AR Route Display Control for Limited Windshield Projection
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Solution Overview
Problem
Conventional vehicle information projection systems cause discomfort for drivers by maintaining the visibility of guide route images that deviate from the real scenery, leading to a feeling of strangeness when trying to recognize the traveling route.
Innovation Solution
A display control device that generates a guide display object image formed by overlapping image elements along the travel route and includes an abandonment determination unit to assess and adjust the display of image elements outside the displayable range, ensuring correct superimposition and continuity of the travel route.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the guide route image is displayed continuously even when deviating from the real scenery, then the visibility of the guide route is maintained, but the driver experiences discomfort and a feeling of strangeness
Solution Approach 1:
The system continuously monitors the positional relationship between the guide route image and the real scenery, and provides feedback by adjusting the display visibility. When the guide route deviates from the actual road position, the system detects this misalignment and automatically reduces or stops displaying the guide route image, preventing driver discomfort while maintaining reliability when properly aligned.
2Object-affected harmful factors
If the guide route image is adjusted to match the real scenery position, then driver comfort is improved, but the guide route visibility may be reduced when deviating
Solution Approach 1:
The display visibility of the guide route image is made dynamic rather than static. The system adjusts the visibility level based on real-time detection of the alignment between the guide route and the actual road. When aligned, full visibility is provided for reliable navigation; when misaligned, visibility is reduced or stopped to prevent driver discomfort, creating an adaptive display system that responds to changing conditions.
3Manufacturing precision
If the virtual image display range is limited, then the superimposition accuracy on the real scenery is improved, but the displayable range of the guide route is reduced
Solution Approach 1:
The system introduces an intermediary detection mechanism that identifies the precise displayable range of the virtual image. By using this intermediary detection layer, the system can accurately determine where the virtual guide route image can be properly superimposed on the real scenery, and adjust the guide route display accordingly. This intermediary step enables accurate superimposition within the limited display range without losing overall guide route information.
Data Source
AI summary
A display control device that controls a display state of a virtual image to be overlapped on an overlapping target in front of a passenger of the vehicle includes: a display image generator that generates a guide display object image formed by a combination of a plurality of image elements overlapped and displayed along a travel route to notify a passenger of the travel route of the vehicle; and an abandonment determination unit that determines whether each of the image elements is disposed out of a displayable range of the virtual image. When one of the image elements is disposed out of the displayable range, the display image generator displays a part of the image elements as the guide display object image, which is disposed along the travel route just before the one of the image elements that is determined to be out of the displayable range.