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A solution of electromagnetic imaging using pseudoinverse transformation.

M M Ney, A M Smith, S S Stuchly

IEEE Transactions on Medical Imaging

|January 1, 1984

Summary

A novel algorithm reconstructs dielectric properties of cylinders using electromagnetic imaging. This method accurately determines material characteristics from scattered waves, even with measurement errors.

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Published on: February 12, 2014

Area of Science:

Electromagnetics
Applied Physics
Computational Imaging

Background:

Electromagnetic imaging is crucial for characterizing materials.
Reconstructing material properties from scattered fields presents challenges.
Dielectric cylinders require accurate constitutive parameter determination.

Purpose of the Study:

To propose a new reconstruction algorithm for electromagnetic imaging.
To reconstruct constitutive parameter distributions of dielectric cylinders.
To evaluate the algorithm's performance with arbitrary cross-sections.

Main Methods:

Development of a novel reconstruction algorithm.
Application of the pseudoinverse transformation.
Utilizing scattered electromagnetic fields from dielectric cylinders.
Computer simulations for validation.

Main Results:

The algorithm successfully reconstructs constitutive parameters.
Excellent results were achieved for thin dielectric cylinders.
The method is robust to realistic uncertainties in scattered field measurements.
Effective for transverse magnetic (TM) wave irradiation.

Conclusions:

The proposed algorithm offers an effective solution for dielectric cylinder characterization.
The pseudoinverse transformation enhances reconstruction accuracy.
The method shows promise for practical electromagnetic imaging applications.