AR Image Luminance Synchronization with Target Device Feedback
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Solution Overview
Problem
Users of wearable augmented reality (AR) devices experience eye strain due to differences in luminance between AR images and images from target devices, caused by ambient luminance adjustments.
Innovation Solution
An electronic device that receives luminance information from target devices, determines the luminance values of both the target devices and associated AR images, and adjusts mask opacity based on these values to synchronize luminance and reduce eye strain.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the electronic device adjusts the luminance of the AR image based on the ambient luminance of the electronic device, then visual comfort to a user is provided, but a difference between the luminance of the AR image and the luminance of an image output from a target device occurs
Solution Approach 1:
The system obtains luminance information from the target device and uses it as feedback to adjust the AR image luminance. The processor receives maximum luminance and luminance setting values from the target device, then determines the AR image luminance value based on this feedback information, ensuring consistency between the AR image and target device image luminance.
Solution Approach 2:
The system changes the luminance parameter of the AR image based on the target device's luminance characteristics. By adjusting the luminance value of the AR image to match the target device's luminance profile, the system resolves the contradiction between providing visual comfort and maintaining luminance consistency.
2Adaptability or versatility
If the luminance of the AR image is adjusted based on ambient luminance, then the AR image adapts to viewing conditions, but eye strain occurs due to pupil adjustment when viewing both AR and target device images
Solution Approach 1:
The system equalizes the luminance potential between the AR image and the target device image by setting their luminance values to be substantially the same. This eliminates the luminance difference that causes pupil adjustment and eye strain, while still allowing the AR image to adapt to overall viewing conditions through the target device's luminance profile.
3Manufacturing precision
If the luminance value of the AR image is increased to match the target device, then luminance consistency is achieved, but the maximum luminance of the electronic device may be exceeded
Solution Approach 1:
The system applies different luminance strategies to different areas of the display. For the AR image area, it adjusts luminance to match the target device within device capabilities. For non-AR areas, it maintains ambient luminance-based adjustment. This localized approach ensures luminance consistency where needed while respecting device luminance limitations.
Data Source
AI summary
An electronic device includes a memory configured to store computer-executable instructions, a processor configured to execute the computer-executable instructions by accessing the memory, and a communicator configured to receive luminance information comprising a maximum luminance and a luminance setting value from at least one target device among one or more external devices identified by the electronic device. The processor is configured to determine a luminance value of the at least one target device, based on the luminance information received from the at least one target device. The processor is further configured to determine a luminance value of an AR image associated with the at least one target device, based on the luminance value of the at least one target device.