Ordered subsets with momentum for X-ray CT image reconstruction
US9489752B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 4, 2013 |
| Grant date | Nov 8, 2016 |
| Priority date | — |
| Expiry date | Dec 28, 2033 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06T2211/424
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
Methods, systems, and non-transitory computer readable media for image reconstruction are presented. Measured data corresponding to a subject is received. A preliminary image update in a particular iteration is determined based on one or more image variables computed using at least a subset of the measured data in the particular iteration. Additionally, at least one momentum term is determined based on the one or more image variables computed in the particular iteration and/or one or more further image variables computed in one or more iterations preceding the particular iteration. Further, a subsequent image update is determined using the preliminary image update and the momentum term. The preliminary image update and/or the subsequent image update are iteratively computed for a plurality of iterations until one or more termination criteria are satisfied.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.