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Lip color measurement: A new hyperspectral imaging device
Héloïse Vergnaud1, Marie Cherel2, Ghislain Francois2
1MCI Department, LVMH Recherche, Neuilly sur Seine, France.
Summary
Accurate lip color measurement is crucial for understanding ethnic diversity. The SpectraFace® system, using hyperspectral imaging, proved effective for detailed lip color characterization and repeatability.
Area of Science:
- Dermatology
- Color Science
- Biomedical Engineering
Background:
- Lip color perception is vital for self-image and social interaction.
- Measuring lip color diversity is challenging due to anatomical variations.
- Accurate lip color data is needed for comprehensive cross-sectional studies.
Purpose of the Study:
- Assess the accuracy of lip color measurement devices.
- Recommend optimal instruments and protocols for lip color analysis.
- Establish reliable methods for characterizing lip color variations.
Main Methods:
- Evaluated three instruments: VISIA-CR®, VS3200 spectrophotometer, and SpectraFace® hyperspectral imager.
- Measured natural lip color in 19 healthy French Caucasian women.
- Assessed measurement repeatability and inter-instrument agreement for colorimetric parameters (L*, C*, h).
Main Results:
- All three instruments demonstrated reliable and equivalent repeatability.
- Consistent findings on lip color heterogeneity: inferior lips are lighter, redder, less yellow, and more saturated.
- SpectraFace® showed higher agreement with the spectrophotometer and identified distinct lip color typologies.
Conclusions:
- SpectraFace® is a valuable tool for lip color characterization.
- Hyperspectral imaging combined with imaging technology enhances lip color analysis.
- The study supports the use of SpectraFace® for large-scale lip color knowledge studies.
