ropagation of diffuse light in a turbid medium ith multiple spherical inhomogeneities
نویسنده
چکیده
We develop a fast and accurate solver for the forward problem of diffusion tomography in the case of several spherical inhomogeneities. The approach allows one to take into account multiple scattering of diffuse waves between different inhomogeneities. Theoretical results are illustrated with numerical examples; excellent numerical convergence and efficiency are demonstrated. The method is generalized for the case of additional planar diffuse–nondiffuse interfaces and is therefore applicable to the half-space and slab imaging geometries. © 2004 Optical Society of America OCIS codes: 170.0170, 170.3660.
منابع مشابه
Propagation of diffuse light in a turbid medium with multiple spherical inhomogeneities.
We develop a fast and accurate solver for the forward problem of diffusion tomography in the case of several spherical inhomogeneities. The approach allows one to take into account multiple scattering of diffuse waves between different inhomogeneities. Theoretical results are illustrated with numerical examples; excellent numerical convergence and efficiency are demonstrated. The method is gene...
متن کاملScattering of diffuse photon density waves by spherical inhomogeneities within turbid media: analytic solution and applications.
We present an analytic solution for the scattering of diffuse photon density waves by spherical inhomogeneities within turbid media. The analytic result is compared to experimental measurements. Close agreement between theory and experiment permits the use of the theory to determine the properties of unknown sphere-like objects embedded in turbid media. The analytic solution is extended to enco...
متن کاملFluorescent diffuse photon density waves in homogeneous and heterogeneous turbid media: analytic solutions and applications.
We present analytic solutions for fluorescent diffuse photon density waves originating from fluorophores distributed in thick turbid media. Solutions are derived for a homogeneous turbid medium containing a uniform distribution of fluorophores and for a system that is homogeneous except for the presence of a single spherical inhomogeneity Generally the inhomogeneity has fluorophore concentratio...
متن کاملThree-dimensional localization and optical imaging of objects in turbid media with independent component analysis.
A new approach for optical imaging and localization of objects in turbid media that makes use of the independent component analysis (ICA) from information theory is demonstrated. Experimental arrangement realizes a multisource illumination of a turbid medium with embedded objects and a multidetector acquisition of transmitted light on the medium boundary. The resulting spatial diversity and mul...
متن کاملDiffraction tomography for biochemical imaging with diffuse-photon density waves.
The spatial structure of optically heterogeneous turbid media is probed with diffusive light. Projection images are obtained experimentally by deconvolution of the scattered diffuse-photon density waves on a planar boundary by use of a fast Fourier transform. The method is very fast, permitting object localization and characterization in ~1000 volume-element samples on subsecond computational t...
متن کامل