| 发明名称 |
SYSTEM AND METHOD FOR RECALIBRATING A MONOCHROMATIC IMAGE |
| 摘要 |
A method includes receiving a monochromatic image comprising a head of a subject from a Computed Tomography (CT) scanner and detecting a petrous bone of the head in the monochromatic image. The method further includes determining a linear attenuation coefficient of at least one petrous voxel representing the petrous bone and calculating a mass attenuation coefficient of the petrous voxel based on the linear attenuation coefficient and a density of the petrous bone. The method also includes computing a monochromatic energy level of the monochromatic image based on the mass attenuation coefficient of the petrous voxel and recalibrating the monochromatic image corresponding to the computed monochromatic energy level to the desired monochromatic energy level. |
| 申请公布号 |
US2016171694(A1) |
申请公布日期 |
2016.06.16 |
| 申请号 |
US201514964052 |
申请日期 |
2015.12.09 |
| 申请人 |
General Electric Company |
发明人 |
Das Bipul;Narayanan Ajay;Shah Pratik |
| 分类号 |
G06T7/00;A61B6/03;A61B6/00;G06T11/00 |
主分类号 |
G06T7/00 |
| 代理机构 |
|
代理人 |
|
| 主权项 |
1. A method for recalibrating a monochromatic image, the method comprising:
receiving a monochromatic image comprising a head of a subject from a computed tomography (CT) scanner; detecting a petrous bone of the head in the monochromatic image; determining a linear attenuation coefficient of at least one petrous voxel representing the petrous bone; calculating a mass attenuation coefficient of the petrous voxel based on the linear attenuation coefficient and a density of the petrous bone; computing a monochromatic energy level of the monochromatic image based on the mass attenuation coefficient of the petrous voxel; and recalibrating the monochromatic image corresponding to the computed monochromatic energy level to the desired monochromatic energy level. |
| 地址 |
Schenectady NY US |
