Optimized implementation of back projection for computed tomography (CT)
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United States of America Patent
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Jul 23, 2013
Grant Date -
Jul 26, 2012
app pub date -
Jan 20, 2012
filing date -
Jan 21, 2011
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Abstract
The disclosure relates generally to a method of three dimensional (3D) tomographic volume reconstruction for computed tomography (CT) using vector processors and more specifically to an optimized implementation which pre-computes back projection weights and perspective geometry data associated with a given CT device as down-sampled tables. The down-sampled perspective geometry data and the weight table are interpolated dynamically as part of the volume reconstruction process for an object scanned using the given CT device.
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