Open AccessComparative analysis of skin characteristics evaluation by a dermatologist and the Janus‐III measurement system
Author(s) -
Leem Sangseob,
Kim Seong Jin,
Kim Yunkwan,
Shin JoongGon,
Song Hae Jung,
Lee SeoGyeong,
Seo Jung Yeon,
Kim Kyunghoe,
You Seung Won,
Park Sun Gyoo,
Kang Nae Gyu
Publication year - 2021
Publication title -
skin research and technology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.521
H-Index - 69
eISSN - 1600-0846
pISSN - 0909-752X
DOI - 10.1111/srt.12915
Subject(s) - janus , dermatology , wrinkle , forehead , reliability (semiconductor) , medicine , biomedical engineering , computer science , surgery , programming language , gerontology , power (physics) , physics , quantum mechanics
Background The Janus‐III measurement system evaluates the overall skin characteristics such as skin pore, wrinkle, sebum, porphyrin, skin pigmentation, and skin color using high‐resolution facial images. The values are measured from five different facial areas, namely, the forehead, nose, corner of/skin below the eyes, and cheeks. Owing to its convenience and diverse measuring characteristics, Janus‐III has been widely used in skin research and the cosmetic industry in Korea. In our previous study, we revealed the consistency and reliability of the system with repeatedly measured values. Its measuring performance was investigated statistically, but to make it more reliable for academic skin research, additional verification by a professional dermatologist is needed. Materials and Methods In this study, we conducted comparative analysis of three skin characteristics (pigmented spot, skin color, and eye wrinkle) by a dermatologist and the Janus‐III measurement system. We utilized 330 image data that were cropped from the whole facial images of 330 different participants to avoid correlation among the three measuring items. Pearson's correlation coefficient exhibited similar patterns between the system and the dermatologist's findings. Results The main finding of our study was that the measured value of skin characteristics by the Janus‐III system showed clear correlation with the values evaluated by a dermatologist, especially in a pigmented spot. Conclusion Therefore, it would be a plausible idea to consider the Janus‐III system for specialized research of skin characteristics even with a small sample size.