Composite Vehicle Display for Clear Door Opening Recognition
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Solution Overview
Problem
In composite vehicle images displayed on in-vehicle displays, the perceived degree of door opening can vary significantly depending on the virtual viewpoint, making it difficult to recognize the actual door opening status.
Innovation Solution
A display device that synthesizes captured images from multiple cameras to generate a composite vehicle image, adjusting the representation of door opening based on the virtual viewpoint's direction relative to the vehicle, ensuring the door appears more open when viewed from certain angles.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If a composite vehicle image is generated based on a fixed virtual viewpoint, then the image representation is simple and consistent, but the door opening degree may not be easily recognizable from certain viewing directions
Solution Approach 1:
The patent applies dynamics by making the virtual viewpoint adjustable rather than fixed. The system allows the virtual viewpoint to be dynamically changed based on the actual camera positions and door opening states, enabling optimal viewing angles for door opening recognition while maintaining manageable system complexity through parameter-based control.
Solution Approach 2:
The patent changes the parameter of virtual viewpoint position and direction based on the actual camera arrangement and door opening state. By adjusting these parameters, the system optimizes the composite image to make door opening degree easily recognizable, resolving the contradiction between recognition accuracy and system complexity.
2Loss of information
If multiple cameras are used to capture surrounding images, then the coverage and information completeness are improved, but the complexity of synthesizing the composite image increases
Solution Approach 1:
The patent applies segmentation by dividing the composite image generation into distinct processing stages: capturing images from multiple cameras, determining door opening states from individual images, generating intermediate composite images for different doors, and finally synthesizing the complete composite vehicle image. This segmented approach maintains information completeness while managing synthesis complexity through structured processing.
3Measurement precision
If the virtual viewpoint is positioned to maximize door visibility, then door opening recognition is improved, but the overall vehicle representation may become less accurate
Solution Approach 1:
The patent resolves this contradiction by making the virtual viewpoint dynamic rather than fixed. The system adjusts the virtual viewpoint position and direction based on the actual camera arrangement and the specific door opening state being observed, enabling optimal door visibility while maintaining accurate overall vehicle representation through adaptive parameter adjustment.
Data Source
AI summary
A display device including: an image acquisition unit configured to acquire captured images using cameras that capture an image of surroundings of a vehicle; a composite image generation unit configured to synthesize the captured images and generate a composite vehicle image representing the vehicle as viewed from a virtual viewpoint; and a display control unit configured to display the composite vehicle image on an in-vehicle display unit. The composite image generation unit generates the composite vehicle image based on a direction relative to the vehicle from the virtual viewpoint to represent a door of the vehicle as being more widely opened when the virtual viewpoint is located in a predetermined first direction than when the virtual viewpoint is located in a predetermined second direction, the second direction being a direction from which an opening area of the door is more visible from the virtual viewpoint than from the first direction.