发明授权
- 专利标题: CT image reconstruction in the extended field of view
- 专利标题(中): CT图像重建在扩展视野中
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申请号: US13869081申请日: 2013-04-24
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公开(公告)号: US09495769B2公开(公告)日: 2016-11-15
- 发明人: Herbert Bruder , Harald Schöndube
- 申请人: Herbert Bruder , Harald Schöndube
- 申请人地址: DE Munich
- 专利权人: SIEMENS AKTIENGESELLSCHAFT
- 当前专利权人: SIEMENS AKTIENGESELLSCHAFT
- 当前专利权人地址: DE Munich
- 代理机构: Harness, Dickey & Pierce, P.L.C.
- 优先权: DE102012207629 20120508
- 主分类号: G06T11/00
- IPC分类号: G06T11/00 ; A61B6/00
摘要:
A method is disclosed for the reconstruction of image data of an object under examination from measured data, wherein the measured data has been acquired during a relative rotational movement between a radiation source of a computed tomography system and the object under examination. A delimited area between the radiation source and a detector represents a field of view, in respect of which measured data can be acquired. During the measured data acquisition, parts of the object under examination were located at least partly outside of the field of view. A reconstruction is carried out of first image data from the measured data. The first image data is modified via a threshold value comparison, and the modified data is processed with a morphological filter, and projection data is calculated. The measured data is modified using the projection data, and, second image data is reconstructed.
公开/授权文献
- US20130301894A1 CT IMAGE RECONSTRUCTION IN THE EXTENDED FIELD OF VIEW 公开/授权日:2013-11-14
信息查询
IPC分类:
G | 物理 |
G06 | 计算;推算或计数 |
G06T | 一般的图像数据处理或产生 |
G06T11/00 | 2D〔二维〕图像的生成 |