AR UI Calibration Using Arm Length and Hand Size
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Solution Overview
Problem
Wearable electronic devices with user interfaces struggle to accommodate users of varying arm and hand sizes, leading to UI controls that may be too far away or too close, affecting interaction comfort and effectiveness.
Innovation Solution
A calibration process that detects physiological characteristics such as arm length and hand size to adjust UI parameters, ensuring controls are within reach and appropriately scaled for the user.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If UI controls are positioned at fixed distances from the user, then device complexity is reduced, but ease of operation deteriorates for users with different arm and hand sizes
Solution Approach 1:
The system performs preliminary calibration by detecting the user's arm length and hand size before normal UI interaction begins. This advance measurement allows the UI to be pre-configured with appropriate control distances and sizes for that specific user, eliminating the need for continuous adjustment during operation.
Solution Approach 2:
The system changes the parameters of UI controls (distance from user, size of controls) based on detected physiological characteristics. By dynamically adjusting these parameters according to the user's arm length and hand size, the system optimizes ease of operation without requiring complex mechanical adjustments.
2Adaptability or versatility
If UI controls are positioned closer to all users, then ease of operation improves for users with smaller appendages, but it becomes unnecessarily close for users with larger appendages, reducing overall adaptability
Solution Approach 1:
The system applies different UI configurations to different users based on their individual physiological characteristics. Each user receives a customized UI setup with control distances and sizes tailored to their specific arm length and hand size, rather than applying a uniform configuration to all users.
Solution Approach 2:
The system obtains feedback about the user's physiological characteristics through detection of arm length and hand size, then uses this information to adjust UI parameters. This feedback loop enables the system to adapt the UI controls to each user's needs, improving both adaptability and ease of operation.
Data Source
AI summary
An augmented reality (AR) calibration process for an eyewear device that customizes an AR user interface (UI) for the wearer. Physiological characteristics such as arm length and hand size are determined from images captured by the eyewear device for use in adjusting the UI controls before rendering the UI.