发明授权
- 专利标题： Accurate determination of the shape and localization of metallic object(s) in X-ray CT imaging
- 专利标题（中）： 准确测定X射线CT成像中金属物体的形状和定位
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申请号： US12924327申请日： 2010-09-23
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公开(公告)号： US08498465B2公开(公告)日： 2013-07-30
- 发明人: Lei Xing , Jing Wang
- 申请人： Lei Xing , Jing Wang
- 申请人地址： US CA Palo Alto
- 专利权人： The Board of Trustees of the Leland Stanford Junior University
- 当前专利权人： The Board of Trustees of the Leland Stanford Junior University
- 当前专利权人地址： US CA Palo Alto
- 代理机构： Lumen Patent Firm
- 主分类号： G06K9/00
- IPC分类号： G06K9/00
摘要：
A binary image reconstruction method is provided to identify metal objects in a computer tomography (CT) image. The method includes providing a suitably programmed computer, providing a CT image, where the CT image includes intensity data, and the suitably programmed computer is used to determine a first range of attenuation coefficient values and a second range of attenuation coefficient values in the intensity data, where when a difference between the first range of attenuation coefficient values and the second range of attenuation coefficient values is less than a pre-determined gradient threshold value, a boundary of a metal object in the CT image is determined.
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