发明名称 |
Method for the compensation of image disturbances in the course of radiation image recordings and radiation image recording apparatus |
摘要 |
A method is for the compensation of image disturbances in the course of a radiation image recording caused by a defocusing of an antiscatter grid, arranged in the beam path between a beam source and a digital radiation image receiver and focused with respect to a specific distance from the focus of the beam source. Such image disturbances are caused by a defocusing-dictated attenuation of the primary radiation incident on the radiation image receiver. A solid-state image detector includes radiation-sensitive pixels arranged in matrix form and a device for pixelwise amplification of the radiation-dependent signals. In the method, at least some of the signals supplied in pixelwise fashion are amplified by an amplifying device in a manner dependent on the actual distance of the antiscatter grid from the focus.
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申请公布号 |
US2004223590(A1) |
申请公布日期 |
2004.11.11 |
申请号 |
US20040803998 |
申请日期 |
2004.03.19 |
申请人 |
GEIGER BERNHARD;JOITE-BARFUSS SIGRID;MOLZ CLAUDIUS;ROTH-GANTER GUDRUN |
发明人 |
GEIGER BERNHARD;JOITE-BARFUSS SIGRID;MOLZ CLAUDIUS;ROTH-GANTER GUDRUN |
分类号 |
G01T1/00;A61B6/00;A61B6/06;G01N23/04;G01T1/164;G01T1/17;G01T1/24;G01T1/29;(IPC1-7):G21K1/00 |
主分类号 |
G01T1/00 |
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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