An improved exact filtered backprojection algorithm for spiral computed tomography
نویسندگان
چکیده
منابع مشابه
Theoretically Exact Filtered Backprojection-Type Inversion Algorithm for Spiral CT
Proposed is a theoretically exact formula for inversion of data obtained by a spiral computed tomography (CT) scan with a two-dimensional detector array. The detector array is supposed to be of limited extent in the axial direction. The main property of the formula is that it can be implemented in a truly filtered backprojection fashion. First, one performs shift-invariant filtering of a deriva...
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ژورنال
عنوان ژورنال: Advances in Applied Mathematics
سال: 2004
ISSN: 0196-8858
DOI: 10.1016/s0196-8858(03)00099-x