Title :
Comparison of different reconstruction algorithms for image reconstruction in metamaterial aperture based imaging system
Author :
Yurduseven, Okan ; Gollub, Jonah ; Odabasi, Hayrettin ; Imani, Mohammadreza F. ; Lipworth, Guy ; Rose, Alec ; Trofetter, Parker ; Smith, David R.
Author_Institution :
Dept. of Electr. & Comput. Eng., Duke Univ., Durham, NC, USA
Abstract :
We investigate the performance of various image reconstruction algorithms for the design of a metamaterial aperture-based imaging system. The metamaterial imaging system consists of a transmitting metamaterial aperture panel and a receiving low-gain probe antenna. Imaging of a 3 cm resolution target is performed using a number of reconstruction algorithms, including pseudo-inverse, matched filter, conjugate gradient squares (CGS), and two-step iterative shrinkage/thresholding (TwIST) methods. The differing quality of the resulting reconstructed images is shown as a function of these reconstruction techniques.
Keywords :
conjugate gradient methods; image reconstruction; iterative methods; matched filters; microwave imaging; microwave metamaterials; conjugate gradient squares method; image reconstruction; matched filter method; metamaterial aperture based imaging system; pseudoinverse method; receiving low-gain probe antenna; reconstruction algorithms; transmitting metamaterial aperture panel; two-step iterative shrinkage/thresholding method; Image reconstruction; Image resolution; Matched filters; Metamaterials; Reconstruction algorithms; Signal to noise ratio; Metamaterial imager; image reconstruction; metamaterials;
Conference_Titel :
Antennas and Propagation (EuCAP), 2015 9th European Conference on
Conference_Location :
Lisbon
