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| In many tomographic imaging scenarios (e.g. x-ray tomography, electron microscopy, photo- and thermoacoustic tomgraphy) only limited-view data is available. As a consequence, only specific features of the unknown object can be reconstructed reliable, and artifacts can be generated. In this talk, we will use microlocal analysis to explain that artifacts might appear only along lines that are tangent to singularities of the original object. Moreover, we will show that by smoothly truncating the data at the ends of the angular range, the artifacts can be reduced. |
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