Radiation imaging apparatus and radiation imaging system
US11360034B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 17, 2020 |
| Grant date | Jun 14, 2022 |
| Priority date | — |
| Expiry date | Nov 11, 2040 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06T2207/30004
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A radiation imaging apparatus is provided. The apparatus includes an imaging unit including pixels and a control unit. Each of the pixels includes a conversion unit and a sample/hold circuit. The control unit causes the imaging unit to perform first imaging and second imaging after the first imaging to generate one energy subtraction image, and controls a timing of causing the sample/hold circuit in the first imaging to sample a first image signal obtained by the first imaging and a timing of causing the sample/hold circuit in the second imaging to sample a second image signal obtained by the second imaging in accordance with radiation irradiation conditions set in advance so as to reduce a difference between an amount of noise contained in the first image signal and an amount of noise contained in the second image signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.