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 <?in-line-formulae description="In-line Formulae" end="lead"?>F(f)=∥Af-m∥2/2+alpha∥f∥<SUB>B</SUB>+betag(f)<?in-line-formulae description="In-line Formulae" end="tail"?> 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 |
US2006146983(A1) |
申请公布日期 |
2006.07.06 |
申请号 |
US20040027482 |
申请日期 |
2004.12.30 |
申请人 |
KALKE MARTTI;SILTANEN SAMULI;VANSKA SIMOPEKKA;LASSAS MATTI;RANTALA MAARIA |
发明人 |
KALKE MARTTI;SILTANEN SAMULI;VANSKA SIMOPEKKA;LASSAS MATTI;RANTALA MAARIA |
分类号 |
H05G1/60;A61B6/00;G01N23/00;G21K1/12 |
主分类号 |
H05G1/60 |
代理机构 |
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代理人 |
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地址 |
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