发明名称 Method for correcting calibration values in a calibration table of a computed tomography apparatus
摘要 In a method for correcting a calibration table T(n,k) of a CT apparatus that contains calibration values, the CT apparatus having a detector system with N>=2 rows of detector elements following one another in the z-direction that include a first active row of detector elements in the z-direction and a last active row of detector elements in the z-direction, for correcting the calibration values of the aforementioned first and last active rows of detector elements, a reference vector R(k) is produced, the error is determined with respect to the first and last active rows of detector elements, and the error F(n,k) of the first and last active rows of detector elements is subtracted from the corresponding calibration values of the calibration table T(n,k) for determining corrected calibration values Tcor(n,k) with respect to the first and last active rows of detector elements.
申请公布号 US2002165686(A1) 申请公布日期 2002.11.07
申请号 US20020090655 申请日期 2002.03.05
申请人 SIEMENS AKTIENGESELLSCHAFT 发明人 KROPFELD HELMUT;SCHWARZ KARL
分类号 G01T7/00;A61B6/00;A61B6/03;A61B6/06;G01N23/04;G01T1/29;(IPC1-7):G01D18/00;G01M19/00;G06F19/00;G01D21/00;G01P21/00;G01R35/00;G01C19/00;G01C25/00;G01F25/00 主分类号 G01T7/00
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