Real‐time wrinkle evaluation method using Visual Illusion‐based image feature enhancement System

• Published in: Skin research and technology Vol. 29; no. 1; pp. e13206 - n/a
• Main Authors: Fujino, Saori, Iwanaga, Tetsuro
• Format: Journal Article
• Language: English
• Published: England John Wiley & Sons, Inc 01.01.2023; John Wiley and Sons Inc
• Subjects: Aging; digital image; Digital imaging; Effectiveness; Emollients; Evaluation; evaluation method; Facial Expression; Female; Fourier transforms; Humans; Illusions; Image Enhancement; Male; Methods; Moving images; Nicotinamide; Original; Skin; Skin Aging; visual illusion‐based image enhancement; Visual perception; wrinkle; United States > US; Japan; visual illusion-based image enhancement; digital image; aging; evaluation method; wrinkle
• ISSN: 0909-752X; 1600-0846; 1600-0846
• DOI: 10.1111/srt.13206

Background Several advanced methods for evaluating wrinkles are currently available, however, with limitations in their application because wrinkle structures change in response to facial expressions and surrounding environments. A Visual Illusion‐based image feature enhancement System (VIS) was used to develop a real‐time evaluation method. Objectives This study expands the VIS application into the wrinkle evaluation method by adjusting VIS to evaluate facial wrinkles, evaluating the age‐dependent wrinkles, and validating it for real‐time wrinkle evaluation. Methods Wrinkles in various Japanese men and women were evaluated using VIS and the current methods. Furthermore, the effectiveness of an eye cream containing niacinamide was evaluated before and after the 4‐week treatment. Results VIS qualitatively detects even fine wrinkles and numerically records them without any special instrument. Moreover, VIS can be applied to moving images, revealing the effectiveness of the antiwrinkle formulation qualitatively and quantitatively even when the subjects are smiling. Conclusion This paper presents an epoch‐making wrinkle evaluation method that is qualitative and quantitative, with high sensitivity in real‐time and relies solely on digital images without any difficulties. Therefore, these results imply that this method enables the wrinkle evaluation under real‐life conditions.