In vivo measurement of skin microrelief using photometric stereo in the presence of interreflections

Sohaib, A., Farooq, A., Atkinson, G., Smith, L., Smith, M. and Warr, R. (2013) In vivo measurement of skin microrelief using photometric stereo in the presence of interreflections. Journal of the Optical Society of America A. ISSN 1084-7529 Available from: http://eprints.uwe.ac.uk/18487

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Abstract/Description

This paper proposes and describes an implementation of a novel photometric stereo based technique for in vivo assessment of three-dimensional (3D) skin topography in the presence of interreflections. The proposed method illuminates skin with red, green, and blue colored lights and uses the resulting variation in surface gradients to mitigate the effects of interreflections. Experiments were carried out on Caucasian, Asian and African American subjects to demonstrate the accuracy of our method and to validate the measurements produced by our system. Our method produced significant improvement in 3D surface reconstruction for all Caucasian, Asian and African American skin types. The results also illustrate the differences in recovered skin topography due to non-diffuse Bidirectional reflectance distribution function (BRDF) for each color illumination used, which also concur with the existing multispectral BRDF data available for skin.

Item Type:Article
Uncontrolled Keywords:in vivo, skin microrelief, photometric stereo, interreflections
Faculty/Department:Faculty of Environment and Technology
ID Code:18487
Deposited By: Professor M. Smith
Deposited On:22 Jan 2013 12:36
Last Modified:26 Oct 2016 17:25

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