Research Papers: Sensing

Analyzing reflectance spectra of human skin in legal medicine

[+] Author Affiliations
Liudmila Belenki

University of Freiburg, Materials Research Center Freiburg, Stefan-Meier-Straße 21, 79104 Freiburg, Germany

Vera Sterzik, Michael Bohnert

University of Würzburg, Institute of Legal Medicine, Versbacher Street 3, 97078 Würzburg, Germany

Katharina Schulz

University of Freiburg, Institute of Legal Medicine, Albertstraße 9, 79104 Freiburg, Germany

J. Biomed. Opt. 18(1), 017004 (Jan 07, 2013). doi:10.1117/1.JBO.18.1.017004
History: Received August 14, 2012; Revised November 6, 2012; Accepted November 26, 2012
Text Size: A A A

Abstract.  Our current research in the framework of an interdisciplinary project focuses on modelling the dynamics of the hemoglobin reoxygenation process in post-mortem human skin by reflectance spectrometry. The observations of reoxygenation of hemoglobin in livores after postmortem exposure to a cold environment relate the reoxygenation to the commonly known phenomenon that the color impression of livores changes from livid to pink under low ambient temperatures. We analyze the spectra with respect to a physical model describing the optical properties of human skin, discuss the dynamics of the reoxygenation, and propose a phenomenological model for reoxygenation. For additional characterization of the reflectance spectra, the curvature of the local minimum and maximum in the investigated spectral range is considered. There is a strong correlation between the curvature of specra at a wavelength of 560 nm and the concentration of O2-Hb. The analysis is carried out via C programs, as well as MySQL database queries in Java EE, JDBC, Matlab, and Python.

Figures in this Article
© 2013 Society of Photo-Optical Instrumentation Engineers

Citation

Liudmila Belenki ; Vera Sterzik ; Katharina Schulz and Michael Bohnert
"Analyzing reflectance spectra of human skin in legal medicine", J. Biomed. Opt. 18(1), 017004 (Jan 07, 2013). ; http://dx.doi.org/10.1117/1.JBO.18.1.017004


Access This Article
Sign in or Create a personal account to Buy this article ($20 for members, $25 for non-members).

Some tools below are only available to our subscribers or users with an online account.

Related Content

Customize your page view by dragging & repositioning the boxes below.

Related Book Chapters

Topic Collections

Advertisement
  • Don't have an account?
  • Subscribe to the SPIE Digital Library
  • Create a FREE account to sign up for Digital Library content alerts and gain access to institutional subscriptions remotely.
Access This Article
Sign in or Create a personal account to Buy this article ($20 for members, $25 for non-members).
Access This Proceeding
Sign in or Create a personal account to Buy this article ($15 for members, $18 for non-members).
Access This Chapter

Access to SPIE eBooks is limited to subscribing institutions and is not available as part of a personal subscription. Print or electronic versions of individual SPIE books may be purchased via SPIE.org.