发明授权
US08175361B2 Method and apparatus for the artifact-reduced detection of a 3D object in tomographic imaging
有权
用于在断层成像中3D物体的伪像检测的方法和装置
- 专利标题: Method and apparatus for the artifact-reduced detection of a 3D object in tomographic imaging
- 专利标题(中): 用于在断层成像中3D物体的伪像检测的方法和装置
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申请号: US12068678申请日: 2008-02-11
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公开(公告)号: US08175361B2公开(公告)日: 2012-05-08
- 发明人: Holger Kunze , Karl Stierstorfer
- 申请人: Holger Kunze , Karl Stierstorfer
- 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: DE102007009429 20070223
- 主分类号: G06K9/00
- IPC分类号: G06K9/00
摘要:
In order to regularize a reconstruction method associated with computed tomography (CT), in at least one example embodiment, information relating to the statistics of the attenuation values of the reconstructed object is also included in the form of the logarithmic probability function of the attenuation values. This information can be obtained from the regions of those image parts which are still completely contained in a scanning field of view (SFOV), but nevertheless lie in the vicinity of the region where the object leaves the SFOV. Furthermore, the information may be used in an algebraic reconstruction method by adding a boundary condition term to the cost function to be minimized.
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