scholarly journals Isotropic-resolution linear-array-based photoacoustic computed tomography through inverse Radon transform

2015 ◽  
Author(s):  
Guo Li ◽  
Jun Xia ◽  
Lei Li ◽  
Lidai Wang ◽  
Lihong V. Wang
Keyword(s):  
Computed Tomography ◽  
Radon Transform ◽  
Linear Array ◽  
Isotropic Resolution ◽  
Inverse Radon Transform ◽  
Inverse Radon

scholarly journals Pulsed excitation terahertz tomography – multiparametric approach

Open Physics ◽  
2018 ◽  
Vol 16 (1) ◽  
pp. 111-116
Author(s):  
Przemyslaw Lopato
Keyword(s):  
Computed Tomography ◽  
Radon Transform ◽  
Reconstruction Algorithm ◽  
Time Signal ◽  
Pulsed Excitation ◽  
X Ray ◽  
Inverse Radon Transform ◽  
Inverse Radon

Abstract This article deals with pulsed excitation terahertz computed tomography (THz CT). Opposite to x-ray CT, where just a single value (pixel) is obtained, in case of pulsed THz CT the time signal is acquired for each position. Recorded waveform can be parametrized - many features carrying various information about examined structure can be calculated. Based on this, multiparametric reconstruction algorithm was proposed: inverse Radon transform based reconstruction is applied for each parameter and then fusion of results is utilized. Performance of the proposed imaging scheme was experimentally verified using dielectric phantoms.

scholarly journals Inverse Radon Transform at Work

2019 ◽  
Vol 16 (6) ◽  
pp. 625-637
Author(s):  
I. R. Gabdrakhmanov ◽  
D. Müller ◽  
O. V. Teryaev
Keyword(s):  
Radon Transform ◽  
Inverse Radon Transform ◽  
Inverse Radon

scholarly journals 3D Imaging Millimeter Wave Circular Synthetic Aperture Radar

2017 ◽  
Author(s):  
Renyuan Zhang ◽  
Siyang Cao
Keyword(s):  
High Resolution ◽  
Millimeter Wave ◽  
Radon Transform ◽  
3D Imaging ◽  
Synthetic Aperture ◽  
Experimental Result ◽  
Imaging Radar ◽  
Circular Track ◽  
Inverse Radon Transform ◽  
Inverse Radon

In this paper, a new millimeter wave 3D imaging radar is proposed. The user just needs to move the radar along a circular track, a high resolution 3D imaging can be generated. The proposed radar uses the movement of itself to synthesize a large aperture in both the azimuth and elevation directions. It can utilize inverse Radon transform to resolve 3D imaging. To improve the sensing result, compressed sensing approach is further investigated. The simulation and experimental result further illustrated the design. Because a single transceiver circuit is needed, a light, affordable and high resolution 3D mmWave imaging radar is illustrated in the paper.

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