发明名称 |
Extension of the field of view of a computed tomography system in the presence of interfering objects |
摘要 |
A method and system for generating a field of view extension of a CT scan and minimizing the effect of interfering objects is described. The system is configured and the method carries out the steps of generating a full sinogram based upon CT scan data of a scanned object and any interfering objects within the scanning field; determining the location of any interfering objects within the CT data based on physical and geometrical properties of the interfering objects; generating an ideal sinogram of any interfering objects based on their location and physical properties; subtracting the ideal sinogram from the full sinogram; extending a sinogram free of any interfering objects; and adding the ideal sinogram of interfering objects to the extended sinogram of the scanned object. Speeding up the computation of the extended sinogram by creating a look-up table of the tunable parameter of the extension function. |
申请公布号 |
US8433119(B2) |
申请公布日期 |
2013.04.30 |
申请号 |
US20090605207 |
申请日期 |
2009.10.23 |
申请人 |
DEYKOON ANTON M.;ANALOGIC CORPORATION |
发明人 |
DEYKOON ANTON M. |
分类号 |
A61B6/03 |
主分类号 |
A61B6/03 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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