3D Head Model for Glasses Frame Fit Selection
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Solution Overview
Problem
The process of selecting glasses frames that fit an individual's head is inefficient, requiring physical try-ons at stores and involving significant time, as not all frames fit all head sizes, and aesthetic preferences complicate the selection process.
Innovation Solution
A method and system using images or video frames of a user's head to create a 3D model, comparing measurements to a database of glasses frames, and employing a penalty function to select frames that fit, allowing for remote fitting and visualization of selected frames.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If a person physically tries on glasses frames at an optometrist or eyewear store, then they can determine whether the frames fit their head, but the process requires significant time and multiple physical visits
Solution Approach 1:
The patent creates a digital 3D copy of the user's head using images or video frames, which serves as a virtual model for fitting glasses frames. This digital copy eliminates the need for physical try-ons while maintaining fit accuracy through automated comparison algorithms that evaluate multiple frames against the 3D model.
Solution Approach 2:
The patent replaces the mechanical process of physically trying on glasses with an automated computational system. The system uses image processing to create a 3D head model and algorithms to automatically compare frame measurements with head measurements, substituting the manual mechanical trial process with digital automation.
2Adaptability or versatility
If a person browses through several rows of glasses frames at a store, then they can see various options, but most frames do not fit their head size requiring multiple attempts
Solution Approach 1:
The patent performs preliminary measurements of the user's head using images or video frames before presenting frame options. By pre-determining the user's head measurements and creating a 3D model, the system can pre-filter compatible frames, eliminating the need for users to physically try on incompatible options and significantly reducing selection time.
Solution Approach 2:
The patent implements a feedback mechanism where the system compares frame measurements with the user's head measurements, evaluates fit quality using a penalty function, and provides feedback by identifying which frames are compatible and which are not. This automated feedback eliminates the trial-and-error process of physical store browsing.
3Ease of manufacture
If glasses frames are designed to fit most people, then manufacturing is simplified, but not all heads are the same size so fit precision varies
Solution Approach 1:
The patent applies local quality by creating a customized 3D model of each user's head with specific measurements tailored to their individual anatomy. While frames are manufactured with standard dimensions, the system adapts the selection process to each user's local head characteristics, ensuring precise individual fit despite standardized manufacturing.
Data Source
AI summary
A system for fitting glasses frames to a user is disclosed. The system includes an interface for receiving images of a user's head at different angles. A processor compares user head measurements determined from the images with a database of glasses frame information that includes glasses frame measurements. One or more glasses frames are selected based on the comparison and the selected glasses frames are output.