Method and apparatus for the artifact-reduced detection of a 3D object in tomographic imaging
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United States of America Patent
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May 8, 2012
Grant Date -
Aug 28, 2008
app pub date -
Feb 11, 2008
filing date -
Feb 23, 2007
priority date (Note) -
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Abstract
In order to regularize a reconstruction method associated with computed tomography (CT), in at least one example embodiment, information relating to the statistics of the attenuation values of the reconstructed object is also included in the form of the logarithmic probability function of the attenuation values. This information can be obtained from the regions of those image parts which are still completely contained in a scanning field of view (SFOV), but nevertheless lie in the vicinity of the region where the object leaves the SFOV. Furthermore, the information may be used in an algebraic reconstruction method by adding a boundary condition term to the cost function to be minimized.
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