Transillumination imaging performance using time domain data

Matthias Orlt; M. Walzel; Regina Model

doi:10.1117/12.228687

18 December 1995 Transillumination imaging performance using time domain data

Matthias Orlt, M. Walzel, Regina Model

Proceedings Volume 2626, Photon Propagation in Tissues; (1995) https://doi.org/10.1117/12.228687
Event: BiOS Europe '95, 1995, Barcelona, Spain

Abstract

Light propagation in highly scattering media can be numerically simulated by solving the diffusion equation by the finite element method (FEM). Employing an iterative algorithm, the FEM solution of the forward problem is applied to the inverse imaging problem. Good test results were previously achieved when absorbers were searched in different objects. Now the reconstruction of scattering is also taken into account. Simulated measurement data are used to test and evaluate the method at various objects with tissue-like properties. Resulting problems are very ill posed. The algorithm is specially adapted to the illposedness of the problem. Improvements in reconstruction results can be achieved in two ways, first by adapting the detector arrangements and, secondly, by using a regularization strategy. The effectiveness of these methods is demonstrated by instructive examples.

Citation Download Citation

Matthias Orlt, M. Walzel, and Regina Model "Transillumination imaging performance using time domain data", Proc. SPIE 2626, Photon Propagation in Tissues, (18 December 1995); https://doi.org/10.1117/12.228687

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