Computed tomography scatter and crosstalk correction
US12266036B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 2, 2022 |
| Grant date | Apr 1, 2025 |
| Priority date | — |
| Expiry date | Apr 7, 2043 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06T2207/30108
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A control circuit accesses a memory having stored therein total detected computed tomography image signal information in a projection domain for an object, a first model representing object scatter, a second model representing background scatter, and a third model representing detector crosstalk. Prior to a reconstruction step, the control circuit processes the total detected computed tomography image signal information in the projection domain for the object as a function of each of the first model, the second model, and the third model to thereby compensate for object scatter, background scatter, and detector crosstalk by providing scatter and crosstalk-corrected computed tomography image signal information in the projection domain for the object. The control circuit can then carry out a reconstruction step using the scatter and crosstalk-corrected computed tomography image signal information in the projection domain for the object.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.