Image domain pansharpening method and system for spectral CT with large pixel energy discriminating detectors
US9437016B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Aug 7, 2013 |
| Grant date | Sep 6, 2016 |
| Priority date | — |
| Expiry date | Jan 19, 2034 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06T2210/41
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A hybrid CT dataset is obtained from a combination of a integrating detector and a photon-counting detector. The hybrid CT dataset contains low-resolution photon-counting data and high-resolution integrating data. High-resolution panchromatic images are generated from the high-resolution integrating data, and low-resolution spectral images are generated from the low-resolution photon-counting data. The high-resolution panchromatic images inherit the resolution properties of the integrating detector while the low-resolution spectral images inherit the spectral information of the photon-counting detector. Subsequently, the low resolution spectral images are pansharpened based upon at least one high resolution panchromatic image that lacks spectral information according to a pansharpening algorithm.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.