System and apparatus for classifying x-ray energy into discrete levels
US8488854B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 7, 2011 |
| Grant date | Jul 16, 2013 |
| Priority date | — |
| Expiry date | Mar 20, 2032 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06T2211/408
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A system and apparatus for classifying x-ray energy into discrete levels include an imaging system comprising an x-ray source, a detector, and a DAS having a discriminator assembly configured to count photon hits in the detector. A computer causes the discriminator assembly to count photon hits in the detector having an energy level greater than or equal to first and second threshold levels during an imaging scan, wherein the second threshold level is distinct from the first threshold level. The computer further modifies the counted photon hits having an energy level greater than or equal to the first threshold level based on the counted photon hits having an energy level greater than or equal to the second threshold level and reconstructs an image based on the modified photon hits and based on the counted photon hits having an energy level greater than or equal to a second threshold level.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.