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41. 发明申请

US20090087070A1 Method and system for bone suppression based on a single x-ray image 失效
标题翻译：基于单个X射线图像的骨抑制方法和系统
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）。

42. 发明授权

US06975756B1 Image-based photo hulls 失效
标题翻译：基于图像的照片船体
公开(公告)号：US06975756B1
公开(公告)日：2005-12-13
申请号：US10095661
申请日：2002-03-12
申请人： Gregory G. Slabaugh , Ronald W. Schafer , Mathieu C. Hans
发明人： Gregory G. Slabaugh , Ronald W. Schafer , Mathieu C. Hans
IPC分类号： G06K9/00
CPC分类号： G06T15/205
摘要： The invention features an improved, photo hull based method of generating a three-dimensional representation of a visual scene based upon a set of multi-view reference images. In one aspect, a visual hull containing the visual scene is computed. Visibility of points on the computed visual hull with respect to each reference image is computed. Photo-consistency of points on the computed visual hull along rays back-projected from a desired view is computed based upon reference images having visibility of the points. A photo hull containing the visual scene is generated by stepping along each back-projected ray. The photo-consistent points visible in the desired view are colored using color information contained in reference images having visibility of the photo-consistent points.
摘要翻译：本发明的特征在于基于一组多视图参考图像生成视觉场景的三维表示的改进的基于照片的船体的方法。在一个方面，计算包含视觉场景的视觉外壳。计算相对于每个参考图像的计算的视觉船体上的点的可见性。基于具有点的可视性的参考图像来计算沿着期望视点反投影的光线的计算的视觉船体上的点的一致性。包含视觉场景的照片船体通过沿着每个后投射的光线进行生成。在所需视图中可见的光一致点是使用包含在具有光一致点的可视性的参考图像中的颜色信息进行着色的。

43. 发明授权

US08135453B2 Method and apparatus for ear canal surface modeling using optical coherence tomography imaging 有权
标题翻译：使用光学相干断层扫描成像进行耳道表面建模的方法和装置
公开(公告)号：US08135453B2
公开(公告)日：2012-03-13
申请号：US11558956
申请日：2006-11-13
申请人： Gregory G. Slabaugh , Jason Tyan
发明人： Gregory G. Slabaugh , Jason Tyan
IPC分类号： A61B6/00 , A61B8/00 , A61B8/14
CPC分类号： H04R25/658 , A61B5/0066 , A61B5/1076 , A61B5/1077 , A61B5/6817 , H04R25/652
摘要： A method and apparatus for generating a three dimensional representation of an ear canal are disclosed whereby an ear canal of a patient is imaged using optical coherence tomography (OCT). In a first embodiment, cross-section images of an ear canal are taken by, for example, rotating an OCT imaging sensor about a predetermined axis at each of a plurality of positions. In accordance with another embodiment, a contour line is then identified in each of the cross section images and a flow algorithm is used to identify the boundary of the ear canal cross section. Once the boundaries of each cross section have been identified, all of the cross section images are combined to generate a three dimensional image of the ear canal.
摘要翻译：公开了一种用于产生耳道的三维表示的方法和装置，其中使用光学相干断层摄影（OCT）对患者的耳道进行成像。在第一实施例中，耳道的横截面图像是通过例如在多个位置的每一个处围绕预定轴线旋转OCT成像传感器而获得的。根据另一实施例，然后在每个截面图像中识别轮廓线，并且使用流动算法来识别耳道横截面的边界。一旦已经识别出每个横截面的边界，则将所有横截面图像组合以产生耳道的三维图像。

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