3D Skin Imaging Under Variable Lighting for Cosmetic Effect Demo
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Solution Overview
Problem
Existing methods struggle to efficiently demonstrate the effect of cosmetic procedures under varying lighting conditions, making it difficult to accurately assess the impact of such treatments.
Innovation Solution
A method and apparatus that utilize an analyzing apparatus to capture images of a subject with different lighting settings, calculate normals and skin models, and create three-dimensional meta data to accurately depict the cosmetic procedure's effect in a virtual environment.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If multiple lighting settings are used to capture images, then the accuracy of demonstrating cosmetic procedure effects is improved, but the complexity of the imaging process increases
Solution Approach 1:
The system pre-calculates and stores three-dimensional metadata (normals and skin models) from multiple lighting photos before the actual demonstration. This preliminary processing allows the virtual environment to efficiently render accurate cosmetic effects under any lighting condition without requiring real-time capture of all possible lighting scenarios, thus improving accuracy while managing complexity.
Solution Approach 2:
The system creates a virtual copy of the subject with embedded three-dimensional metadata that replicates the optical properties of the actual subject. This virtual model can be illuminated in the virtual environment to demonstrate cosmetic effects under various lighting conditions without needing to physically recapture the subject, reducing imaging process complexity while maintaining demonstration accuracy.
2Reliability
If three-dimensional metadata is calculated from multiple photos, then the reliability of cosmetic effect demonstration is improved, but the processing time increases
Solution Approach 1:
The three-dimensional metadata calculation (normals and skin models) is performed in advance during a preprocessing stage. This preliminary computation ensures reliable and accurate cosmetic effect demonstrations while separating the time-consuming processing from the actual demonstration phase, thus improving reliability without impacting real-time performance.
3Adaptability or versatility
If a virtual environment is used to demonstrate cosmetic effects, then the versatility of demonstration across different lighting scenarios is improved, but the device complexity increases
Solution Approach 1:
The system creates a virtual model of the subject with embedded three-dimensional metadata that captures the optical properties of the actual subject. This virtual copy can be rendered under any lighting condition in the virtual environment, providing versatile demonstration capabilities without requiring physical reconstruction of all possible lighting scenarios, thus improving adaptability while managing device complexity.
Solution Approach 2:
The system replaces physical lighting equipment and multiple camera setups with a computational virtual environment. Instead of mechanically capturing images under various lighting conditions, the system uses software-based rendering with pre-calculated three-dimensional metadata, reducing hardware complexity while maintaining or enhancing versatility.
Data Source
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AI summary
A method of demonstrating an effect of a cosmetic procedure on a subject, by using an analysing apparatus, wherein said method comprises the steps of providing lighting to said subject using a lighting setting, taking at least three photos of said subject after said cosmetic procedure has been performed on said subject, wherein for each of said at least three photos a different lighting setting is used, creating, by said analysing apparatus, an image have three dimensional based meta data, wherein said three dimensional based meta data is determined by calculating a plurality of normals of said subject using said at least three photos, thereby obtaining curvature information of said subject, implementing a skin model, wherein said skin model is based on a colour and a shining value of a skin of said subject and demonstrating, by said analysing apparatus, the effect of said cosmetic procedure by providing said image having said three dimensional based meta data in a virtual environment, and by differentiating in light provided in said virtual environment to said image having said three dimensional based meta data.