数学
采样(信号处理)
数学分析
牙石(牙科)
计算机视觉
口腔正畸科
计算机科学
医学
滤波器(信号处理)
作者
Fioralba Cakoni,M’Barek Fares,Houssem Haddar
出处
期刊:Inverse Problems
[IOP Publishing]
日期:2006-05-02
卷期号:22 (3): 845-867
被引量:93
标识
DOI:10.1088/0266-5611/22/3/007
摘要
We investigate two imaging methods to detect buried scatterers from electromagnetic measurements at a fixed frequency. The first one is the classical linear sampling method that requires the computation of Green's tensor for the background medium. This job can be numerically very costly for complex background geometries. The second one is an alternative approach based on the reciprocity gap functional that avoids the computation of Green's tensor but requires knowledge of both the electric and magnetic fields. Numerical examples are given showing the performance of both methods.
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