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51. 发明申请

US20070265813A1 Devices, Systems, and Methods for Processing Images 有权
标题翻译：设备，系统和处理图像的方法
公开(公告)号：US20070265813A1
公开(公告)日：2007-11-15
申请号：US11538921
申请日：2006-10-05
申请人： Gozde Unal , Gregory Slabaugh , Tong Fang
发明人： Gozde Unal , Gregory Slabaugh , Tong Fang
IPC分类号： G06F17/10
CPC分类号： G06T7/0012 , G06T7/12 , G06T7/149 , G06T2207/10088 , G06T2207/20101 , G06T2207/20116 , G06T2207/30004
摘要： Certain exemplary embodiments can comprise a method, which can comprise, automatically determining a target object from an image via an application of an iterative minimization algorithm to an energy function. Each iteration of the iterative minimization algorithm can comprise a comparison of a model with an estimated contour of the target object.
摘要翻译：某些示例性实施例可以包括一种方法，其可以包括通过将迭代最小化算法应用于能量函数从图像自动地确定目标对象。迭代最小化算法的每次迭代可以包括模型与目标对象的估计轮廓的比较。

52. 发明申请

US20070217566A1 System and Method For Image Reconstruction 有权
标题翻译：图像重构系统与方法
公开(公告)号：US20070217566A1
公开(公告)日：2007-09-20
申请号：US11682013
申请日：2007-03-05
申请人： Yunqiang Chen , Lin Cheng , Tong Fang , Jason Tyan
发明人： Yunqiang Chen , Lin Cheng , Tong Fang , Jason Tyan
IPC分类号： H05G1/60 , A61B6/00 , G01N23/00 , G21K1/12
CPC分类号： G01N23/046 , G01N2223/419 , G06T11/006 , G06T2211/421 , G06T2211/424
摘要： A system and method for image reconstruction is disclosed. The method divides iterative image reconstruction into two stages, in the image and Radon space, respectively. In the first stage, filtered back projection and adaptive filtering in the image space are combined to generate a refined reconstructed image of a sinogram residue. This reconstructed image represents an update direction in the image space. In the second stage, the update direction is transformed to the Radon space, and a step size is determined to minimize a difference between the sinogram residue and a Radon transform of the refined reconstructed image of the sinogram residue in the Radon space. These stages are repeated iteratively until the solution converges.
摘要翻译：公开了一种用于图像重建的系统和方法。该方法分别在图像和氡空间中将迭代图像重建分为两个阶段。在第一阶段，滤波反投影和图像空间中的自适应滤波被组合以产生正弦图残差的精细重建图像。该重建图像表示图像空间中的更新方向。在第二阶段中，将更新方向转换为Radon空间，并且确定步长以最小化Radon空间中的正弦图残差的精细重建图像的正弦图残差和Radon变换之间的差异。迭代重复这些阶段，直到解得到收敛。

53. 发明申请

US20070189580A1 Systems and Methods For Guidewire Tracking Using Phase Congruency 有权
标题翻译：使用相位一致性进行导丝跟踪的系统和方法
公开(公告)号：US20070189580A1
公开(公告)日：2007-08-16
申请号：US11566363
申请日：2006-12-04
申请人： Gregory Slabaugh , Koon Kong , Gozde Unal , Tong Fang
发明人： Gregory Slabaugh , Koon Kong , Gozde Unal , Tong Fang
IPC分类号： G06K9/00
CPC分类号： G06K9/6207 , G06T7/0012 , G06T7/149 , G06T7/246 , G06T2207/10121 , G06T2207/30021
摘要： A method of tracking a guidewire in video imagery includes: obtaining a first video image including pixels associated with features of a guidewire; selecting a set of parameters to define an open curve on the first video image; determining a feature map of the first video image using phase congruency; and updating the parameters of the open curve using the feature map to align the open curve to the pixels associated with the features of the guidewire.
摘要翻译：在视频图像中跟踪导丝的方法包括：获得包括与导丝的特征相关联的像素的第一视频图像; 选择一组参数以在第一视频图像上定义开放曲线; 使用相位一致性确定第一视频图像的特征图; 并使用特征图更新开放曲线的参数，以将开放曲线对准与导丝的特征相关联的像素。

54. 发明申请

US20070147682A1 System and Method For Feature Detection In Image Sequences 审中-公开
标题翻译：图像序列中特征检测的系统和方法
公开(公告)号：US20070147682A1
公开(公告)日：2007-06-28
申请号：US11566353
申请日：2006-12-04
申请人： Ti-chiun Chang , Tong Fang , Jason Tyan , Yunqiang Chen
发明人： Ti-chiun Chang , Tong Fang , Jason Tyan , Yunqiang Chen
IPC分类号： G06K9/46
CPC分类号： G06K9/52 , G06T7/246 , G06T2207/30004
摘要： A method for processing image data includes inputting image data, determining a plurality of quadrature filter pairs based on filter parameter values to detect features of interest in the image data, applying the quadrature filter pairs to the image data to obtain a set of filter responses, and processing the filter responses to obtain the features of interest in the image data.
摘要翻译：一种处理图像数据的方法包括输入图像数据，基于滤波器参数值确定多个正交滤波器对，以检测图像数据中感兴趣的特征，将正交滤波器对应用于图像数据以获得一组滤波器响应，并处理滤波器响应以获得图像数据中感兴趣的特征。

55. 发明申请

US20070140582A1 Systems and Methods For Reducing Noise In Image Sequences 审中-公开
标题翻译：降低图像序列噪声的系统和方法
公开(公告)号：US20070140582A1
公开(公告)日：2007-06-21
申请号：US11539212
申请日：2006-10-06
申请人： Yunqiang Chen , Chunxiao Zhou , Tong Fang , Jason Tyan
发明人： Yunqiang Chen , Chunxiao Zhou , Tong Fang , Jason Tyan
IPC分类号： G06K9/40
CPC分类号： G06T5/002 , G06T5/20 , G06T5/50 , G06T7/20 , G06T2207/10016 , G06T2207/10116 , G06T2207/20012 , G06T2207/20182 , G06T2207/20192 , G06T2207/30004
摘要： A method for reducing noise in an image sequence includes: detecting structures in an image sequence; estimating lighting changes in the image sequence and compensating for the estimated lighting changes; detecting moving structures in the image sequence using the detected structures after compensating for the estimated lighting changes in the image sequence; and adaptively filtering imaging noise in the image sequence.
摘要翻译：一种用于降低图像序列中的噪声的方法包括：检测图像序列中的结构; 估计图像序列中的照明变化并补偿估计的照明变化; 在补偿图像序列中的估计的照明变化之后，使用检测到的结构来检测图像序列中的移动结构; 并自适应地过滤图像序列中的成像噪声。

56. 发明申请

US20070127754A1 Method and Apparatus for the Classification of Surface Features of an Ear Impression 有权
标题翻译：耳朵印象表面特征分类的方法和装置
公开(公告)号：US20070127754A1
公开(公告)日：2007-06-07
申请号：US11465628
申请日：2006-08-18
申请人： Gregory Slabaugh , Gozde Unal , Tong Fang
发明人： Gregory Slabaugh , Gozde Unal , Tong Fang
IPC分类号： H04R25/00
CPC分类号： G06K9/6206 , H04R25/652 , H04R25/658 , H04R2225/77
摘要： A method and apparatus is disclosed whereby a point on an ear impression model to be labeled is selected and a shape context is determined for that point. This shape context is then compared to average shape contexts for different regions on a reference ear impression model, also referred to herein as an ear impression shape atlas. A cost function is used to determine the minimum cost between the shape context for the selected point and one of the average shape contexts. Once the minimized cost is determined, the region label corresponding to the average shape context having a minimized cost is assigned to that point. In this way, points on the surface of an ear impression are classified and labeled as being located in regions corresponding to the regions on the ear impression shape atlas.
摘要翻译：公开了一种方法和装置，由此选择要标记的耳朵印象模型上的点，并且为该点确定形状上下文。然后将该形状上下文与参考耳印象模型上的不同区域的平均形状上下文进行比较，这里也称为耳朵印象形状图集。成本函数用于确定所选点的形状上下文与平均形状上下文之间的最小成本。一旦确定了最小化成本，则将具有最小化成本的平均形状上下文对应的区域标签分配给该点。以这种方式，将耳朵表面的点分类并标记为位于与耳朵印象形状图集上的区域对应的区域中。

57. 发明授权

US07027637B2 Adaptive threshold determination for ball grid array component modeling 有权
公开(公告)号：US07027637B2
公开(公告)日：2006-04-11
申请号：US10080805
申请日：2002-02-21
申请人： Tong Fang , Ming Fang
发明人： Tong Fang , Ming Fang
IPC分类号： G06K9/00
CPC分类号： G01R1/0483 , G01R31/2889 , G06T7/0004 , G06T7/73 , G06T7/77 , G06T2207/30141 , G06T2207/30148
摘要： A method for determining a number of balls in a projection space comprises determining a projection of a portion of a ball grid array, determining at least one local maximum of the projection space for a given threshold, and determining at least a distance between adjacent maximum. The method further comprises determining an inter-peak histogram of the distances, determining an inter-ball distance for each pair of adjacent balls that has the maximum value of the inter-peak distance histogram corresponding to the pair of adjacent balls, and determining a position of a first ball and a position of a last ball. The method comprises verifying the position of the first ball and the position of the last ball based on a general inter-ball distance, and determining the number of balls.

58. 发明申请

US20060072844A1 Gradient-based image restoration and enhancement 失效
公开(公告)号：US20060072844A1
公开(公告)日：2006-04-06
申请号：US11231435
申请日：2005-09-20
申请人： Hongcheng Wang , Yunqiang Chen , Tong Fang , Jason Tyan
发明人： Hongcheng Wang , Yunqiang Chen , Tong Fang , Jason Tyan
IPC分类号： G06K9/40
CPC分类号： G06K9/40 , G06T5/002 , G06T5/003 , G06T5/20 , G06T2207/20192 , G06T2207/30004
摘要： A gradient-based image enhancement and restoration method and system which applies an orientation-isotropy adaptive filter to the gradients of high structured regions, and directly suppresses the gradients in the noise or texture regions. A new gradient field is obtained from which image reconstruction can progress using least mean squares. The method generally comprises: inputting image data; calculating image gradients; defining the gradients as having large or small coherence; filtering the large coherence gradients for edge enhancement; suppressing the small coherence gradients for noise reduction; assembling an enhanced gradient field from the filtered large coherence and suppressed small coherence gradients; and optimizing the assembled gradient field into a restored image.

59. 发明申请

US20150230874A1 PERSONALIZED ORTHOPEDIC IMPLANT CAD MODEL GENERATION 有权
标题翻译：个性化正交植入CAD模型生成
公开(公告)号：US20150230874A1
公开(公告)日：2015-08-20
申请号：US13817272
申请日：2011-08-16
申请人： Suraj Ravi Musuvathy , Ruirui Jiang , Sergei Azernikov , Gang Li , Tong Fang
发明人： Suraj Ravi Musuvathy , Ruirui Jiang , Sergei Azernikov , Gang Li , Tong Fang
IPC分类号： A61B19/00 , G06T17/20 , G06T17/30 , G06F19/00
CPC分类号： A61B34/10 , A61B2034/105 , A61F2/30942 , A61F2/38 , A61F2002/30948 , A61F2002/30952 , G06F19/00 , G06F19/321 , G06T17/20 , G06T17/30 , G16H50/50
摘要： A computer assisted method creates accurate CAD/CAM models of custom orthopedic implants is provided. Information about bone geometry is acquired through medical imaging such as CT image scans. The desired bone surface region is extracted as a polygonal mesh after processing the 3D images. A smooth and accurate B-Spline surface is fitted to the polygonal mesh that is thickened to a solid CAD model. A patient-specific customized implant is manufactured from the obtained CAD model. The patient-specific customized implant is implanted in a patient by a surgeon in an operating room. A processor based system to generate a CAD/CAM file of the patient-specific customized implant and a manufacturing system enabled to manufacture the implant from the CAD/CAM file are also disclosed.
摘要翻译：计算机辅助方法提供了定制矫形植入物的精确CAD / CAM模型。有关骨骼几何的信息是通过CT图像扫描等医学成像获取的。在处理3D图像之后，期望的骨表面区域被提取为多边形网格。平滑和准确的B样条表面适合于加厚到实体CAD模型的多边形网格。特定于患者的定制植入物由所获得的CAD模型制造。患者特定的定制植入物由手术室中的外科医生植入患者体内。还公开了一种基于处理器的系统，用于生成患者特定定制植入物的CAD / CAM文件和能够从CAD / CAM文件制造植入物的制造系统。

60. 发明授权

US08698800B2 Method and apparatus for non-shrinking mesh smoothing using local fitting 有权
标题翻译：使用局部拟合法进行非收缩网格平滑的方法和装置
公开(公告)号：US08698800B2
公开(公告)日：2014-04-15
申请号：US11466194
申请日：2006-08-22
申请人： Hui Xie , Jin Zhou , Tong Fang
发明人： Hui Xie , Jin Zhou , Tong Fang
IPC分类号： G06T17/20
CPC分类号： G06T17/20
摘要： A method and apparatus for the smoothing of a mesh surface is disclosed whereby neighboring vertices of a target vertex are identified, for example, by identifying the neighboring vertices within a desired distance from the target vertex. A normal of the target vertex is determined as a function of, for example, the features of a set of neighbor triangles corresponding to the set of neighboring vertices. A local coordinate system is then established. Unknowns in a quadratic surface function are then solved as a function of the position of the neighboring vertices with respect to the local coordinate system and new x and y coordinates in the local coordinate system are determined for the target vertex. These new x and y coordinates are entered into the quadratic surface function to obtain a new smoothed z coordinate for the target vertex.
摘要翻译：公开了一种用于平滑网格表面的方法和装置，其中例如通过识别距离目标顶点的期望距离内的相邻顶点来识别目标顶点的相邻顶点。目标顶点的法线被确定为例如与相邻顶点集合相对应的一组相邻三角形的特征的函数。然后建立一个局部坐标系。然后根据相邻顶点相对于局部坐标系的位置求解二次曲面函数中的未知数，并为目标顶点确定局部坐标系中的新x和y坐标。这些新的x和y坐标被输入到二次曲面函数中以获得目标顶点的新的平滑的z坐标。

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