X-ray CT apparatus and image reconstruction method
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United States of America Patent
Stats
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Aug 2, 2016
Grant Date -
Apr 2, 2015
app pub date -
Mar 18, 2013
filing date -
Apr 24, 2012
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
To generate a reconstructed image suitable to characteristics of a bilaterally symmetric site and possible to an appropriate image diagnosis, a computation device: computes a back projection phase width at a rotational center and distance between the rotational center location which is a reference location and a pixel to be reconstructed; according to the distance between the rotational center location and the pixel to be reconstructed, sets a function (f1) changing the back projection phase width; computes a back projection phase width in the pixel to be reconstructed, substituting a value of the distance between the rotational center location and a pixel to be reconstructed in the function (f1); computes a view weighting, on the basis of the back projection phase width in the post-correction pixel to be reconstructed and a slope width of a view weighting function; and reconstructs a CT image, using the view weighting.
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Cited Art Landscape
Patent Citation Ranking
- 2 Citation Count
- G06T Class
- 9.57 % this patent is cited more than
- 9 Age
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