6533b7d4fe1ef96bd1262077
RESEARCH PRODUCT
Speckle correlation technique to determine roughness in the dermatologic interval.
Rosario SalvadorF. DalmasesRosa CibriánJ MontillaM. BuendíaCecili Macián Romerosubject
Materials scienceRadiological and Ultrasound TechnologyField (physics)business.industrySurface PropertiesPlane waveSurface finishLaserlaw.inventionSpeckle patternOpticslawPhotogrammetryRange (statistics)HumansRadiology Nuclear Medicine and imagingProfilometerbusinessFOIL methodSkindescription
A non-invasive method is proposed to determine human skin roughness. The technique is based on measurement of the correlation between two field distributions scattered by a metallised triafol (cellulose acetate foil) replica of the epidermal area to be analysed. The two speckle patterns are produced from the same rough surface illuminated by two coherent plane waves (He-Ne laser) under two slightly different angles. The accuracy of the method is highlighted by measurements made on a set of standard samples with roughnesses previously determined by mechanical profilometry. Analysis of the results indicates a precision of around 10%, and an applicability within the interest range of very rough surfaces in excess of 4-5 microns.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 1988-08-01 | Physics in medicine and biology |