Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 6 of 6 for “"limited-angle tomography"”.
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Limited angle tomography
This thesis investigates the limited angle tomography problem where axial reconstructions are produced from few measured projection views covering a 100° angular range. Conventional full angle tomography requires at least a 180° range of projection views of the patient at a fine angular spacing. …
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Detector positioning in a field-deployable limited-angle gamma ray emission tomography system
… register relevant data. This technique is called Tomography, and it uses mathematical algorithms to process and analyze the data that will eventually form or reconstruct the image of the object of interest. Nevertheless, if a sample or detector rotation is not achievable due to dimension …
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Simulation of X-ray phase imaging on integrated circuits
… foundation for future use as a forward model in limited-angle tomography or other inverse problems approaches (e.g neural networks) to reconstruct IC layout from x-ray diffraction images. In particular, it is hoped that the simulation presented here can be used to train neural networks that will …
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2-D radio imaging of equatorial ionospheric plasma depletions with the C/NOFS satellite: algorithms and results
… signals by the Coherent Electromagnetic Radio Tomography (CERTO) beacons on board the Communications/Navigation Outage Forecasting System (C/NOFS) satellite, measured by a ground array of receivers located in a near-horizontal line around -12 degrees latitude. The resulting signals yield a set …
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Development and tomographic reconstruction of an innovative MBI device for the early breast cancer diagnosis
… lesion and then increasing sensitivity or limited angle tomography (LAT) for a 3-D reconstruction of the breast lesion and its depth localization. The current work has been focused on the improvements of the MBI system in terms of more detailed calibration and characterization in realistic …
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Ανάπτυξη συστήματος τομογραφικής απεικόνισης σε εξομοιωτή ακτινοθεραπείας
… on the image formation plane for all viewing angles and subsequently, synthesizing its blurred image on the plane of interest. There are no restrictions as to the number and the location of the planes to be removed. The technique can be modified to suit any reconstruction algorithm. The …