Scattered radiation correction method and scattered radiation correction apparatus
US7912180B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Feb 19, 2009 |
| Grant date | Mar 22, 2011 |
| Priority date | — |
| Expiry date | Feb 19, 2029 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06T2207/30004
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
Scattered radiation is estimated by using a reduced image generated from a projection image, and the scattered radiation image of the projection image is acquired by enlargement processing. The scattered radiation correction of the projection image is executed by subtracting the obtained scattered radiation image from the projection image. In addition, when a primary X-ray image and a scattered radiation image in each projection direction are to be obtained by sequential approximation calculation, a primary X-ray image which has already been identified in an adjacent projection direction is used as a first estimated value (initially set value) in next sequential calculation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.