Imaging of a stratified tissue using the Green function technique

Jinpin Ying; Wei Sun

doi:10.1117/12.224174

9 October 1995 Imaging of a stratified tissue using the Green function technique

Jinpin Ying, Wei Sun

Proceedings Volume 2570, Experimental and Numerical Methods for Solving Ill-Posed Inverse Problems: Medical and Nonmedical Applications; (1995) https://doi.org/10.1117/12.224174
Event: SPIE's 1995 International Symposium on Optical Science, Engineering, and Instrumentation, 1995, San Diego, CA, United States

Abstract

In the present paper, we consider that a planar laser pulse falls obliquely on the surface of a stratified tissue slab. The Green function approach is developed to reconstruct two optical parameters of the stratified tissue simultaneously. By analyzing the strucutre of the fundamental solution, the transport equation of the Green function and the explicit form of the initial condition are derived. The initial condition of Green function is found that correlates to the parameters of tissue and incident angle. By the characteristic method, the measurable boundary data are propagated to the initial value layer by layer for each incident angle. The scattering and absorption coefficient of tissue are then reconstructed simultaneously layer by layer using the explicit expression of the initial condition of Green fucntion. A detailed algorithm for the reconstruction is presented and an imaging picture as a numerical examples is given.

Citation Download Citation

Jinpin Ying and Wei Sun "Imaging of a stratified tissue using the Green function technique", Proc. SPIE 2570, Experimental and Numerical Methods for Solving Ill-Posed Inverse Problems: Medical and Nonmedical Applications, (9 October 1995); https://doi.org/10.1117/12.224174

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