发明名称 Method and apparatus for reducing cone beam artifacts using spatially varying weighting functions
摘要 A method for combining images acquired using helical half-scan imaging comprises identifying an image plane within an overlap region comprising data from first and second view streams representative of first and second cycles of acquired image data. The image plane comprises the same anatomical structure. First and second weighting functions are calculated for first and second images based on first and second tube positions of an x-ray tube. The first and second images correspond to the image plane and are from the first and second view streams, respectively. The first and second tube positions also correspond to the image plane. A weighted image is then formed based on the first and second weighting functions and the first and second images.
申请公布号 US2007140535(A1) 申请公布日期 2007.06.21
申请号 US20050305929 申请日期 2005.12.19
申请人 GENERAL ELECTRIC COMPANY 发明人 LI JIANYING;HSIEH JIANG;VASS MELISSA L.;TANG XIANGYANG;LONDT JOHN H.;OKERLUND DARIN R.
分类号 G06K9/00 主分类号 G06K9/00
代理机构 代理人
主权项
地址