30 December 1998 Simulation of the real-time optical tomography reconstruction using photon trajectory application to the case of strongly scattering media
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Abstract
The abilities of the Photon Mean Path (PMP) approach being applied to laser tomography of strongly scattering (biological) objects were under study. The study was aimed to evaluate the computing speed and reconstruction accuracy of the PMP algorithm for the case of a cylindrical scattering body containing absorptive macroinhomogeneity. The simulation of the tomography reconstruction was carried out in two stages. At the first stage the diffusion equation for several locations of the instantaneous point source at the surface of the cylindrical body was solved by the FEM. At the second stage the 2D reconstruction of the absorption in the object was performed with the use of the earlier received equation for the shadow in terms of the integral along the PMP and of the polygonal approximation of the PMP shape. The simple algebraic algorithm was used for the reconstruction. The 1 ms computing time was obtained instead of 1 hour one with multi-iteration algorithms. The most attention was concentrated no the study of the dependence of the reconstruction fidelity on the time-delay of the receiving instant. The additional possibility was shown to improve the spatial resolution by known methods of image restoration.
© (1998) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Vladimir V. Lyubimov, Vladimir V. Lyubimov, Olga V. Kravtsenyuk, Olga V. Kravtsenyuk, Oleg V. Lyamtsev, Oleg V. Lyamtsev, Evgeny P. Mironov, Evgeny P. Mironov, Alexander G. Murzin, Alexander G. Murzin, Peter L. Volegov, Peter L. Volegov, Lyudmila M. Yavorskaya, Lyudmila M. Yavorskaya, } "Simulation of the real-time optical tomography reconstruction using photon trajectory application to the case of strongly scattering media", Proc. SPIE 3566, Photon Propagation in Tissues IV, (30 December 1998); doi: 10.1117/12.334376; https://doi.org/10.1117/12.334376
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