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Optica Publishing Group
  • Journal of the Optical Society of Korea
  • Vol. 13,
  • Issue 3,
  • pp. 304-309
  • (2009)

Optical Skin-fat Thickness Measurement Using Miniaturized Chip LEDs: A Preliminary Human Study

Open Access Open Access

Abstract

We tested the feasibility of measuring fat thickness using a miniaturized chip LED sensor module, testing 12 healthy female subjects. The module consisted of a single detector and four sources at four different source-detector distances (SD). A segmental curve-fitting procedure was applied, using an empirical algorithm obtained by Monte-Carlo simulation, and fat thicknesses were estimated. These thicknesses were compared to computed-tomography (CT) results; the correlation coefficient between CT and optical measurements was 0.932 for bicep sites. The mean percentage error between the two measurements was 13.12%. We conclude that fat thickness can be efficiently measured using the simple sensor module.

© 2009 Optical Society of Korea

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