Radiographic image capturing system, image processor, and image processing method
US10628923B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 15, 2017 |
| Grant date | Apr 21, 2020 |
| Priority date | — |
| Expiry date | Nov 9, 2037 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06T2207/30008
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A radiographic image capturing system includes the following. A capturing stand includes a holder to hold radiographic image capturing devices. A radiation irradiator irradiates the radiographic image capturing devices loaded in the holder at once. An image processor generates a plurality of images based on image data acquired by the radiographic image capturing devices. The image processor removes a streaky component residing in the generated image to correct the image. Such process includes forming a smoothed image by smoothing with a low-pass filter, and subtracting an interpolation image to extract a streaky image from the smoothing image and adding the streaky image to remove the streaky component. The smoothing includes reflecting smoothing on pixels showing a subject structure using a low-pass filter with a size larger in the horizontal direction compared to pixels other than pixels showing the subject structure.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.