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Virtual endoscopy is a new development of diagnostic imaging, covering a wide range of potential clinical applications. This paper introduced a system framework for virtual endoscopy. Our research efforts concentrated on mesh smoothing, automated centerline extraction and view-dependent...
In this paper an algorithm is reported for enhancing low contrast features in mammograms. Some features barely visible or not visible to the naked eye in original images can be observed clearly in the corresponding filtered images along with those features that are readily seen. The main...
The Kinestatic Charge Detector (KCD) technique of projection radiography shows promise when used for dual-energy imaging, which may be performed either by taking two separate exposures at different kVp settings (the dual-kVp method) or by taking a single exposure with the KCD segmented into a...
A new and accurate method to determine the mass attenuation coefficient, μm, for low photon energy employing NaI(Tl) X-ray detector and radioactive source is described. Effect of size of collimator and the selection of width of photopeak for integration on the contribution from scattered photons...
In this paper, we first demonstrate that two ordered-subset simultaneous algebraic reconstruction techniques (OS-SART) can be heuristically derived from the perspective of data rectification. Then, we study the convergence in the framework of our recent work on the OS version of the Landweber...
X-ray diffraction imaging is an important analytical tool in a variety of biological and medical imaging applications. However, the images obtained are often degraded by the point spread function (PSF) of the imaging system. An accurate knowledge of the system PSF is essential for a successful...
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