Facial Skeleton Estimation from Nose Features
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Solution Overview
Problem
Current methods are inefficient in measuring the shape related to a facial skeleton, making it difficult to obtain accurate three-dimensional facial features.
Innovation Solution
A method that determines a nose feature and estimates the shape related to a facial skeleton based on the nose feature, using a device with an image acquiring unit, nose feature determining unit, and skeleton estimating unit to generate a trained model for predicting facial skeleton shapes from nose features.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If direct measurement methods are used to measure facial skeleton shape, then measurement precision is improved, but device complexity and operation difficulty increase
Solution Approach 1:
The patent uses 2D nose region images as a copy or representation of the 3D facial skeleton structure. Instead of directly measuring the complex 3D facial skeleton, the system extracts nose features from 2D images and uses these as proxies to estimate overall facial skeleton shape, thereby simplifying the measurement process while maintaining accuracy
Solution Approach 2:
The patent extracts the nose region from the full face image and focuses measurement on this specific area. By taking out the nose region as a representative sample, the system can infer characteristics of the entire facial skeleton without needing to measure all facial bones directly, thus reducing device complexity and operation difficulty
2Measurement precision
If comprehensive facial skeleton measurement is performed, then measurement precision is improved, but ease of operation deteriorates
Solution Approach 1:
The patent extracts the nose region as a representative sample from the entire face. By focusing on this specific area that correlates with overall facial skeleton shape, the system maintains measurement precision while dramatically improving ease of operation, as users only need to provide a nose region image rather than undergoing comprehensive facial measurement
Solution Approach 2:
The patent segments the facial skeleton measurement problem into a smaller, manageable part by focusing on the nose region. This segmentation allows the system to achieve accurate estimates of overall facial skeleton shape through localized measurement, making the process much easier to operate while maintaining precision
Data Source
AI summary
To obtain a shape relating to a facial skeleton easily, a method according to an embodiment of the present invention includes a step of determining a nose feature of a user and a step of estimating a shape relating to a facial skeleton of the user based on the nose feature of the user.