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Inverse reconstruction of three-dimensional tomographic images of objects in turbid media from time-sliced two-dimensional transmission measurements

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Time-sliced two-dimensional intensity distribution of transmitted light measured using a time-gated imaging system is used to reconstruct three-dimensional images of an object inside a turbid medium. The inversion algorithm combines a two-dimensional matrix inversion with a one-dimensional Fourier transform inversion in cylindrical coordinates for a fast three-dimensional image reconstruction. A L-curve method is used for choosing suitable regularization parameters. The method was used to reconstruct images of an absorbing object located inside a highly scattering turbid medium using both simulated and experimental data.

© 1998 Optical Society of America

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