Optimized implementation of back projection for computed tomography (CT)
US8494213B2 · kind B2 · utility
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7References
20Claims
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Key dates
| Filing date | Jan 20, 2012 |
| Grant date | Jul 23, 2013 |
| Priority date | — |
| Expiry date | Jan 29, 2032 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06T2211/428
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
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.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.