公开(公告)号：US20200090379A1

公开(公告)日：2020-03-19

申请号：US16471842

申请日：2017-12-20

申请人： KONINKLIJKE PHILIPS N.V. ,  ION BEAM APPLICATIONS S.A.

发明人： Dirk SCHÄFER ,  Peter George VAN DE HAAR ,  Sebastien BROUSMICHE

IPC分类号： G06T11/00 ,  A61B6/03 ,  A61B6/00 ,  G06T7/00 ,  G06T3/40

摘要： The invention relates to off-center detector 3D X-ray or proton radiography reconstruction. Redundancy weighting with a steep weighting function around the iso-axis typically leads to artifacts in the reconstruction, for example, if inconsistencies between two nominal redundant projections occur, e.g. due to slightly incorrect detector calibration or scatter correction, etc. With the present invention, an approach is presented for overcoming or mitigating these problems.