研究目的
To develop and demonstrate laser speckle ?owgraphy (LSFG) for two-dimensional (2D) skin blood ?ow (SBF) measurements to facilitate the noninvasive comparisons of SBF between individuals.
研究成果
LSFG is effective for noninvasive and continuous SBF measurements, showing significant correlations with established methods and potential applications in medicine and cosmetology.
研究不足
The study was limited by the need for further investigation into measurement angle ranges for uneven surfaces like the nose and eye corners. Additionally, the method's applicability to other demographic groups was not explored.
1：Experimental Design and Method Selection:
The study used LSFG for SBF measurements, incorporating morphing technology with a face mesh for spatial distribution comparisons.
2：Sample Selection and Data Sources:
Healthy females in their 20s and 30s were included for measurements at different distances and angles.
3：List of Experimental Equipment and Materials:
LSFG system with a laser module, color CMOS camera, and monochrome CCD camera; polarizing filter; thermography; strain-gauge plethysmography (SPG).
4：Experimental Procedures and Operational Workflow:
Measurements were taken at specified distances and angles, with data analyzed using custom software.
5：Data Analysis Methods:
Statistical analysis included Pearson’s product–moment correlation coefficient, linear regression, and Bland–Altman analysis.
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