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- W2075749325 abstract "Some optical properties of a highly scattering medium, such as tissue, can be reconstructed non-invasively by diffuse optical tomography (DOT). Since the inverse problem of DOT is severely ill-posed and nonlinear, iterative methods that update Green's function have been widely used to recover accurate optical parameters. However, recent research has shown that the joint sparse recovery principle can provide an important clue in achieving reconstructions without an iterative update of Green's function. One of the main limitations of the previous work is that it can only be applied to absorption parameter reconstruction. In this paper, we extended this theory to estimate the absorption and scattering parameters simultaneously when the background optical properties are known. The main idea for such an extension is that a joint sparse recovery step gives us unknown fluence on the estimated support set, which eliminates the nonlinearity in an integral equation for the simultaneous estimation of the optical parameters. Our numerical results show that the proposed algorithm reduces the cross-talk artifacts between the parameters and provides improved reconstruction results compared to existing methods." @default.
- W2075749325 created "2016-06-24" @default.
- W2075749325 creator A5004181326 @default.
- W2075749325 creator A5012644755 @default.
- W2075749325 date "2013-10-28" @default.
- W2075749325 modified "2023-10-17" @default.
- W2075749325 title "Joint sparsity-driven non-iterative simultaneous reconstruction of absorption and scattering in diffuse optical tomography" @default.
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- W2075749325 doi "https://doi.org/10.1364/oe.21.026589" @default.
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