Tilted Interaction Screen for Artificial Reality Pointing Precision
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Solution Overview
Problem
In artificial reality systems, users face difficulties in precisely pointing to locations on horizontal screens due to angular resolution issues, where farther portions appear smaller and are viewed at a narrower angle, making it hard to accurately interact with virtual objects or UI components.
Innovation Solution
A computing device generates a transparent interaction screen tilted towards the user, providing better angular resolution by mapping points on the interaction screen to the horizontal screen and displaying a curved line to guide the user's input, allowing precise selection and movement of virtual objects or UI components.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If a horizontal screen is used in artificial reality system, then the screen can be displayed, but the angular resolution deteriorates causing difficulty in precise pointing
Solution Approach 1:
A transparent interaction screen is introduced as an intermediary between the user and the horizontal screen. This intermediate screen provides a better viewing angle and angular resolution while maintaining the functionality of the original horizontal screen through point mapping.
Solution Approach 2:
The solution adds a new dimensional layer by introducing a transparent interaction screen that overlays the horizontal screen. This creates a multi-layer display system where the interaction screen operates in a different spatial dimension, providing improved angular resolution without removing the original horizontal screen.
2Measurement precision
If the interaction screen is tilted towards the user, then angular resolution improves, but the screen geometry becomes more complex
Solution Approach 1:
The screen is tilted at a specific angle (e.g., 45 degrees) towards the user, changing the geometric parameter of the screen orientation. This parameter change improves angular resolution by providing a more favorable viewing angle while maintaining manageable complexity through defined geometric relationships.
Solution Approach 2:
The interaction screen is positioned asymmetrically relative to the horizontal screen, tilted towards the user at a specific angle. This asymmetric positioning optimizes the viewing angle and angular resolution for the user's natural viewing position, breaking the symmetry of the original horizontal layout.
Data Source
AI summary
In one embodiment, a method includes displaying a horizontal screen visible to a user through a display, determining a horizontal distance between a position of the user and the horizontal screen, determining a vertical distance between a controller associated with the user and the horizontal screen, creating an interaction screen, where the interaction screen and the horizontal screen intersect in a closest point, where the interaction screen is tilted toward the user from the horizontal screen by an angle, detecting a first event that a ray cast from a virtual representation of the controller hits a first point on the interaction screen, translating the first event to a second event that the ray cast hits a second point on the horizontal screen, and displaying a curved line from the controller to the second point on the horizontal screen that is visible to the user through the display.