Head-Up Display Virtual Image Adjustment for Wiper Visibility
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Solution Overview
Problem
Existing head-up display systems fail to effectively adjust virtual images in real-time based on the varying viewability of objects due to windshield wiper activity, leading to potential user inconvenience and reduced visibility.
Innovation Solution
A display control method and apparatus that includes a recognition unit for identifying objects, a detection unit for tracking the wiper's position, and a display unit that generates and adjusts virtual images to avoid the wiping area, ensuring optimal visibility by overlaying images only in non-wiped regions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the virtual image is displayed based on initial object recognition, then the object information is provided to the user, but the virtual image may be disrupted by windshield wiper activity reducing visibility
Solution Approach 1:
The system dynamically adjusts the virtual image display by continuously monitoring wiper position and modifying the image content in real-time. The display control unit changes the virtual image from a complete frame to a partial frame or removes it entirely when the wiper is detected in the display area, ensuring the virtual image adapts to the changing windshield conditions rather than remaining static
Solution Approach 2:
The system implements a feedback mechanism where the display control unit receives continuous position information from the wiper position detection unit and adjusts the virtual image display accordingly. This closed-loop control ensures that the virtual image display responds to wiper activity, maintaining visibility by removing or modifying the image when the wiper obscures the display area
2Reliability
If the virtual image is continuously updated to avoid wiper area, then the visibility is maintained, but the system complexity increases
Solution Approach 1:
The system segments the windshield display area into multiple regions and independently controls the virtual image display in each region based on wiper position. The display control unit divides the display area into a first area (where the wiper is located) and a second area (where the virtual image is displayed), allowing selective display management that maintains visibility without requiring complete system redesign
Solution Approach 2:
The display control unit performs multiple functions: it generates the virtual image based on object recognition, monitors wiper position, determines the display area boundaries, and adjusts the virtual image display. This multi-functional approach consolidates control logic into a single unit, managing system complexity while maintaining reliable visibility adaptation
Data Source
AI summary
A method of controlling a display control apparatus in a display system includes causing a display unit to generate a first certain image indicating a first presentation image to be overlapped on a certain object in display on a display medium on the basis of the recognized certain object; determining a wiping area wiped by a wiper on the display medium on the basis of detected position after the first presentation image is displayed on the display medium; and causing the display unit to generate a second certain image indicating a second presentation image resulting from deletion of a portion corresponding to the wiping area in the first presentation image in the display on the display medium.