Virtual Touch Recognition Error Correction for Head-Up Displays
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Solution Overview
Problem
Recognition errors occur when applying virtual touch technology to vehicles equipped with head-up displays due to variations in the user's eye position and the image display position, affecting the accuracy of virtual touch recognition.
Innovation Solution
A virtual touch recognition apparatus that includes a gesture recognizer using a 3D camera to detect the user's eye and finger positions, a head-up display projecting images on the vehicle's windshield, and a controller that corrects recognition errors based on these positions using a look-up table to adjust the coordinates of control objects in the projected image.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If virtual touch recognition technology is applied in conjunction with head-up display, then driver distraction is minimized and safety is ensured, but recognition errors occur due to variations in eye position and image display position
Solution Approach 1:
The system uses a camera to detect the driver's eye position and finger position, then feeds back this information to the controller. The controller calculates the virtual touch position based on this feedback and applies correction values from a look-up table to compensate for position variations, thereby maintaining recognition accuracy while preserving the safety benefits of head-up display
Solution Approach 2:
The system changes the parameter of virtual touch position calculation by incorporating eye position and image display position as variable parameters. The controller adjusts the virtual touch position based on these parameters and applies correction values, transforming a fixed recognition system into a dynamic one that adapts to varying eye and display positions
2Adaptability or versatility
If the position of virtual image changes depending on eye position or display position, then adaptability to different viewing conditions is improved, but recognition error increases
Solution Approach 1:
The system makes the virtual touch recognition dynamic by continuously detecting eye position and image display position, then adjusting the virtual touch position calculation in real-time. The controller dynamically applies correction values from the look-up table based on the detected positions, allowing the system to adapt to different viewing conditions while maintaining accurate recognition
Solution Approach 2:
The system implements feedback by detecting the actual eye position and image display position, then using this information to correct the virtual touch position. The look-up table stores pre-calculated correction values that are applied based on the detected positions, creating a closed-loop system that maintains accuracy across varying conditions
Data Source
AI summary
A virtual touch recognition apparatus and a method of correcting a recognition error of the virtual touch recognition apparatus utilize a user's eye position and an image display position or projection position of a head-up display (HUD). The virtual touch recognition apparatus includes a gesture recognizer detecting the eye position of a user, the head-up display projecting an image on the image display position in front of the user, and a controller correcting a recognition error of a virtual touch based on the eye position of the user and the image display position. The apparatus and method can minimize a virtual touch recognition error occurring depending on the user's eye position and the image display position of the HUD when gesture control technology using the virtual touch is applied to a vehicle.