Title :
Microwave imaging-complex permittivity reconstruction with a Levenberg-Marquardt method
Author :
Franchois, Ann ; Pichot, Christian
Author_Institution :
Lab. des Signaux et Syst., CNRS, Gif-sur-Yvette, France
fDate :
2/1/1997 12:00:00 AM
Abstract :
This paper refers to quantitative reconstruction of the dielectric and conductive property distributions of biological objects by means of active microwave imaging. An iterative reconstruction algorithm based on the Levenberg-Marquardt method is tested with synthetic data. The influence of the receiver geometry is investigated and two methods for choosing the regularization parameter, an empirical method and generalized cross validation (GCV) method, are examined
Keywords :
image reconstruction; iterative methods; medical image processing; microwave imaging; microwave receivers; permittivity; Levenberg-Marquardt method; active microwave imaging; biological objects; complex permittivity reconstruction; conductive property distribution; dielectric property distribution; empirical method; generalized cross validation method; iterative reconstruction algorithm; quantitative reconstruction; receiver geometry; regularization parameter; synthetic data; Acoustic imaging; Geometry; Image reconstruction; Iterative methods; Microwave imaging; Microwave theory and techniques; Optical imaging; Permittivity; Reconstruction algorithms; X-ray diffraction;
Journal_Title :
Antennas and Propagation, IEEE Transactions on
