发明名称 |
Spot-size effect reduction |
摘要 |
A radiographic imaging device includes an X-ray source having a finite focal spot characterized by a determined intensity distribution. The X-ray source emits a beam of X-ray radiation toward an object. A detector assembly receives at least part of the X-ray radiation after it passes through the object. The detector assembly produces a signal in response to the received radiation. An image processor constructs an image from the signal generated by the detector assembly using the determined intensity distribution of the X-ray source. By inverse filtering the aggregated detector image from the detector assembly, the effects of the finite focal spot size of the X-ray source are mitigated, improving the quality of the resulting image.
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申请公布号 |
US7418078(B2) |
申请公布日期 |
2008.08.26 |
申请号 |
US20050123749 |
申请日期 |
2005.05.06 |
申请人 |
SIEMENS MEDICAL SOLUTIONS USA, INC. |
发明人 |
BLANZ WOLF-EKKEHARD;BANI-HASHEMI ALI |
分类号 |
G01N23/04 |
主分类号 |
G01N23/04 |
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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