AR HUD Content Positioning for Accurate Depth Perception
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Solution Overview
Problem
Existing augmented reality (AR) systems for vehicle navigation cause visual fatigue and crosstalk due to depth mismatches and occlusions of virtual content by real objects, making it difficult for drivers to focus on accurate depth perception during navigation.
Innovation Solution
A content visualizing method and apparatus that adjusts the depth and position of AR content on a head-up display (HUD) based on vehicle position, road alignment, and detected events, ensuring accurate depth perception and minimizing occlusions by deforming and adjusting content dynamically.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If AR content is displayed at a fixed depth on HUD, then the display system is simple, but depth mismatches occur causing visual fatigue and crosstalk
Solution Approach 1:
The patent implements dynamic depth adjustment of AR content based on the vehicle's real-time position and road geometry. The content depth is no longer fixed but varies dynamically to match the perceived depth of road features, eliminating depth mismatches that cause visual fatigue and crosstalk while maintaining system feasibility through algorithmic control
Solution Approach 2:
The system changes the depth parameter of AR content dynamically based on vehicle position, road alignment, and distance to indication points. By adjusting this critical parameter in real-time, the system achieves accurate depth perception without requiring complex hardware modifications, resolving the contradiction between reliability and device complexity
2Reliability
If AR content is displayed at fixed position, then the display system is simple, but occlusions by real objects occur
Solution Approach 1:
The patent implements dynamic horizontal and vertical positioning of AR content based on vehicle position and road geometry. The content moves dynamically to avoid occlusion by real objects while maintaining accurate spatial relationships with road features, improving navigation visibility without excessive complexity
Solution Approach 2:
The system utilizes multiple spatial dimensions (horizontal position, vertical position, and depth) to position AR content. By adjusting content position across these dimensions dynamically, the system avoids occlusions that would occur in fixed 2D displays while maintaining accurate depth perception
3Measurement precision
If static route guidance content is displayed, then the system is simple, but the content becomes inaccurate as vehicle position changes
Solution Approach 1:
The patent implements dynamic deformation of route guidance content based on the vehicle's current position and distance to indication points. As the vehicle approaches the indicated location, the content automatically deforms and updates to maintain accurate representation of the remaining route, ensuring measurement precision without requiring complete system redesign
Solution Approach 2:
The system performs preliminary deformation of route guidance content in advance as the vehicle approaches indication points. By preparing and gradually updating the content before the vehicle reaches critical locations, the system maintains accuracy throughout the journey while using computationally efficient methods
Data Source
AI summary
Provided are a content visualizing device and method that changes positions and shapes of route guidance content and driving related content based on a distance to an adjacent object, a current driving state, and an occurrence of a driving related event.