Correction for source switching in multi energy scanner
US8483360B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 12, 2009 |
| Grant date | Jul 9, 2013 |
| Priority date | — |
| Expiry date | Jul 10, 2029 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06T2211/408
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
The techniques described herein provide for correcting projection data that comprises contamination due to source switching in a multi energy scanner. The correction is a multi-neighbor correction. That is, it uses data from at least two other views of an object (e.g., generally a previous view and a subsequent view) to correct a current view of the object. The multi-neighbor correction may use one or more correction factors to determine how much data from the other two views to use to correct the current view. The correction factor(s) are determined based upon a calibration that utilizes image space data and/or projection space data of a phantom. In this way, the correction factor(s) account for source leakage that occurs in multi energy scanners.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.