AR Windshield Map Overlays Aligned to Driver Field of View
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional in-vehicle displays do not consider a driver's specific field of view (FoV) when presenting information, limiting the effectiveness of Roadbook map features in autonomous vehicles.
Innovation Solution
The safety system integrates augmented reality (AR) technology to present graphical representations of road maps and features within the driver's FoV, utilizing AV map data to track the vehicle's geographic location and orientation, and project relevant information onto the windshield or wearable devices, aligning it with the user's gaze direction.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional in-vehicle displays are used to present Roadbook map features, then the system is simple and easy to implement, but the information is not aligned with the driver's field of view, reducing effectiveness and safety
Solution Approach 1:
The patent transitions from conventional 2D flat displays to augmented reality displays that overlay graphical representations onto the driver's actual field of view through the windshield. This dimensional change allows information to be presented in the driver's natural viewing direction, improving safety while managing complexity through software-based AR composition.
Solution Approach 2:
The AR display system serves multiple functions: it presents navigation information, displays Roadbook map features, provides contextual driving information, and aligns all content with the driver's dynamic field of view. This multi-functionality improves overall system effectiveness while consolidating display purposes into a single unified interface.
2Loss of information
If AR technology is integrated to align information with driver's FoV, then information effectiveness and safety are improved, but the device complexity increases
Solution Approach 1:
The patent introduces an intermediary AR display system that acts as a bridge between the navigation information and the driver's field of view. This intermediary layer composes graphical representations and overlays them onto the windshield, ensuring information is delivered effectively without requiring direct modification of the driver's natural viewing experience.
Solution Approach 2:
The system replaces mechanical/physical display adjustments with software-based AR composition and rendering. Instead of physically adjusting display positions or angles, the system uses computational methods to dynamically align graphical representations with the driver's FoV, reducing mechanical complexity while improving information delivery.
3Measurement precision
If graphical representations are dynamically aligned with user's gaze direction, then the precision of information presentation is improved, but the computational requirements and system complexity increase
Solution Approach 1:
The system implements feedback mechanisms that continuously monitor the driver's field of view and gaze direction, then dynamically adjust the positioning and orientation of graphical representations accordingly. This feedback loop ensures high precision alignment while managing computational complexity through efficient tracking and rendering algorithms.
Data Source
AI summary
Techniques are disclosed for using augmented reality (AR) displays to convey graphical representations of different types of information to a user. The information may be obtained from various sources such as objects and/or features that are dynamically detected by a vehicle or user-generated content. The graphical representations may also be based upon information that may be obtained via the use of crowdsourced AV map data. The graphical representations may be presented in as an AR view in a medium (such as a vehicle windshield) that matches a field of view of a user, thus accurately blending holographic information with the physical objects in the scene.