| 发明名称 |
SYSTEM AND METHOD OF ITERATIVE IMAGE RECONSTRUCTION FOR COMPUTED TOMOGRAPHY |
| 摘要 |
A system and method include acquisition of projection data from a scanned object, the set of projection data comprising a plurality of projection measurements. The system and method also include calculation of a set of modified statistical weights from the projection data, wherein a respective modified statistical weight of the set of modified statistical weights comprises a deviation from an inverse variance of a corresponding projection measurement of the projection data. The system and method further include reconstruction of an image of the scanned object using the set of modified statistical weights as coefficients in an iterative reconstruction algorithm. |
| 申请公布号 |
US2014369463(A1) |
申请公布日期 |
2014.12.18 |
| 申请号 |
US201313918215 |
申请日期 |
2013.06.14 |
| 申请人 |
General Electric Company ;Purdue Research Foundation ;University of Notre Dame du Lac |
发明人 |
Thibault Jean-Baptiste;Rui Xue;Srivastava Somesh;Sauer Ken David;Fu Lin;Bouman, JR. Charles Addison |
| 分类号 |
G06T11/00;G01N23/04 |
主分类号 |
G06T11/00 |
| 代理机构 |
|
代理人 |
|
| 主权项 |
1. A non-transitory computer readable storage medium having stored thereon a computer program comprising instructions, which, when executed by a computer, cause the computer to:
acquire projection data from a scanned object, the set of projection data comprising a plurality of projection measurements; calculate a set of modified statistical weights from the projection data, wherein a respective modified statistical weight of the set of modified statistical weights comprises a deviation from an inverse variance of a corresponding projection measurement of the projection data; and reconstruct an image of the scanned object using the set of modified statistical weights as coefficients in an iterative reconstruction algorithm. |
| 地址 |
Schenectady NY US |
