发明名称 |
Method and arrangement for multiresolutive reconstruction for medical X-ray imaging |
摘要 |
A medical X-ray device arrangement for producing three-dimensional information of an object in a medical X-ray imaging, the medical X-ray device arrangement comprising an X-ray source for X-radiating the object from at least two different directions and a detector for detecting the X-radiation to form projection data of the object. The medical X-ray device arrangement comprises means for modelling X-ray attenuation coefficient of said object using a multiresolution representation, eliminating part of the coefficients in said multiresolution representation to form reduced multiresolution representation, and utilizing said projection data in a regularized reconstruction method based on minimizing the penalty F f = €– A �¢ f ˆ’ m €– 2 2 + ± �¢ €– f €– B + ² �¢ g f
over the coefficients in the said reduced multiresolution representation to produce three-dimensional information of the object.
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申请公布号 |
EP1677256(A2) |
申请公布日期 |
2006.07.05 |
申请号 |
EP20050112611 |
申请日期 |
2005.12.21 |
申请人 |
GE HEALTHCARE FINLAND OY |
发明人 |
KALKE, MARTTI;SILTANEN, SAMULI;VAENSKAE, SIMOPEKKA;LASSAS, MATTI;RANTALA, MAARIA |
分类号 |
G06T11/00 |
主分类号 |
G06T11/00 |
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地址 |
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