Experimental validation of a linear model for data reduction in chirp-pulse microwave CT.
Chirp-pulse microwave computerized tomography (CP-MCT) is an imaging modality developed at the Department of Biocybernetics, University of Niigata (Niigata, Japan), which intends to reduce the microwave-tomography problem to an X-ray-like situation. We have recently shown that data acquisition in CP-MCT can be described in terms of a linear model derived from scattering theory. In this paper, we validate this model by showing that the theoretically computed response function is in good agreement with the one obtained from a regularized multiple deconvolution of three data sets measured with the prototype of CP-MCT. Furthermore, the reliability of the model as far as image restoration in concerned, is tested in the case of space-invariant conditions by considering the reconstruction of simple on-axis cylindrical phantoms.
Miyakawa
M
M
Department of Biocybernetics, Faculty of Engineering, Niigata University, Japan.
Orikasa
K
K
Bertero
M
M
Boccacci
P
P
Conte
F
F
Piana
M
M
D003198:Computer Simulation; D007089:Image Enhancement / Q000379:methods*; D008872:Microwaves; D015233:Models, Statistical; D019047:Phantoms, Imaging; D015203:Reproducibility of Results; D012680:Sensitivity and Specificity; D014057:Tomography, X-Ray Computed / Q000295:instrumentation / Q000379:methods*