基于图像分析的化妆品紧致功效评价方法研究

doi:10.3969/j.issn.1001-1803.2020.12.007

Abstract

Abstract:

Based on the evaluation of anti-aging efficacy, on the basis of image analysis method and referring to medical facial evaluation methods, by collecting the subjects’ facial images before and after using the functional cosmetics, and using computer software to analyze the changing rules of subjects’ facial feature point data, a data-based method for the study of facial skin firmness was found. It is proved that the lower half width, nasal-lip angle, eye angle A and eye angle B are statistically significant （P<0.05） , which can be used to evaluate the efficacy of anti-aging skin care products to firm and lift the face. The efficacy of the product can be evaluated by measuring the degree of change in the angle, supplement and improve the existing efficacy evaluation methods of skin care products, and make the evaluation system richer and more stereoscopic. The existing skin care efficacy evaluation methods can be supplemented and improved to make the evaluation system more abundant and stereoscopic.

Key words: facial, firming, efficacy evaluation, image analysis

CLC Number:

TQ658

YANG Ze-ru,WEI Yue-xian,FAN Zhan-hua,LIU Qi,WANG Min,ZHAO Hua. Evaluation of cosmetics firming efficacy based on image analysis[J].China Surfactant Detergent & Cosmetics, 2020, 50(12): 854-860.

Figures/Tables 8

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References 18

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标准	细则
排除标准	1 妊娠或哺乳期妇女;
	2 自述有计划怀孕,具有生育能力的女性志愿者不愿或不能采用避孕措施者;
	3 室外工作无法避免日晒者;
	4 目前或本研究开始前已参加其他临床试验研究;
	5 对化妆品有过敏或高度敏感风险者;
	6 近一周使用抗组胺药或近一个月内使用免疫抑制剂者;
	7 近两个月内受试部位应用任何抗炎药物者;
	8 受试者患有炎症性皮肤病临床末愈者,或正在接受治疗的哮喘或其他慢性呼吸系统疾病患者;
	9 在近6个月内接受抗癌化疗者;
	10 免疫缺陷或自身免疫性疾病患者或胰岛素依赖性糖尿病患者,或体质高度敏感者;
	11 测试区域接受过美容疗法;
	12 非志愿参加或不能按试验要求完成规定内容者

标志点	中文名	定义
N	鼻根点	鼻额缝的最前点,是前颅部的标志点,代表面部与颅部的结合处^[17]
LS	上唇中点	上唇移行部两弧的切线与正中矢状面的交点^[17]
LI	下唇中点	下唇移行部下缘与正中矢状面的交点^[17]
Sto	口裂点	上下唇闭合时口裂的正中点^[17]
Gn	颏下点	颏部在正中矢状面上最低的一点^[17]
Zy	颧点	也称侧颅点,颧弓上最向外侧突出的一点^[17]
Go	下颌角点	下颌角最向外、向下和向后突出的一点^[17]
En	眼内角点	在眼内角上,上下睑缘相交之点^[17]
Ex	眼外角点	在眼外角上,上下睑缘相交之点^[17]
Al	鼻翼点	鼻翼轮廓的最外侧点^[17]
Prn	鼻尖点	鼻尖部的最前、最中点^[17]
Sn	鼻下点	鼻小柱与上唇相交的最凹、最中点^[17]
A	眉头中点	眉毛起始边缘中点

名称	描述	说明
侧角度	以下颌角点为顶点,向上下两方向软组织各引一条切线,两切线相交所组成夹角	侧角度大小,其值越大,面部提升效果越好;侧角度变化率,此值越高,面部提升效果越明显
下半面宽度^[18]	连接左右两侧下颌角点所成直线（Go~Go）	下半面宽度,其值越小,面部提升效果越好;下半面宽度变化率,此值越低,面部提升效果越明显
下颌角角度	两侧下颌角点与颏下点所成夹角（Go~Gn~Go）	下颌角角度,其值越小,面部提升效果越好;下颌角角度变化率,此值越低,面部提升效果越明显
鼻唇角	连接鼻下点与下颌角点所成直线与口裂点所成夹角（Sn~Go~Sto）	鼻唇角角度,其值越大,面部提升效果越好;鼻唇角角度变化率,此值越高,面部提升效果越明显
鼻根点角度	以下颌角点为顶点向上方软组织引一条切线,另连接下颌角点与鼻根点,两线相交所成的如图所示的夹角	鼻根点角度,其值越大,面部提升效果越好;鼻根点角度变化率,此值越高,面部提升效果越明显
眼部角度A	连接眼外角点与鼻根点所成直线与同侧鼻翼点所成夹角（Al~N~Ex）	眼部角度A,其值越大,面部提升效果越好;眼部角度A变化率,此值越高,面部提升效果越明显
眼部角度B	连接眼内角点与眉头中点所成直线与眼外角点所成夹角（En~A~Ex）	眼部角度B,其值越大,面部提升效果越好;眼部角度B变化率,此值越高,面部提升效果越明显

测量参数	使用前±SE值	使用后±用后值	变化率/%	P值
侧角度	152.64±1.27	153.10±1.15	0.30	0.522
下半面宽度	110.44±0.91	108.56±1.03^***	-1.70	0.000
下颌角角度	111.32±1.33	110.84±1.26	-0.47	0.141
鼻根点角度	53.99±0.77	54.32±0.76	0.61	0.320
鼻唇角	22.20±0.43	22.94±0.43^**	3.35	0.001
眼部角度A	64.76±0.59	65.48±0.59^***	1.10	0.000
眼部角度B	45.09±0.91	46.91±0.90^**	4.04	0.000

Evaluation of cosmetics firming efficacy based on image analysis

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