Automatic system calibration method of X-ray CT
US10643354B2 · kind B2 · utility
2Cited by
5References
30Claims
0Family size
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Key dates
| Filing date | Mar 21, 2016 |
| Grant date | May 5, 2020 |
| Priority date | — |
| Expiry date | Aug 28, 2036 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06T2211/424
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
Systems and methods for geometric calibration and image reconstruction in computed tomography (CT) scanning using iterative reconstruction algorithms are provided. An iterative reconstruction algorithm can be used to reconstruct an improved image, and then the improved image can be used to adjust inaccurate parameters by using a Locally Linear Embedding (LLE) method. Adjusted parameters can then be used to reconstruct new images, which can then be used to further adjust the parameters. The steps of this iterative process can be repeated until a quality threshold is met.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.