The University of Sydney;Western Sydney Local Health District;Katholieke Universiteit Leuven KU Leuven R&D
发明人:
Roger Fulton,Johan Nuyts,Tao Sun,Jung-Ha Kim
申请号：
US15608666
公开号：
US20170340287A1
申请日:
2017.05.30
申请国别(地区):
US
年份:
2017
代理人:
摘要：
A method for the reduction of motion artifacts in a helical CT reconstruction, the method including the steps of: (a) reconstructing from the raw CT data an initial estimate of the 3D attenuation distribution of the object of interest； (b) estimating a pose parameter set of the object for each projection angle； (c) undertaking a motion corrected reconstruction from the measured projections, accounting for the pose changes estimated in (b)； (d) iterating steps (b)-(c) until some convergence criterion is met； and (e) making a final reconstruction of diagnostic quality using the pose estimates obtained in the previous steps.
