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1. 发明授权

US08811709B2 System and method for multi-material correction of image data 有权
标题翻译：图像数据多物质校正的系统和方法
公开(公告)号：US08811709B2
公开(公告)日：2014-08-19
申请号：US13677010
申请日：2012-11-14
申请人： General Electric Company
发明人： Xiaoye Wu , Jiang Hsieh , Paavana Sainath , Dan Xu , Yannan Jim , Girijesh Kumar Yadava , Adam Israel Cohen , Hewei Gao
IPC分类号： G06K9/00 , A61B6/00
CPC分类号： A61B6/03 , G06T7/0012 , G06T11/008 , G06T2211/408
摘要： A method is provided. The method includes acquiring projection data of an object from a plurality of pixels, reconstructing the acquired projection data from the plurality of pixels into a reconstructed image, performing material characterization and decomposition of an image volume of the reconstructed image to reduce a number of materials analyzed in the image volume to two basis materials. The method also includes generating a re-mapped image volume for at least one basis material of the two basis materials, and performing forward projection on at least the re-mapped image volume for the at least one basis material to produce a material-based projection. The method further includes generating multi-material corrected projections based on the material-based projection and a total projection attenuated by the object, which represents both of the two basis materials, wherein the multi-material corrected projections include linearized projections.
摘要翻译：提供了一种方法。该方法包括从多个像素获取对象的投影数据，将所获取的投影数据从多个像素重建成重建图像，对重建图像执行材料表征和分解，以减少分析的材料数量在图像体积为两个基础材料。所述方法还包括为所述两种基础材料的至少一种基础材料生成重新映射的图像体积，以及针对所述至少一种基础材料至少对所述重新映射的图像体积执行向前投影以产生基于材料的投影。该方法还包括基于基于材料的投影和由对象衰减的总投影来生成多材料校正投影，其表示两种基础材料，其中多材料校正投影包括线性化投影。

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