发明名称 |
Non-uniform view weighting tomosynthesis method and apparatus |
摘要 |
A technique is provided for non-uniform weighting in back-projection calculations in tomosythesis. The non-uniform weighting may include weighting based on a count map of the number of times pixels of individual slices are traversed by radiation in different projections. Weighting may also include non-uniform functions for contributions of features at different slice level to the sensed X-ray attenuation system response inconsistencies are accounted for by further weighting based upon projection maps which may be created in separate system calibration or configuration routines.
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申请公布号 |
US6980624(B2) |
申请公布日期 |
2005.12.27 |
申请号 |
US20030723034 |
申请日期 |
2003.11.26 |
申请人 |
GE MEDICAL SYSTEMS GLOBAL TECHNOLOGY COMPANY, LLC |
发明人 |
LI BAOJUN;CLAUS BERNHARD ERICH HERMANN;AVINASH GOPAL B.;METZ STEPHEN W.;HSIEH JIANG |
分类号 |
A61B6/02;A61B6/03;G06T11/00;(IPC1-7):A61B6/03 |
主分类号 |
A61B6/02 |
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