AI-driven Remote Facial Skin Hydration and TEWL Assessment from Selfie Images: A Systematic Solution

Fuente: arXiv
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Auteurs principaux: Soh, Cecelia, Cai, Rizhao, Paul, Monalisha, Sng, Dennis, Kot, Alex
Format: Preprint
Publié: 2025
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author Soh, Cecelia
Cai, Rizhao
Paul, Monalisha
Sng, Dennis
Kot, Alex
author_facet Soh, Cecelia
Cai, Rizhao
Paul, Monalisha
Sng, Dennis
Kot, Alex
contents Skin health and disease resistance are closely linked to the skin barrier function, which protects against environmental factors and water loss. Two key physiological indicators can quantitatively represent this barrier function: skin hydration (SH) and trans-epidermal water loss (TEWL). Measurement of SH and TEWL is valuable for the public to monitor skin conditions regularly, diagnose dermatological issues, and personalize their skincare regimens. However, these measurements are not easily accessible to general users unless they visit a dermatology clinic with specialized instruments. To tackle this problem, we propose a systematic solution to estimate SH and TEWL from selfie facial images remotely with smartphones. Our solution encompasses multiple stages, including SH/TEWL data collection, data preprocessing, and formulating a novel Skin-Prior Adaptive Vision Transformer model for SH/TEWL regression. Through experiments, we identified the annotation imbalance of the SH/TEWL data and proposed a symmetric-based contrastive regularization to reduce the model bias due to the imbalance effectively. This work is the first study to explore skin assessment from selfie facial images without physical measurements. It bridges the gap between computer vision and skin care research, enabling AI-driven accessible skin analysis for broader real-world applications.
format Preprint
id arxiv_https___arxiv_org_abs_2509_06282
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle AI-driven Remote Facial Skin Hydration and TEWL Assessment from Selfie Images: A Systematic Solution
Soh, Cecelia
Cai, Rizhao
Paul, Monalisha
Sng, Dennis
Kot, Alex
Computer Vision and Pattern Recognition
Skin health and disease resistance are closely linked to the skin barrier function, which protects against environmental factors and water loss. Two key physiological indicators can quantitatively represent this barrier function: skin hydration (SH) and trans-epidermal water loss (TEWL). Measurement of SH and TEWL is valuable for the public to monitor skin conditions regularly, diagnose dermatological issues, and personalize their skincare regimens. However, these measurements are not easily accessible to general users unless they visit a dermatology clinic with specialized instruments. To tackle this problem, we propose a systematic solution to estimate SH and TEWL from selfie facial images remotely with smartphones. Our solution encompasses multiple stages, including SH/TEWL data collection, data preprocessing, and formulating a novel Skin-Prior Adaptive Vision Transformer model for SH/TEWL regression. Through experiments, we identified the annotation imbalance of the SH/TEWL data and proposed a symmetric-based contrastive regularization to reduce the model bias due to the imbalance effectively. This work is the first study to explore skin assessment from selfie facial images without physical measurements. It bridges the gap between computer vision and skin care research, enabling AI-driven accessible skin analysis for broader real-world applications.
title AI-driven Remote Facial Skin Hydration and TEWL Assessment from Selfie Images: A Systematic Solution
topic Computer Vision and Pattern Recognition
url https://arxiv.org/abs/2509.06282