Analysis of skin recovery from mechanical indentation using diffuse lighting and digital imaging

Neil T. Clancy, Martin J. Leahy, Gert E. Nilsson, Chris Anderson

Research output: Chapter in Book or Conference Publication/ProceedingConference Publicationpeer-review

Abstract

Skin behaves as a viscoelastic material, having mechanical properties composed of elastic and fluid components. Upon indentation, the fibres are stretched and fluid displaced from the compressed region. The rate of recovery from this imprint is therefore dependent on the hydration and elasticity of the skin. A reliable measurement could be applied to the assessment of clinical conditions such as oedema, rare genetic disorders such as cutis laxa and the evaluation of the 'effective age' of skin in vivo. This paper describes a new approach to the non-invasive indentation technique and a novel method of analysis. A method is proposed that tracks the skin's recovery optically from an initial strain made using a mechanical indentor, diffuse side-lighting and a CCD video-capture device. Using the blue colour plane of the image it is possible to examine the surface topography only, and track the decay of the imprint over time. Two algorithms are discussed for the extraction of information on the skin's displacement and are analysed in terms of reliability and reproducibility.

Original languageEnglish
Title of host publicationDiffuse Optical Imaging of Tissue
PublisherSPIE
ISBN (Print)0819467731, 9780819467737
DOIs
Publication statusPublished - 2007
Externally publishedYes
EventDiffuse Optical Imaging of Tissue - Munich, Germany
Duration: 19 Jun 200721 Jun 2007

Publication series

NameProgress in Biomedical Optics and Imaging - Proceedings of SPIE
Volume6629
ISSN (Print)1605-7422

Conference

ConferenceDiffuse Optical Imaging of Tissue
Country/TerritoryGermany
CityMunich
Period19/06/0721/06/07

Keywords

  • Diffuse lighting
  • Image analysis
  • Indentation method
  • Oedema
  • Skin
  • Viscoelasticity

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