Dynamic Mask Highlighting for Vehicle Top View Displays
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Solution Overview
Problem
Conventional vehicle image display systems that join images from multiple cameras to form a composite image often suffer from inaccuracies at the joints, leading to reduced effectiveness of mask warnings as occupants become accustomed to the display, causing a loss of visibility and warning effectiveness.
Innovation Solution
A vehicle image display system that changes the display form of masks superposed on the composite image over time, highlighting them initially with conspicuous colors or flashing until a predetermined period, then switching to less noticeable forms to maintain attention and prevent habituation, while adjusting based on environmental conditions and user interactions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If masks are superposed on the joints of the composite image to indicate inaccuracy, then the warning effectiveness is improved, but the masks lose visibility over time as occupants become accustomed to the display
Solution Approach 1:
The mask display form is changed dynamically over time. Initially, masks are displayed in a first form (e.g., with higher visibility), and after a predetermined period, they switch to a second form (e.g., with reduced visibility). This dynamic adjustment prevents occupants from becoming habituated while maintaining warning effectiveness.
Solution Approach 2:
The system employs periodic changes in mask display characteristics. By alternating between different display forms at predetermined intervals, the system maintains occupant attention and prevents desensitization to the warning indicators.
2Illumination intensity
If masks are displayed in a conspicuous form to maintain warning effectiveness, then visibility is improved, but the display becomes less acceptable to occupants due to persistent distraction
Solution Approach 1:
The mask display transitions from a conspicuous first form to a less noticeable second form after a predetermined period. This reduces distraction and improves display acceptability while maintaining sufficient warning effectiveness through the periodic recurrence of the conspicuous form.
Solution Approach 2:
By periodically switching between conspicuous and less conspicuous display forms, the system balances warning effectiveness with occupant comfort, preventing persistent distraction while maintaining alertness.
3Device complexity
If the same mask display form is used continuously, then the system complexity is reduced, but the warning effectiveness decreases due to habituation
Solution Approach 1:
The system implements dynamic switching between different mask display forms based on elapsed time. This adds temporal variability to the display without requiring complex additional hardware, maintaining warning effectiveness while avoiding excessive system complexity.
Data Source
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Figure 4A~4C
AI summary
When an image processing device subjects images photographed by on-vehicle cameras to viewpoint changing, and joints the images to form a top view image, and superposes masks on joints of the top view image to display it as an image to be monitored in a display, the masks of the top view image are highlighted until a passage of predetermined time after predetermined conditions are established. Thus, the masks can be made conspicuous only when necessary to be presented to an occupant of a vehicle, and an easily seen top view image can be displayed while preventing a reduction in effectiveness of warning of the masks.