Computer processing techniques for streak reduction in computed tomography images
US12169885B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 25, 2022 |
| Grant date | Dec 17, 2024 |
| Priority date | — |
| Expiry date | Feb 17, 2043 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06T2211/441
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
Computer processing techniques are described for reducing streaks in computed tomography (CT) images. According to an embodiment, computer-implemented method comprises obtaining, by a system comprising a processor, a pair of CT images reconstructed from a same set of projection data, the pair comprising a first image reconstructed from the projection data using a standard reconstruction process and a second image reconstructed from the projection data using a filtering reconstruction process that results in the second image comprising a first reduced level of streaks relative to the first image. The method further comprises generating, by the system, a third image by fusing a first subset of pixels extracted from one or more non-uniform areas in the first image and a second subset of pixels extracted from one or more uniform areas in the second image, wherein the third image comprises a second reduced level of streaks relative to the first image.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.