Radiation image pick-up device and image processing method
US9526467B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jan 25, 2013 |
| Grant date | Dec 27, 2016 |
| Priority date | — |
| Expiry date | Nov 23, 2033 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06T2207/10116
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
Irrespective of the layout, moving path, and moving range of the X-ray source and the detector, a highly precise image is acquired, in a similar manner as an X-ray CT scanner that is capable of acquiring a measured image using a rotation angle of 180 degrees or more. A measured image detected by the detector is converted into a rotationally measured image that is acquired by rotationally moving the X-ray source and the detector along concentric circular paths. Then, the rotationally measured image at every measurement angle is provided with a weight that gives intensity variation equivalent to that of the reconstructed image obtained from the rotationally measured images acquired by the measurement using the rotation angle range of 180 degrees, a reconstruction operation is performed, and a reconstructed image is obtained.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.