Transmissive AR Display Position Correction for Clear Recognition
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Solution Overview
Problem
Existing augmented reality (AR) display devices experience blurred visual recognition due to changes in the relative position between the device and the user's eye, leading to inappropriate display of images during image stabilization.
Innovation Solution
A processor that adjusts the display position of images within a correction region by deriving a second position based on the relative change between the AR device and the user's eye, changing the display position to a third position within the correction region when the second position exceeds it, and selectively controlling the display position, superimposition, or hiding the image based on the relative position change.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the display position is changed to cancel relative position changes (image stabilization), then visual recognition clarity is improved, but the display image may not be displayed appropriately when the corrected position exceeds the correction region
Solution Approach 1:
The patent implements dynamic display position adjustment by deriving a second position based on real-time relative position changes between the display device and user's eye, then dynamically selecting between displaying at the second position or clipping to the third position within the correction region based on whether the second position exceeds the correction region boundaries
Solution Approach 2:
The patent segments the display position correction into two distinct cases: when the second position is within the correction region (display at second position) and when the second position exceeds the correction region (clip to third position within correction region), allowing different handling strategies for different spatial conditions
2Reliability
If the display position is changed for image stabilization, then blurring is suppressed, but the display image may not be displayed at all in extreme cases
Solution Approach 1:
The patent applies preliminary anti-action by pre-defining the correction region boundaries and proactively clipping the display position to the third position within the correction region when the second position would exceed these boundaries, preventing the display image from being lost before it can occur
Data Source
AI summary
A processor is configured to, based on a change of a relative position between a transmissive display device and a user's eye, derive a second position according to a first position of a display image displayed in a display region of the display device and the change of the relative position, change the first position to the second position in a case in which the second position does not exceed a correction region where a correction of a display position is possible, and change the first position to a third position and display the display image within the correction region in a case in which the second position exceeds the correction region.