Iterative reconstruction with system optics modeling using filters
US10417795B2 · kind B2 · utility
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Key dates
| Filing date | Apr 8, 2015 |
| Grant date | Sep 17, 2019 |
| Priority date | — |
| Expiry date | Apr 8, 2035 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06T2211/424
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A CT imaging apparatus has processing circuitry that is configured to obtain projection data collected by a CT detector during a scan of an object. The processing circuitry is also configured to perform iterative reconstruction of the projection data to generate a current image. The iterative reconstruction includes filtering forward-projected data during backprojection or filtering image data prior to forward projection to model system optics. The processing circuitry is also configured to combine the current image with a previously-obtained image to generate an updated image.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.