Abstract

The robustness of a random walk model that uses time-dependent contrast functions to quantify the cross-section and the corrected scattering and absorption coefficients of optically abnormal targets from time-of-flight (TOF) data obtained in time-resolved transillumination experiments is successfully analyzed. Several independent sets of experimental TOF data are used to show that the random walk methodology is able to quantify the size and optical properties of embedded targets with an error ≤25%. The underlying theoretical assumptions of the model are tested. Finally, the effect of lateral boundaries on time-resolved measurements of light transmitted through slabs of finite thickness is considered within the framework of a random walk model.

© 2000 Optical Society of America