Title :
Processing microwave experimental data with the distorted Born iterative method of nonlinear inverse scattering
Author :
Lin, J.H. ; Lu, C.C. ; Wang, Y.M. ; Chew, W.C. ; Mallorqui, J.J. ; Broquetas, A. ; Pichot, C. ; Bolomey, J.-C.
Author_Institution :
Dept. of Electr. Comput Eng., Illinois Univ., Urbana, IL, USA
fDate :
June 28 1993-July 2 1993
Abstract :
The Born-iterative method (BIM) and the distorted-Born-iterative method (DBIM) have been proposed and verified as methods of solving the nonlinear inverse scattering problem for dielectric scatterers. The continuous-wave (CW) implementation of the DBIM was recently used to process microwave scattering data. Previously, diffraction tomography was used to process the data (a microwave image of human arm), resulting in an image with a small dynamic range due to the high contrasts present in the human body. Using the DBIM, the processed image was significantly improved. It is seen that upon iterating with DBIM, the contrast of the image is drastically enhanced.<>
Keywords :
DWBA; biomedical imaging; electromagnetic wave scattering; inverse problems; iterative methods; medical image processing; microwave imaging; contrasts; dielectric scatterers; distorted Born iterative method; dynamic range; human body; microwave image; nonlinear inverse scattering; Acoustic distortion; Acoustic scattering; Cost function; Electromagnetic scattering; Forward contracts; Inverse problems; Iterative methods; Microwave theory and techniques; Nonlinear distortion; Predistortion;
Conference_Titel :
Antennas and Propagation Society International Symposium, 1993. AP-S. Digest
Conference_Location :
Ann Arbor, MI, USA
Print_ISBN :
0-7803-1246-5
DOI :
10.1109/APS.1993.385298
