公开(公告)号：EP1699014A3

公开(公告)日：2009-08-19

申请号：EP05018698.0

申请日：2005-08-29

申请人： KABUSHIKI KAISHA TOSHIBA ,  Toshiba Medical Systems Corporation

发明人： Taguchi, Katsuyuki Intellectual Property Division

IPC分类号： G06T5/00 ,  G06T11/00 ,  A61B6/00

CPC分类号： G06T11/005 ,  A61B6/027 ,  G06T2211/412

摘要： A method for reconstructing an image, including obtaining (1401) projection data using an X-ray detector and one of a cone-beam X-ray generator and a fan-beam X-ray generator, filtering (1402) the obtained projection data using a ramp-based filtering function to generate filtered projection data, weighting (1402) the filtered projection data to compensate for redundant projection data, and reconstructing (1403) the image by back-projecting the weighted projection data along a radial path.

公开(公告)号：EP1699014A2

公开(公告)日：2006-09-06

申请号：EP05018698.0

申请日：2005-08-29

申请人： KABUSHIKI KAISHA TOSHIBA ,  Toshiba Medical Systems Corporation

发明人： Taguchi, Katsuyuki Intellectual Property Division

IPC分类号： G06T5/00 ,  G06T11/00 ,  A61B6/00

CPC分类号： G06T11/005 ,  A61B6/027 ,  G06T2211/412

摘要： A method for reconstructing an image, including obtaining (1401) projection data using an X-ray detector and one of a cone-beam X-ray generator and a fan-beam X-ray generator, filtering (1402) the obtained projection data using a ramp-based filtering function to generate filtered projection data, weighting (1402) the filtered projection data to compensate for redundant projection data, and reconstructing (1403) the image by back-projecting the weighted projection data along a radial path.

摘要翻译： 一种用于重建图像的方法，包括使用X射线检测器和锥形束X射线发生器和扇形束X射线发生器之一获得（1401）投影数据，使用 基于斜坡的滤波功能以产生滤波的投影数据，对经滤波的投影数据加权（1402）以补偿冗余投影数据，以及通过沿径向路径反投影加权投影数据来重建（1403）图像。