Simultaneous scattering and absorption images of heterogeneous media using diffusive waves within the Rytov approximation
Simultaneous scattering and absorption images of heterogeneous media using diffusive waves within the Rytov approximation
复制标题
使用 Rytov 近似内的扩散波同时绘制异质介质的散射和吸收图像
DOI:
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发表时间:
1995
期刊:
影响因子:
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通讯作者:
A. Yodh
中科院分区:
文献类型:
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作者:
M. A. O'Leary;D. Boas;B. Chance;A. Yodh
In this work we compare the Born and Rytov approximations for frequency-domain diffusing wave tomography. We confirm that the Rytov approximation gives a more accurate reconstruction of the absorptive properties. In addition, the natural separation of amplitude and phase within the Rytov approximation presents the possibility for image reconstruction algorithms which use either the phase shift or the amplitude decay of the diffusive waves. We demonstrate this effect, and apply these algorithms to simultaneously reconstruct the scattering and absorption properties of heterogeneous turbid media.