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公开(公告)号:US20140153802A1
公开(公告)日:2014-06-05
申请号:US14068276
申请日:2013-10-31
申请人: Sofiene Jenzri , Parmeshwar Khurd
发明人: Sofiene Jenzri , Parmeshwar Khurd
IPC分类号: G06T7/00
CPC分类号: G06T7/0016 , G06T7/33 , G06T2207/10072 , G06T2207/30048 , G06T2207/30061 , G06T2207/30101
摘要: Deformable, anatomical trees represented by scan data from different times are matched. Coherent point drift (CPD) solved using expectation maximization is enhanced with tangent or other curve information. By including point-curve information, another characteristic than GMM-based probabilities are included in the cost function for matching. The angle information provided by the tangent, normal, or other point-curve measure may more likely match points in one set representing a tree to points in another set representing the tree.
摘要翻译: 由不同时间的扫描数据表示的变形,解剖树匹配。 使用预期最大化解决的相干点漂移(CPD)通过切线或其他曲线信息增强。 通过包含点曲线信息,在用于匹配的成本函数中包括除基于GMM的概率之外的另一个特征。 由切线,正常或其他点曲线测量提供的角度信息可能更有可能将表示树的一组中的点与表示树的另一组中的点匹配。
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公开(公告)号:US20120049053A1
公开(公告)日:2012-03-01
申请号:US13319097
申请日:2010-04-14
申请人: Patrick Olivier , Parmeshwar Khurd
发明人: Patrick Olivier , Parmeshwar Khurd
CPC分类号: G06T11/005 , G06T1/00
摘要: A continuous time-of-flight scatter simulation method is provided, with a related method of correcting PET imaging data to compensate for photon scatter. Scatter contributions from each imaging pixel in a field of view may be calculated without binning data.
摘要翻译: 提供了一种连续的飞行时间散射模拟方法,具有校正PET成像数据以补偿光子散射的相关方法。 可以计算在视场中的每个成像像素的散射贡献而不对数据进行分组。
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公开(公告)号:US08809791B2
公开(公告)日:2014-08-19
申请号:US13319097
申请日:2010-04-14
申请人: Patrick Olivier , Parmeshwar Khurd
发明人: Patrick Olivier , Parmeshwar Khurd
CPC分类号: G06T11/005 , G06T1/00
摘要: A continuous time-of-flight scatter simulation method is provided, with a related method of correcting PET imaging data to compensate for photon scatter. Scatter contributions from each imaging pixel in a field of view may be calculated without binning data.
摘要翻译: 提供了一种连续的飞行时间散射模拟方法,具有校正PET成像数据以补偿光子散射的相关方法。 可以计算在视场中的每个成像像素的散射贡献而不对数据进行分组。
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