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- W2559488049 startingPage "120201" @default.
- W2559488049 abstract "Reconstructing the distribution of optical parameters in the participating medium based on the frequency-domain radiative transfer equation (FD-RTE) to probe the internal structure of the medium is investigated in the present work. The forward model of FD-RTE is solved via the finite volume method (FVM). The regularization term formatted by the generalized Gaussian Markov random field model is used in the objective function to overcome the ill-posed nature of the inverse problem. The multi-start conjugate gradient (MCG) method is employed to search the minimum of the objective function and increase the efficiency of convergence. A modified adjoint differentiation technique using the collimated radiative intensity is developed to calculate the gradient of the objective function with respect to the optical parameters. All simulation results show that the proposed reconstruction algorithm based on FD-RTE can obtain the accurate distributions of absorption and scattering coefficients. The reconstructed images of the scattering coefficient have less errors than those of the absorption coefficient, which indicates the former are more suitable to probing the inner structure." @default.
- W2559488049 created "2016-12-08" @default.
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- W2559488049 date "2016-11-29" @default.
- W2559488049 modified "2023-10-18" @default.
- W2559488049 title "Accurate reconstruction of the optical parameter distribution in participating medium based on the frequency-domain radiative transfer equation" @default.
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- W2559488049 doi "https://doi.org/10.1088/1674-1056/25/12/120201" @default.
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