ArticleJournal of biomedical optics2022
Skin chromophore mapping by smartphone RGB camera under spectral band and spectral line illumination.
Article in Journal of biomedical optics, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 7 papers.
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Who cites it
7 citing papers in PubMed, 13 citations in OpenAlex.
- Skin malformation assessment by triple wavelength imaging.Frontiers in medicine · 2026Article
- Energy-Based Skin Rejuvenation: A Review of Mechanisms and Thermal Effects.Journal of cosmetic dermatology · 2025Review
- Triple Spectral Line Imaging of Whole-Body Human Skin: Equipment, Image Processing, and Clinical Data.Sensors (Basel, Switzerland) · 2024Article
- Blind Separation of Skin Chromophores from Multispectral Dermatological Images.Diagnostics (Basel, Switzerland) · 2024Article
- Noncontact Sensors for Vital Signs Measurement: A Narrative Review.Medical science monitor : international medical journal of experimental and clinical research · 2024Review
- Optical imaging technologies forCurrent opinion in biomedical engineering · 2023Article
- Three-dimensional representation of triple spectral line imaging data as an option for noncontact skin diagnostics.Journal of biomedical optics · 2022Article
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Authors and funding
7 authors at 1 institution in 1 country.
Funding
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Abstract
significanceMultispectral imaging enables mapping of chromophore content changes in skin neoplasms, which helps to diagnose a pathology. Different types of light sources can be used for the imaging. Design of laser-based illuminators is more complicated and, consequently, they are more expensive than LED-based illuminators. On the other hand, spectral line illumination has the advantage of less complicated calculations, since only the discrete maximum wavelengths need to be considered. Spectral band and spectral line approaches for multispectral skin diagnostics have not been compared so far. This can help to evaluate the accuracy and effectiveness of both approaches.
aimTo compare two specific illumination modalities-spectral band and spectral line illumination-from the point of performance for mapping of in vivo skin chromophores. APPROACH: Three spectral images of the same skin malformations were captured by a smartphone RGB camera with two different add-on illuminators comprising LED emitters and laser emitters, respectively. Five types of benign skin neoplasms were included in our study. Concentrations of skin melanin, oxy- and deoxy-hemoglobin at image pixel groups were calculated using the Beer-Lambert law.
resultsSkin chromophore maps and statistical analysis of mean concentrations' changes in the neoplasms compared to the surrounding skin are presented and discussed. The data of the laser emitters led to significantly higher (∼10 times) increase of the oxy-hemoglobin values in vascular neoplasms and much lower deoxy-hemoglobin values, if compared to the data obtained by the LED emitters.
conclusionsAnalysis of the obtained chromophore distribution maps and concentration variations in neoplasms led to conclusion that the spectral line illumination approach is more appropriate for this application. Considering only the peak wavelengths of illumination spectral bands leads to essentially different results if compared to those obtained by spectral line illumination and may cause misinterpretations in the clinical assessment of skin neoplasms.
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