Retrieval of the optical properties of a two-layered diffusive medium from measurements of time-resolved reflectance

Fabrizio Martelli; Samuele Del Bianco; Giovanni Zaccanti

doi:10.1117/12.501057

15 October 2003 Retrieval of the optical properties of a two-layered diffusive medium from measurements of time-resolved reflectance

Fabrizio Martelli, Samuele Del Bianco, Giovanni Zaccanti

Author Affiliations +

Proceedings Volume 5138, Photon Migration and Diffuse-Light Imaging; (2003) https://doi.org/10.1117/12.501057
Event: European Conferences on Biomedical Optics 2003, 2003, Munich, Germany

Abstract

A procedure for retrieving the optical properties of a two-layered diffusive medium based on an exact analytical solution of the time dependent diffusion equation and on multidistance reflectance data is presented. The method overcomes some limitations of previously developed procedures. Five parameters have been always fitted: the absorption and the reduced scattering coefficient of both layers and the thickness of the first layer. The results obtained have shown that this procedure does not require an initial guess for the unknown optical parameters fitted, whilst the start value for the thickness of the first layer needs to be estimated within an error of about 50%. Time resolved measurements of diffuse reflectance have been generated with Monte Carlo simulations. A particular attention has been devoted to determine the optical properties of the muscle with the subcutaneous fat layer.

Citation Download Citation

Fabrizio Martelli, Samuele Del Bianco, and Giovanni Zaccanti "Retrieval of the optical properties of a two-layered diffusive medium from measurements of time-resolved reflectance", Proc. SPIE 5138, Photon Migration and Diffuse-Light Imaging, (15 October 2003); https://doi.org/10.1117/12.501057

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available