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1.
公开(公告)号:US20090087070A1
公开(公告)日:2009-04-02
申请号:US12283441
申请日:2008-09-12
申请人: Gregory G. Slabaugh , Tong Fang , Kooksang Moon , Yunqiang Chen
发明人: Gregory G. Slabaugh , Tong Fang , Kooksang Moon , Yunqiang Chen
IPC分类号: G06K9/00
CPC分类号: G06T5/002 , G06T5/005 , G06T5/20 , G06T2207/10116 , G06T2207/20064 , G06T2207/20076 , G06T2207/20081 , G06T2207/30008 , G06T2207/30064
摘要: A method and system for suppressing bone structures based on a single x-ray image is disclosed. The bone structure suppressing method predicts a soft-tissue image without bone structures from an input x-ray image. A set of features is extracted for each pixel of the input x-ray image. A soft-tissue image is then generated from the input x-ray image using a trained regression function to determine an intensity value for the soft-tissue image corresponding to each pixel of the input x-ray image based on the set of features extracted for each pixel of the input x-ray image. The extracted features can be wavelet features and the regression function can be trained using Bayesian Committee Machine (BCM) to approximate Gaussian process regression (GPR).
摘要翻译: 公开了一种基于单个X射线图像来抑制骨骼结构的方法和系统。 骨结构抑制方法从输入的X射线图像预测没有骨结构的软组织图像。 为输入x射线图像的每个像素提取一组特征。 然后使用训练回归函数从输入的X射线图像生成软组织图像,以基于为 输入x射线图像的每个像素。 提取的特征可以是小波特征,并且可以使用贝叶斯委员会机器(BCM)来训练回归函数来近似高斯过程回归(GPR)。
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2.
公开(公告)号:US08094904B2
公开(公告)日:2012-01-10
申请号:US12283441
申请日:2008-09-12
申请人: Gregory G. Slabaugh , Tong Fang , Kooksang Moon , Yunqiang Chen
发明人: Gregory G. Slabaugh , Tong Fang , Kooksang Moon , Yunqiang Chen
IPC分类号: G06K9/00
CPC分类号: G06T5/002 , G06T5/005 , G06T5/20 , G06T2207/10116 , G06T2207/20064 , G06T2207/20076 , G06T2207/20081 , G06T2207/30008 , G06T2207/30064
摘要: A method and system for suppressing bone structures based on a single x-ray image is disclosed. The bone structure suppressing method predicts a soft-tissue image without bone structures from an input x-ray image. A set of features is extracted for each pixel of the input x-ray image. A soft-tissue image is then generated from the input x-ray image using a trained regression function to determine an intensity value for the soft-tissue image corresponding to each pixel of the input x-ray image based on the set of features extracted for each pixel of the input x-ray image. The extracted features can be wavelet features and the regression function can be trained using Bayesian Committee Machine (BCM) to approximate Gaussian process regression (GPR).
摘要翻译: 公开了一种基于单个X射线图像来抑制骨骼结构的方法和系统。 骨结构抑制方法从输入的X射线图像预测没有骨结构的软组织图像。 为输入x射线图像的每个像素提取一组特征。 然后使用训练回归函数从输入的X射线图像生成软组织图像,以基于为 输入x射线图像的每个像素。 提取的特征可以是小波特征,并且可以使用贝叶斯委员会机器(BCM)来训练回归函数来近似高斯过程回归(GPR)。
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