公开(公告)号：US20070057941A1

公开(公告)日：2007-03-15

申请号：US11462804

申请日：2006-08-07

申请人： Tong Fang ,  Gozde Unal ,  Fred McBagonluri ,  Alexander Zouhar ,  Hui Xie ,  Gregory Slabaugh ,  Jason Tyan

发明人： Tong Fang ,  Gozde Unal ,  Fred McBagonluri ,  Alexander Zouhar ,  Hui Xie ,  Gregory Slabaugh ,  Jason Tyan

IPC分类号： G06F19/00

CPC分类号： H04R25/652 ,  H04R25/658 ,  H04R25/70 ,  H04R2225/77

摘要： A method of designing hearing aid molds is disclosed whereby two shapes corresponding to graphical images of ear impressions are registered with each other to facilitate joint processing of the hearing aid design. In a first embodiment, a first graphical representation of a first ear impression is received and a feature, such as the aperture of the ear impression, is identified on that graphical model. A first vector is generated that represents the orientation and shape of that first feature. The three-dimensional translation and rotation of that first vector are determined that are necessary to align the first vector with a second vector representing the orientation and a shape of a feature, once again such as the aperture, of a second ear impression. In another embodiment, this alignment is then refined by minimizing the sum of the distances between points on the first and second graphical representations.

摘要翻译： 公开了一种设计助听器模具的方法，其中对应于耳朵印象的图形图像的两个形状彼此对准以便于助听器设计的联合处理。 在第一实施例中，接收第一耳朵印象的第一图形表示，并且在该图形模型上识别诸如耳朵印象的孔的特征。 生成表示该第一特征的取向和形状的第一向量。 确定该第一矢量的三维平移和旋转是必要的，以使第一矢量与代表第二耳朵印象的特征的取向和形状的第二矢量（例如孔）对齐。 在另一个实施例中，然后通过最小化第一和第二图形表示上的点之间的距离之和来改进该对准。

公开(公告)号：US20070201713A1

公开(公告)日：2007-08-30

申请号：US11462869

申请日：2006-08-07

申请人： Tong Fang ,  Alexander Zouhar ,  Gozde Unal ,  Gregory Slabaugh ,  Jason Tyan ,  Fred McBagonluri

发明人： Tong Fang ,  Alexander Zouhar ,  Gozde Unal ,  Gregory Slabaugh ,  Jason Tyan ,  Fred McBagonluri

IPC分类号： H04R25/00

CPC分类号： G06K9/6211 ,  G06K9/00214 ,  G06T7/33 ,  G06T17/00 ,  G06T19/00 ,  G06T2207/10028 ,  G06T2207/30004 ,  G06T2219/008 ,  H04R25/652 ,  H04R25/658 ,  H04R2225/77

摘要： A method identifying apertures of ear impressions is disclosed. A plurality of contour lines associated with an ear impression are determined and a difference value between a value of a characteristic, such as the diameter, of each contour line and that characteristic of an adjacent contour line is determined. The aperture is identified as being that contour line having the greatest difference value. The contour lines are determined by identifying where a plane intersects the surface of the graphical representations. In another embodiment, the contour lines are assigned a weight. A contour index is then calculated for each contour line as a function of the difference value and these weights. According to this embodiment, the aperture is identified as being a contour line that is adjacent to that contour line having the greatest contour index.

摘要翻译： 公开了一种识别耳朵印象孔径的方法。 确定与耳朵印象相关联的多个轮廓线，并且确定每个轮廓线的特征值（例如直径）与相邻轮廓线的特征值之间的差值。 孔径被识别为具有最大差值的轮廓线。 通过识别平面与图形表示的表面相交的位置来确定轮廓线。 在另一个实施例中，轮廓线被分配一个重量。 然后根据差值和这些权重对每个轮廓线计算轮廓索引。 根据该实施例，孔径被识别为与具有最大轮廓索引的轮廓线相邻的轮廓线。

公开(公告)号：US20070057942A1

公开(公告)日：2007-03-15

申请号：US11462856

申请日：2006-08-07

申请人： Gozde Unal ,  Alexander Zouhar ,  Gregory Slabaugh ,  Tong Fang ,  Jason Tyan ,  Rupen Melkisetoglu

发明人： Gozde Unal ,  Alexander Zouhar ,  Gregory Slabaugh ,  Tong Fang ,  Jason Tyan ,  Rupen Melkisetoglu

IPC分类号： G06F19/00 ,  G06T15/00

CPC分类号： H04R25/652 ,  G06K9/00214 ,  G06K9/00362 ,  G06T7/344 ,  G06T2200/04 ,  G06T2207/10028 ,  G06T2207/30004 ,  H04R2225/77

摘要： A method of designing hearing aid molds is disclosed whereby skeletons, o r simplified models, of two ear impressions are used to register the graphical representations of the molds to facilitate the joint design of hearing aid shells. The center points of at least a portion of contour lines on the surface of each ear impression are identified. Then, for each ear impression, by connecting these center points to each adjacent center point, a skeleton that represents a simplified model of an ear impression is generated. Vectors describing the distance and direction from the points of each skeleton to an anatomical feature of each ear impression are identified to obtain a correspondence between the points of each skeleton. Three-dimensional translations and rotations of a feature vector of at least one of the skeletons are determined to achieve alignment of the skeleton of one ear impression with the skeleton of another impression.

摘要翻译： 公开了一种设计助听器模具的方法，其中使用两个耳朵印模的简化模型的骨架来注册模具的图形表示以便于助听器外壳的联合设计。 识别每个耳朵印象的表面上的轮廓线的至少一部分的中心点。 然后，对于每个耳朵的印象，通过将这些中心点连接到每个相邻的中心点，生成表示耳朵印象的简化模型的骨架。 识别描述从每个骨骼的点到每个耳朵印象的解剖特征的距离和方向的向量以获得每个骨架的点之间的对应关系。 确定至少一个骨骼的特征向量的三维平移和旋转以实现一个耳朵的骨骼与另一个印象的骨骼的对准。

公开(公告)号：US20070058829A1

公开(公告)日：2007-03-15

申请号：US11462834

申请日：2006-08-07

申请人： Gozde Unal ,  Gregory Slabaugh ,  Tong Fang ,  Jason Tyan

发明人： Gozde Unal ,  Gregory Slabaugh ,  Tong Fang ,  Jason Tyan

IPC分类号： H04R25/00

CPC分类号： G06K9/00214 ,  G06T7/30 ,  G06T19/00 ,  G06T2207/30004 ,  H04R25/652 ,  H04R25/658 ,  H04R2225/77

摘要： A method for registering two three-dimensional shapes is disclosed whereby the two shapes are represented as zero level set of signed distance functions and the energy between these two functions is minimized. In a first embodiment two undetailed ear impression models are rigidly registered with each other. In another embodiment, a detailed ear impression is initially aligned with an undetailed ear impression model and, then, the detailed ear impression model is rigidly registered with the undetailed ear impression model as a function of said signed distance functions. In accordance with another embodiment, an undetailed ear impression model is non-rigidly registered with a template ear impression model as a function of said signed distance functions.

摘要翻译： 公开了一种用于记录两个三维形状的方法，其中两个形状被表示为有限距离函数的零级集合，并且这两个函数之间的能量被最小化。 在第一实施例中，两个未详细的耳朵印象模型彼此刚性地对齐。 在另一个实施例中，详细的耳朵印象最初与未详细的耳朵印象模型对准，然后，作为所述有符号距离函数的函数，详细的耳朵印象模型与未详细的耳朵印模模型刚性地注册。 根据另一个实施例，作为所述有符号距离函数的函数，未确定的耳朵印象模型与模板耳朵印模模型非刚性地对齐。

公开(公告)号：US20070153000A1

公开(公告)日：2007-07-05

申请号：US11466211

申请日：2006-08-22

申请人： Hui Xie ,  Jin Zhou ,  Gregory Slabaugh ,  Gozde Unal ,  Tong Fang

发明人： Hui Xie ,  Jin Zhou ,  Gregory Slabaugh ,  Gozde Unal ,  Tong Fang

IPC分类号： G06T17/20 ,  G06T15/30

CPC分类号： G06T17/20

摘要： A method and apparatus for rounding a sharp edge of a model of an object is disclosed whereby a ball is propagated in a desired direction along the edge to be smoothed. The position of the ball at each point in its propagation is noted and, as a result, a virtual tunnel through which the ball passed may be constructed. Points on the sides of the surface of the object in proximity to the sharp edge are then projected onto the virtual tunnel by connecting with a line each point in proximity to the sharp edge to the center of the tunnel. New projected points are created at each position on the surface of the tunnel where the lines intersect that surface. The original points along the sharp edge are then hidden or deleted and the points along the virtual tunnel are connected via well-known surface reconstruction methods. In this way, a sharp edge of a triangle mesh model are advantageously smoothed.

摘要翻译： 公开了一种用于使物体的模型的锋利边缘倒圆的方法和装置，其中球沿着待平滑的边缘在期望的方向上传播。 注意到球在其传播中的每个点处的位置，结果可以构造球通过的虚拟隧道。 接近尖锐边缘的物体表面侧面的点然后通过与尖锐边缘附近的每条线连接到隧道中心而投射到虚拟隧道上。 在隧道表面的每个位置上创建新的投影点，其中线与该表面相交。 然后沿尖锐边缘的原始点被隐藏或删除，沿着虚拟隧道的点通过公知的表面重建方法连接。 以这种方式，有利地平滑了三角形网格模型的尖锐边缘。

公开(公告)号：US20060056701A1

公开(公告)日：2006-03-16

申请号：US11044237

申请日：2005-01-27

申请人： Gozde Unal ,  Gregory Slabaugh ,  Jason Tyan

发明人： Gozde Unal ,  Gregory Slabaugh ,  Jason Tyan

IPC分类号： G06K9/48 ,  G06K9/32 ,  A61B5/00

CPC分类号： G06K9/6206 ,  G06T7/12 ,  G06T7/149 ,  G06T7/344 ,  G06T2207/10072 ,  G06T2207/20104 ,  G06T2207/20116 ,  G06T2207/20161 ,  G06T2207/30004

摘要： A method for joint segmentation and registration of a contour for detecting an object in image data includes initializing a segmentation, initializing a registration of the segmentation, updating the segmentation and the registration, outputting an updated segmentation and an updated registration, wherein the updated segmentation and updated registration delineates the object in the image data.

摘要翻译： 用于联合分割和注册用于检测图像数据中的对象的轮廓的方法包括初始化分割，初始化分割的注册，更新分割和注册，输出更新的分割和更新的注册，其中更新的分割和 更新的注册表示图像数据中的对象。

公开(公告)号：US20050195185A1

公开(公告)日：2005-09-08

申请号：US11067151

申请日：2005-02-24

申请人： Gregory Slabaugh ,  Gozde Unal ,  Jason Tyan

发明人： Gregory Slabaugh ,  Gozde Unal ,  Jason Tyan

IPC分类号： G06T7/40 ,  G06T15/00 ,  G06T17/20

CPC分类号： G06K9/6207 ,  G06K9/00214

摘要： A method for three dimensional image segmentation of a volume of interest includes providing a three dimensional image of the volume of interest, providing an initial polyhedron having a plurality of mesh vertices within the three dimension image and determining an image-based speed at each vertex of the polyhedron using an ordinary differential equation (ODE) that describes the vertex motion of the polyhedron. The method further includes determining a regularization term at each vertex of the polyhedron, updating the plurality of mesh vertices of the polyhedron, integrating the image-based speed of each vertex over a face of the polyhedron, and determining an output polyhedron approximating a shape of the volume of interest.

摘要翻译： 用于感兴趣体积的三维图像分割的方法包括提供感兴趣体积的三维图像，提供在三维图像内具有多个网格顶点的初始多面体，并且确定每个顶点处的基于图像的速度 多面体使用描述多面体顶点运动的常微分方程（ODE）。 该方法还包括确定多面体的每个顶点处的正则化项，更新多面体的多个网格顶点，将多个顶点的每个顶点的基于图像的速度整合在多面体的面上，以及确定接近多面体的形状的输出多面体 感兴趣的数量。

公开(公告)号：US20080075345A1

公开(公告)日：2008-03-27

申请号：US11857801

申请日：2007-09-19

申请人： Gozde Unal ,  Atilla Kiraly ,  Gregory Slabaugh ,  Carol Novak ,  Tong Fang

发明人： Gozde Unal ,  Atilla Kiraly ,  Gregory Slabaugh ,  Carol Novak ,  Tong Fang

IPC分类号： G06K9/62

CPC分类号： G06T7/149 ,  G06T7/12 ,  G06T2207/10081 ,  G06T2207/20116 ,  G06T2207/30096

摘要： A method and system for lymph node segmentation in computed tomography (CT) images is disclosed. A location of a lymph node in a CT image slice is received. Intensity constraints are determined based on a histogram analysis of the CT image slice, and a spatial analysis of the intensity constrained CT image slice is performed using edge detection. An initial contour is estimated based on the lymph node location and the spatial analysis. The lymph node is then segmented by propagating the initial contour using an evolving elliptical model to define the lymph node boundaries.

摘要翻译： 公开了一种计算机断层扫描（CT）图像中淋巴结分割的方法和系统。 接收CT图像切片中淋巴结的位置。 强度约束基于CT图像切片的直方图分析确定，并且使用边缘检测进行强度约束CT图像切片的空间分析。 基于淋巴结位置和空间分析估计初始轮廓。 然后通过使用演进的椭圆模型传播初始轮廓来分割淋巴结以限定淋巴结边界。

公开(公告)号：US20070167710A1

公开(公告)日：2007-07-19

申请号：US11555806

申请日：2006-11-02

申请人： Gozde Unal ,  Yan Yang ,  Gregory Slabaugh ,  Tong Fang

发明人： Gozde Unal ,  Yan Yang ,  Gregory Slabaugh ,  Tong Fang

IPC分类号： A61B5/05

CPC分类号： A61B5/6852 ,  A61B5/0066 ,  A61B5/0086

摘要： A method and apparatus for automatically detecting stent struts in an image is disclosed whereby the inner boundary, or lumen, of an artery wall is first detected automatically and intensity profiles along rays in the image are determined. In one embodiment, detection of the lumen boundary may be accomplished, for example, by evolving a geometric shape, such as an ellipse, using a region-based algorithm technique, a geodesic boundary-based algorithm technique or a combination of the two techniques. Once the lumen boundary has been determined, in another embodiment, the stent struts are detected using a ray shooting algorithm whereby a ray is projected outward in the OCT image starting from the position in the image of the OCT sensor. The intensities of the pixels along the ray are used to detect the presence of a stent strut in the image.

摘要翻译： 公开了一种用于自动检测图像中的支架支柱的方法和装置，其中首先自动检测动脉壁的内边界或内腔，并且确定与图像中的光线的强度分布。 在一个实施例中，可以例如通过使用基于区域的算法技术，基于测地边界的算法技术或两种技术的组合来演示诸如椭圆的几何形状来实现流明边界的检测。 一旦已经确定了管腔边界，在另一个实施例中，使用射线射击算法来检测支架支柱，由此射线从OCT传感器的图像中的位置开始向OCT中投射。 使用沿着光线的像素的强度来检测图像中支架支柱的存在。

公开(公告)号：US20070050073A1

公开(公告)日：2007-03-01

申请号：US11466149

申请日：2006-08-22

申请人： Gozde Unal ,  Gregory Slabaugh ,  Tong Fang

发明人： Gozde Unal ,  Gregory Slabaugh ,  Tong Fang

IPC分类号： G06F19/00

CPC分类号： H04R25/658 ,  G06K9/469 ,  H04R25/652 ,  H04R2225/77

摘要： An improved method of designing hearing aid molds is disclosed whereby regions of an ear impression model are identified as a function of a geodesic distance measure. According to a first embodiment, a canal point of an ear impression model is identified as that point having a maximum normalized geodesic distance as compared to all other points on the surface of the ear impression model. According to a second embodiment, a helix point of the ear impression model is identified as that point having a maximum normalized geodesic distance as compared to all points except those points in the canal region of said ear impression model. Finally, in accordance with another embodiment, a geodesic distance between a canal point and a helix point of an ear impression model is identified and a percentage threshold, illustratively 65%, is applied to that geodesic distance to identify a crus region.

摘要翻译： 公开了一种改进的助听器模具的设计方法，其中耳朵印模模型的区域被识别为测地距离测量的函数。 根据第一实施例，与耳朵印象模型的表面上的所有其他点相比，耳朵印模模型的运河点被识别为具有最大归一化测地距离的点。 根据第二实施例，与除了所述耳朵印象模型的运河区域中的那些点之外的所有点相比，耳朵印模模型的螺旋点被识别为具有最大归一化测地距离的点。 最后，根据另一个实施例，识别耳朵印模模型的运河点和螺旋点之间的测地距离，并且示例性地将65％的百分比阈值应用于该测地距离以识别小腿区域。