HUD Mirror Angle Control for Accurate AR Image Alignment
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Solution Overview
Problem
Existing display technologies, such as head-up displays (HUDs) and augmented reality (AR) systems, struggle to align virtual images with actual images accurately, leading to misalignment issues that can affect user perception and safety.
Innovation Solution
A display control device that adjusts the angle of a mirror to reflect light for display on a windshield, using depth information and user input to align virtual images with the external scene, ensuring they are properly overlaid on the actual image without misalignment.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a head-up display (HUD) is used to project virtual images onto the windshield, then information can be displayed to the user, but the virtual image may appear misaligned from the actual image ahead
Solution Approach 1:
The system uses a camera to capture the actual image ahead and compares it with the projected virtual image, detecting misalignment in real-time. Based on this feedback, the control unit automatically adjusts the projection position to correct the alignment, ensuring the virtual image remains accurately overlaid on the actual scene without requiring manual calibration by the user.
Solution Approach 2:
The patent replaces manual mechanical adjustment mechanisms with an automated optical-electrical system. Instead of requiring physical adjustment of the HUD projector position, the system uses electronic control signals to adjust the projection optics based on camera feedback, substituting mechanical user adjustment with automated optical correction.
2Adaptability or versatility
If the mirror angle is changed to adjust display position, then the virtual image position can be modified, but the alignment with the actual image may be disrupted
Solution Approach 1:
When the mirror angle is adjusted to change display position, the camera continuously monitors the alignment between the virtual and actual images. The control unit receives feedback about any misalignment caused by the angle change and automatically compensates by adjusting the projection parameters, maintaining precise alignment despite the position adjustment.
Solution Approach 2:
The system implements dynamic adjustment where the projection parameters are continuously adapted in response to mirror angle changes. Rather than static alignment, the system maintains real-time dynamic coordination between mirror position and projection parameters, allowing flexible display position adjustment while preserving alignment accuracy.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Ensures accurate alignment of virtual and actual images, enhancing user visibility and safety by minimizing the need for larger HUD components and reducing eye movement fatigue.
Implementation Method 1
an angle of a mirror configured to reflect light for display on a display
Data Source
AI summary
A display control device that includes: a processor; and a memory that is coupled with the processor and is configured to store a correspondence relationship between an angle of a mirror configured to reflect light for display on a display and depth information indicating a virtual display position of an image for display on the display so as to correspond to an external scene, the processor being configured to: receive input from a user, and change the mirror angle in response to the received input, adjust a display position of an image to be displayed on the display based on the depth information associated with the mirror angle after it is changed, and display the image on the display.