AR Display Tilt-Angle Selection for Gaze-Fixation Coverage
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Solution Overview
Problem
AR wearable devices have a limited field of view (FOV) that fails to accommodate user gaze fixations, leading to graphics being projected outside the display area, thereby reducing the effectiveness of AR applications.
Innovation Solution
Collect gaze fixation data during user tasks to generate a probability distribution of vertical viewing angles, adjusting the AR display's tilt angle to maximize gaze fixations within the FOV based on user behavior.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the AR display uses a fixed tilt angle, then the device structure is simple, but the gaze fixations fall outside the field of view reducing effectiveness
Solution Approach 1:
The patent implements adjustable tilt angles for the AR display, allowing the system to dynamically adapt the display orientation based on user gaze patterns and task requirements. This transforms the fixed display into a dynamic one that can reconfigure its tilt angle to accommodate different gaze fixations while maintaining reasonable structural complexity through controlled adjustment mechanisms.
Solution Approach 2:
The system changes the tilt angle parameter of the AR display based on analyzed gaze fixation data and probability distributions of viewing angles. By adjusting this key geometric parameter, the display adapts to different user behaviors and tasks, improving gaze accommodation without requiring complete structural redesign.
2Adaptability or versatility
If the AR display increases field of view coverage, then more gaze fixations are accommodated, but the device power consumption increases
Solution Approach 1:
The AR display dynamically adjusts its tilt angle based on real-time or near-real-time gaze fixation analysis, rather than maintaining a fixed wide-angle configuration that would consume more power. This dynamic adaptation allows the system to achieve high gaze coverage only when needed, reducing overall power consumption while maintaining adaptability.
Solution Approach 2:
The system uses feedback from gaze fixation tracking to inform tilt angle adjustments. By continuously monitoring where users look and analyzing probability distributions of viewing angles, the system receives feedback that guides optimal display configuration, achieving high gaze coverage efficiently without wasteful power consumption from continuously wide-angle operation.
3Ease of operation
If the AR display adjusts tilt angle dynamically, then gaze fixations are better accommodated, but the device complexity increases
Solution Approach 1:
The AR display system performs self-adjustment of tilt angles based on automated analysis of gaze fixation data and probability distributions. The system serves itself by using its own operational data to configure its display parameters, eliminating the need for complex manual control interfaces or sophisticated external adjustment mechanisms, thus improving usability without proportionally increasing device complexity.
Data Source
AI summary
Systems, methods, and computer readable media for selecting a tilt angle of an augmented reality (AR) display of an AR wearable device. Some examples of the present disclosure capture simulation data of gaze fixations while users are performing tasks using applications resident on the AR wearable device. The tilt angle of the AR display is selected based on including more gaze fixations that are within the field of view (FOV) of the AR display than are outside the FOV of the AR display. In some examples, an AR wearable device is manufactured with a fixed vertical tilt angle for the AR display. In some examples, the AR wearable device can dynamically adjust the vertical tilt angle of the AR display based on the applications that a user of the AR wearable device is likely to use or is using.