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In three-dimensional (3-D) millimeter-wave (MMW) holographic imaging, high cross-range resolution images can be achieved by synthetic aperture technique. However, the low range resolution that is always limited by the system bandwidth may cause the range profile discontinuous. To overcome this limitation, we present a range resolution enhancement (RRE) algorithm to reconstruct 3-D MMW images with...
In recent years, spectral CT with photon counting detectors (PCDs) has exhibited more advantages compared to conventional CT systems. Spectral CT has the potential to substantially advance CT imaging by reducing image noise and dose, improving contrast and target specificity, and enabling functional imaging with special molecular markers (e.g. Gold nanoparticles). The current PCDs, however, is difficult...
In recent years, the dynamic CT technology has attracted more and more attentions in medical and industrial applications. Instead of increasing the rotation speed of the gantry because of the mechanical limits, a more feasible method is to increase the amount of x-ray sources and detectors like the dual-source CT of Siemens. This paper focuses high resolution CT imaging (e.g. 50µm) of in vivo human...
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