distortion. This dynamic approach resolves the contradiction by adapting to different operational contexts.
Data Source
AI summary
Provided is a display control apparatus including a vehicle detector and a processor, in which the processor performs projection conversion for projecting the plurality of captured images onto a projection plane, performs a visual point conversion process for converting at least one of the plurality of captured images into an image viewed from a virtual visual point, and sets a ground height of the virtual visual point when the surrounding vehicle is not detected in a predetermined region to be lower than a ground height of the virtual visual point when the surrounding vehicle is detected in the predetermined region.