发明名称 |
ITERATIVE EXTRA-FOCAL RADIATION CORRECTION IN THE RECONSTRUCTION OF CT IMAGES |
摘要 |
A method is disclosed for reconstruction of image data of an object under examination from measurement data, with the measurement data having been recorded during a rotating movement of a radiation source of a computed tomography system around the object under examination. The radiation source emits focal and extra-focal radiation. In at least one embodiment of the method, the image data is determined from the measurement data by use of an iterative algorithm. A variable is used in the iterative algorithm which contains a distribution of the extra-focal radiation.
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申请公布号 |
US2010246918(A1) |
申请公布日期 |
2010.09.30 |
申请号 |
US20100730664 |
申请日期 |
2010.03.24 |
申请人 |
KAPPLER STEFFEN;RUEHRNSCHOPF ERNST-PETER;SCHOLZ BERNHARD;STIERSTORFER KARL |
发明人 |
KAPPLER STEFFEN;RUEHRNSCHOPF ERNST-PETER;SCHOLZ BERNHARD;STIERSTORFER KARL |
分类号 |
G06K9/00;H05G1/60 |
主分类号 |
G06K9/00 |
代理机构 |
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主权项 |
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地址 |
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