3D Head Model for Wearable Display Fit Prediction
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Solution Overview
Problem
Existing systems for wearable devices, such as smart glasses, do not provide customization options for fit and function, particularly without access to a retail establishment, limiting users' ability to select frames and incorporate prescription lenses.
Innovation Solution
A computer-implemented method that captures image data to generate a three-dimensional model of a user's head, transmits it to a simulation engine, and determines the configuration of a head-mounted wearable device for optimal display and ophthalmic fit, allowing for customization of wearable computing devices, including the incorporation of corrective lenses, without physical retail access.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If existing procurement systems for wearable devices are used, then device acquisition is simplified, but customization options for fit and function are limited
Solution Approach 1:
The system performs preliminary actions by capturing image data and generating a 3D head model before the user actually needs to customize or purchase the wearable device. This advance preparation enables customization options to be presented and selected online without requiring physical retail visits, thereby increasing adaptability while managing complexity through automated processing.
Solution Approach 2:
The system creates a digital copy (3D model) of the user's head geometry from image data. This digital replica serves as a virtual surrogate for physical measurements, enabling accurate fit prediction and customization online without requiring physical presence in retail establishments, thus enhancing versatility while keeping the system manageable.
2Measurement precision
If physical retail establishment access is required, then accurate fit measurement is achieved, but user convenience is reduced
Solution Approach 1:
The system enables self-service by allowing users to capture their own image data using their mobile device camera and complete the entire fit measurement and customization process independently at home. The automated image processing and 3D model generation eliminate the need for retail staff assistance while maintaining measurement accuracy, significantly improving user convenience.
Solution Approach 2:
The system replaces the mechanical measurement process (physical tools and manual measurements in retail stores) with an optical-digital process using camera images and computational algorithms. This substitution maintains measurement precision while eliminating the need for physical retail visits, thereby enhancing ease of operation.
3Manufacturing precision
If traditional fitting processes are used, then accurate display and ophthalmic fit are ensured, but time consumption increases
Solution Approach 1:
The system performs fit analysis and display configuration predictions in advance, before the user makes a purchase decision. By pre-processing image data and generating accurate fit measurements online, the system eliminates the need for time-consuming in-store fitting appointments, thereby maintaining manufacturing precision while reducing time loss.
Solution Approach 2:
The digital 3D head model serves as a precise replica that can be repeatedly analyzed without additional time investment. Once created from initial images, this digital copy enables rapid iteration and analysis of different display configurations and fit options, maintaining accuracy while dramatically reducing the time required compared to traditional repeated physical fittings.
Data Source
AI summary
A system and method of detecting display fit measurements and/or ophthalmic measurements for a head mounted wearable computing device including a display device is provided. The system and method may include capturing image data including a face of a user to be fitted for the head mounted wearable computing device. A three-dimensional head pose and gaze measurements may be extracted and a three-dimensional model may be developed from the captured image data. The system may detect display fit measurements and/or ophthalmic fit measurements from the three-dimensional model, and may provide one or more head mounted wearable computing devices that meet the display fit and/or ophthalmic fit requirements.