3D Vehicle Display Viewpoint Switching for Forward Obstacle Visibility
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Solution Overview
Problem
Existing vehicle display systems may fail to display obstacles on the traveling direction side of a vehicle, depending on the selected viewpoint, potentially leading to unnoticed hazards.
Innovation Solution
A vehicle display control device that generates an image looking down at the vehicle and its surroundings from a set viewpoint, and automatically switches the viewpoint to ensure that obstacles on the traveling direction side are displayed, using a combination of imaging units, polygon models, and obstacle detection units.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the user can change the viewpoint of the displayed image, then the ease of operation is improved, but the reliability deteriorates because obstacles may not be displayed depending on the selected viewpoint
Solution Approach 1:
The system continuously monitors obstacle detection results and provides feedback by automatically adjusting the viewpoint when obstacles are detected. The control unit receives obstacle information from the obstacle detection unit and switches the viewpoint to ensure obstacles are visible, creating a closed-loop system that maintains reliability while preserving user viewpoint selection capability.
Solution Approach 2:
The viewpoint configuration is made dynamic rather than static. The system allows the viewpoint to change automatically based on real-time obstacle detection conditions, while still permitting user selection when no obstacles are present. This dynamic adjustment ensures obstacles are always visible when detected, resolving the contradiction between user control and safety reliability.
2Reliability
If the viewpoint is fixed to always show obstacles, then the reliability is improved, but the ease of operation deteriorates because users cannot select their preferred viewpoint
Solution Approach 1:
The system implements conditional viewpoint fixation. When obstacles are detected, the viewpoint is fixed to ensure visibility. When no obstacles are detected, the viewpoint becomes flexible again, allowing user selection. This dynamic conditional approach maintains reliability when needed while preserving user freedom when safe.
Solution Approach 2:
The system automatically manages viewpoint selection based on obstacle detection results without requiring user intervention. The control unit self-adjusts the viewpoint configuration according to real-time safety conditions, freeing users from manual viewpoint management while maintaining both reliability and operational flexibility.
3Loss of information
If multiple obstacles are displayed, then the information completeness is improved, but the device complexity increases due to obstacle grouping and viewpoint switching logic
Solution Approach 1:
The system segments obstacles into groups based on their spatial relationships and characteristics. By dividing multiple obstacles into manageable groups, the control unit can selectively display relevant obstacles and adjust viewpoints appropriately for each group, reducing the overall complexity while maintaining complete information presentation.
Solution Approach 2:
Different viewpoint configurations are applied locally to different obstacle groups. Rather than using a single complex viewpoint for all obstacles, the system selects appropriate viewpoints tailored to each obstacle group's characteristics and position, simplifying the control logic while ensuring complete and clear display of all obstacles.
Data Source
AI summary
The control unit generates a 3D view in which the vehicle and its surroundings are viewed from the set viewpoint from the captured images acquired from the imaging unit that captures an image of the surroundings of the vehicle and the polygon model indicating the vehicle, and displays the generated 3D view on the display. Here, when the obstacle detecting unit detects the obstacle 52 existing in the traveling direction of the vehicle, the viewpoint of 3D view displayed on the display can be switched to the viewpoint where the traveling direction of the vehicle 50 can be confirmed and the obstacle 52 is displayed on the display.