公开(公告)号：US20110237929A1

公开(公告)日：2011-09-29

申请号：US13062649

申请日：2009-09-08

申请人： Zhengrong Liang ,  Su Wang ,  Chaijie Duan ,  Hongbin Zhu ,  Xianfeng Gu

发明人： Zhengrong Liang ,  Su Wang ,  Chaijie Duan ,  Hongbin Zhu ,  Xianfeng Gu

IPC分类号： A61B5/055

CPC分类号： A61B5/055 ,  A61B5/1075 ,  A61B5/411 ,  G01R33/5602 ,  G01R33/5608

摘要： Disclosed is a method and apparatus for detection of a bladder wall tumor. Layers of a bladder wall are created by magnetic resonance imaging. A group of voxels having a lowest intensity is identified in a layer and an energy function modification enlarges the layer of the bladder wall. A partial volume image segmentation obtains tissue type mixture percentages in each voxel near inner and outer borders of the bladder wall in the layer of the bladder wall to obtain a bladder wall thickness. A range of uncertainty at the inner and outer borders of the bladder wall is obtained, and integration is performed of the bladder wall thickness along a path starting at a point on the outer border and ending at a corresponding point on the inner border.

摘要翻译： 公开了一种用于检测膀胱壁肿瘤的方法和装置。 膀胱壁层由磁共振成像产生。 在层中识别具有最低强度的一组体素，并且能量功能修改扩大了膀胱壁的层。 部分体积图像分割在膀胱壁层中的膀胱壁的内外边界附近的每个体素中获得组织类型混合物百分比，以获得膀胱壁厚度。 在膀胱壁的内外边界处获得一系列不确定性，并且沿着从外边界上的点开始并且在内边界上的对应点处开始的路径执行囊壁厚度的整合。

公开(公告)号：US20100215226A1

公开(公告)日：2010-08-26

申请号：US11993180

申请日：2006-06-21

申请人： Arie E. Kaufman ,  Wei Hong ,  Xianfeng Gu ,  Feng Qiu

发明人： Arie E. Kaufman ,  Wei Hong ,  Xianfeng Gu ,  Feng Qiu

IPC分类号： G06K9/00 ,  G06F3/01

CPC分类号： G06K9/342 ,  G06K2209/053 ,  G06T3/0037 ,  G06T7/0012 ,  G06T15/08 ,  G06T2207/30028

摘要： In the present methods, the automatic detection of polyps is converted into a 2D pattern recognition problem using conformal mapping and direct volume rendering. The colon surface is first segmented and extracted from the CT data set of the abdomen, which is then mapped to a 2D plane using conformal mapping. Ray casting is used to determine sub-surface density values and the flattened image is rendered using a volume rendering technique with a translucent electronic biopsy transfer function. Polyp candidates are detected by a clustering method which identifies regions of elevated sub-surface density. The potential for false positives is reduced by analyzing the volumetric shape and texture features of the polyp candidate regions.

摘要翻译： 在本方法中，使用保形映射和直接体绘制，将息肉的自动检测转换为2D模式识别问题。 首先将结肠表面分割并从腹部的CT数据集中提取出来，然后使用保形图映射到2D平面。 Ray铸造用于确定亚表面密度值，并且使用具有半透明电子活检传递函数的体绘制技术来渲染平坦化图像。 通过聚类方法检测Polyp候选物，其识别升高的亚表面密度的区域。 通过分析息肉候选区域的体积形状和纹理特征来减少假阳性的潜力。

公开(公告)号：US07929751B2

公开(公告)日：2011-04-19

申请号：US12084799

申请日：2006-11-09

申请人： Song Zhang ,  Shing-Tung Yau ,  Xianfeng Gu ,  Yalin Wang ,  Dale Royer

发明人： Song Zhang ,  Shing-Tung Yau ,  Xianfeng Gu ,  Yalin Wang ,  Dale Royer

IPC分类号： G06K9/00

CPC分类号： G01B11/2536 ,  G06T7/521

摘要： A method and associated apparatus for capturing an image of a 3D object (100) which encodes the surface geometry of at least a portion of the object, comprising: 1. projecting (304) a plurality of fringe patterns (312A, 314A) onto the object; 2. capturing (306) phase alterations in reflections of the fringe patterns (312B, 314B) from the object; 3. projecting a uniform image (310A) onto the object; 4. capturing a reflection of the uniform image (310B) from the object; and 5. combining (310) captured phase alterations and captured uniform image reflection on a pixel-by-pixel basis, thereby forming a holoimage representation of the object.

摘要翻译： 一种用于捕获对象物的至少一部分的表面几何形状的3D物体（100）的图像的方法和相关联的装置，包括：1.将多个条纹图案（312A，314A）突出（304）到 目的; 2.从物体捕获（306）条纹图案（312B，314B）的反射相位变化; 3.将均匀图像（310A）投射到物体上; 从对象中捕获均匀图像（310B）的反射; 并且，以逐像素为基础组合（310）捕获的相位变化和捕获的均匀图像反射，从而形成对象的全息图像表示。

公开(公告)号：US09563831B2

公开(公告)日：2017-02-07

申请号：US14734137

申请日：2015-06-09

申请人： Satya Prakash Sharma ,  Xianfeng Gu ,  Robert James Hart

发明人： Satya Prakash Sharma ,  Xianfeng Gu ,  Robert James Hart

IPC分类号： G06K19/06 ,  G06K19/14 ,  G06Q30/00

CPC分类号： G06K19/06159 ,  G06K19/06037 ,  G06K19/0614 ,  G06K19/14 ,  G06Q30/0185

摘要： A method of, and a system and a label for, authenticating an object in situ create an authentication pattern signature for the object to be authenticated, associate a random distribution of multiple, three-dimensional elements with the object, aim a portable, handheld, image capture device at the object to capture return light from the elements as a single image, verify from the single image that the elements are three-dimensional, process the single image to generate an image pattern of the elements, compare the image pattern with the authentication pattern signature, and indicate that the object is authentic when the image pattern matches the authentication pattern signature.

摘要翻译： 用于原位认证对象的方法，系统和标签为待认证的对象创建认证模式签名，将多个三维元素的随机分布与对象相关联，将便携式，手持式， 物体上的图像捕获装置捕获从元素返回光作为单个图像，从单个图像验证元素是三维的，处理单个图像以生成元素的图像图案，将图像图案与 认证模式签名，并且当图像模式与认证模式签名匹配时，指示对象是真实的。

公开(公告)号：US20090238449A1

公开(公告)日：2009-09-24

申请号：US12084799

申请日：2006-11-09

申请人： Song Zhang ,  Shing-Tung Yau ,  Xianfeng Gu ,  Yalin Wang ,  Dale Royer

发明人： Song Zhang ,  Shing-Tung Yau ,  Xianfeng Gu ,  Yalin Wang ,  Dale Royer

IPC分类号： G06K9/00

CPC分类号： G01B11/2536 ,  G06T7/521

摘要： A method and associated apparatus for capturing an image of a 3D object (100) which encodes the surface geometry of at least a portion of the object, comprising: 1. projecting (304) a plurality of fringe patterns (312A, 314A) onto the object; 2. capturing (306) phase alterations in reflections of the fringe patterns (312B, 314B) from the object; 3. projecting a uniform image (310A) onto the object; 4. capturing a reflection of the uniform image (310B) from the object; and 5. combining (310) captured phase alterations and captured uniform image reflection on a pixel-by-pixel basis, thereby forming a holoimage representation of the object.

摘要翻译： 一种用于捕获对象物的至少一部分的表面几何形状的3D物体（100）的图像的方法和相关联的装置，包括：1.将多个条纹图案（312A，314A）突出（304）到 目的; 2.从物体捕获（306）条纹图案（312B，314B）的反射相位变化; 3.将均匀图像（310A）投射到物体上; 从对象中捕获均匀图像（310B）的反射; 并且，以逐像素为基础组合（310）捕获的相位变化和捕获的均匀图像反射，从而形成对象的全息图像表示。

公开(公告)号：US09082062B2

公开(公告)日：2015-07-14

申请号：US13269726

申请日：2011-10-10

申请人： Satya Prakash Sharma ,  Xianfeng Gu ,  Robert James Hart

发明人： Satya Prakash Sharma ,  Xianfeng Gu ,  Robert James Hart

IPC分类号： G06K7/10 ,  G06K19/14 ,  G06K19/06

CPC分类号： G06K19/06159 ,  G06K19/06037 ,  G06K19/0614 ,  G06K19/14 ,  G06Q30/0185

摘要： A method of, and a system and a label for, authenticating an object in situ create an authentication pattern signature for the object to be authenticated, associate a random distribution of multiple, three-dimensional elements with the object, aim a portable, handheld, image capture device at the object to capture return light from the elements as a single image, verify from the single image that the elements are three-dimensional, process the single image to generate an image pattern of the elements, compare the image pattern with the authentication pattern signature, and indicate that the object is authentic when the image pattern matches the authentication pattern signature.

摘要翻译： 用于原位认证对象的方法，系统和标签为待认证的对象创建认证模式签名，将多个三维元素的随机分布与对象相关联，将便携式，手持式， 物体上的图像捕获装置捕获从元素返回光作为单个图像，从单个图像验证元素是三维的，处理单个图像以生成元素的图像图案，将图像图案与 认证模式签名，并且当图像模式与认证模式签名匹配时，指示对象是真实的。

公开(公告)号：US20080095413A1

公开(公告)日：2008-04-24

申请号：US11643045

申请日：2006-12-19

申请人： Shing-Tung Yau ,  Xianfeng Gu ,  Zhiwu Zhang

发明人： Shing-Tung Yau ,  Xianfeng Gu ,  Zhiwu Zhang

IPC分类号： G06K9/00

CPC分类号： G06K9/00067 ,  G06K9/00073 ,  G06K9/0008 ,  G06K9/00087 ,  G06K9/036

摘要： A method of analyzing and recognizing fingerprint images that utilizes vector processing of a vector field that is defined as the tangential vector of the fingerprint ridge curves is disclosed. The raw fingerprint image is divided into blocks, filtered to remove noise, and the orientation direction of each block is found. This allows the ridge curves to be enhanced and approximated by piece-wise linear approximations. The piece-wise linear approximations to the ridge curves allow the minutiae to be extracted and classified and a fingerprint minutiae template to be constructed. An enrollment process gathers multiple fingerprint images, creates fingerprint minutiae templates corresponding to the acquired fingerprint images, and stores the templates and other data associated with the respective individual or the enrolled fingerprint in a fingerprint database. In an identification process, an unknown raw fingerprint image is obtained via a fingerprint scanner and processed similarly to the enrollment process such that the fingerprint minutiae template of the unknown fingerprint is compared to one or more previously enrolled fingerprint minutiae templates. The identity of the individual associated with the unknown fingerprint is thereby ascertained. In addition, live finger detection can be accomplished in conjunction with the verification or identification process through analysis of the fingerprint image thus enhancing the security of the overall system.

摘要翻译： 公开了一种分析和识别使用定义为指纹脊曲线的切向矢量的矢量场的矢量处理的指纹图像的方法。 原始指纹图像被分成块，过滤以去除噪声，并且找到每个块的取向方向。 这允许通过分段线性近似增强和近似脊曲线。 对脊曲线的分段线性近似允许提取和分类细节，并构建指纹细节模板。 注册过程收集多个指纹图像，创建与所获取的指纹图像相对应的指纹细节模板，并将与相应个体或登记指纹相关联的模板和其他数据存储在指纹数据库中。 在识别过程中，通过指纹扫描器获得未知的原始指纹图像，并且与注册过程类似地进行处理，使得将未知指纹的指纹细节模板与一个或多个先前注册的指纹细节模板进行比较。 由此确定与未知指纹相关联的个体的身份。 此外，通过分析指纹图像可以结合验证或识别过程来实现实时手指检测，从而增强整个系统的安全性。

公开(公告)号：US06876757B2

公开(公告)日：2005-04-05

申请号：US10156447

申请日：2002-05-28

申请人： Shing-Tung Yau ,  Xianfeng Gu ,  Zhiwu Zhang

发明人： Shing-Tung Yau ,  Xianfeng Gu ,  Zhiwu Zhang

IPC分类号： G06K9/00

CPC分类号： G06K9/00067 ,  G06K9/00073 ,  G06K9/0008 ,  G06K9/00087 ,  G06K9/036

摘要： A method of analyzing and recognizing fingerprint images that utilizes vector processing of a vector field that is defined as the tangential vector of the fingerprint ridge curves is disclosed. The raw fingerprint image is divided into blocks, filtered to remove noise, and the orientation direction of each block is found. This allows the ridge curves to be enhanced and approximated by piece-wise linear approximations. The piece-wise linear approximations to the ridge curves allow the minutiae to be extracted and classified and a fingerprint minutiae template to be constructed. An enrollment process gathers multiple fingerprint images, creates fingerprint minutiae templates corresponding to the acquired fingerprint images, and stores the templates and other data associated with the respective individual or the enrolled fingerprint in a fingerprint database. In an identification process, an unknown raw fingerprint image is obtained via a fingerprint scanner and processed similarly to the enrollment process such that the fingerprint minutiae template of the unknown fingerprint is compared to one or more previously enrolled fingerprint minutiae templates. The identity of the individual associated with the unknown fingerprint is thereby ascertained. In addition, live finger detection can be accomplished in conjunction with the verification or identification process through analysis of the fingerprint image thus enhancing the security of the overall system.

摘要翻译： 公开了一种分析和识别使用定义为指纹脊曲线的切向矢量的矢量场的矢量处理的指纹图像的方法。 原始指纹图像被分成块，过滤以去除噪声，并且找到每个块的取向方向。 这允许通过分段线性近似增强和近似脊曲线。 对脊曲线的分段线性近似允许提取和分类细节，并构建指纹细节模板。 注册过程收集多个指纹图像，创建与所获取的指纹图像相对应的指纹细节模板，并将与相应个体或登记指纹相关联的模板和其他数据存储在指纹数据库中。 在识别过程中，通过指纹扫描器获得未知的原始指纹图像，并且与注册过程类似地进行处理，使得将未知指纹的指纹细节模板与一个或多个先前注册的指纹细节模板进行比较。 由此确定与未知指纹相关联的个体的身份。 此外，通过分析指纹图像可以结合验证或识别过程来实现实时手指检测，从而增强整个系统的安全性。

公开(公告)号：US20150269469A1

公开(公告)日：2015-09-24

申请号：US14734137

申请日：2015-06-09

申请人： Satya Prakash Sharma ,  Xianfeng Gu ,  Robert James Hart

发明人： Satya Prakash Sharma ,  Xianfeng Gu ,  Robert James Hart

IPC分类号： G06K19/06 ,  G06Q30/00

CPC分类号： G06K19/06159 ,  G06K19/06037 ,  G06K19/0614 ,  G06K19/14 ,  G06Q30/0185

摘要： A method of, and a system and a label for, authenticating an object in situ create an authentication pattern signature for the object to be authenticated, associate a random distribution of multiple, three-dimensional elements with the object, aim a portable, handheld, image capture device at the object to capture return light from the elements as a single image, verify from the single image that the elements are three-dimensional, process the single image to generate an image pattern of the elements, compare the image pattern with the authentication pattern signature, and indicate that the object is authentic when the image pattern matches the authentication pattern signature.

摘要翻译： 用于原位认证对象的方法，系统和标签为待认证的对象创建认证模式签名，将多个三维元素的随机分布与对象相关联，将便携式，手持式， 物体上的图像捕获装置捕获从元素返回光作为单个图像，从单个图像验证元素是三维的，处理单个图像以生成元素的图像图案，将图像图案与 认证模式签名，并且当图像模式与认证模式签名匹配时，指示对象是真实的。

公开(公告)号：US08600125B2

公开(公告)日：2013-12-03

申请号：US11993180

申请日：2006-06-21

申请人： Arie E. Kaufman ,  Wei Hong ,  Xianfeng Gu ,  Feng Qiu

发明人： Arie E. Kaufman ,  Wei Hong ,  Xianfeng Gu ,  Feng Qiu

IPC分类号： G06K9/00

CPC分类号： G06K9/342 ,  G06K2209/053 ,  G06T3/0037 ,  G06T7/0012 ,  G06T15/08 ,  G06T2207/30028

摘要： In the present methods, the automatic detection of polyps is converted into a 2D pattern recognition problem using conformal mapping and direct volume rendering. The colon surface is first segmented and extracted from the CT data set of the abdomen, which is then mapped to a 2D plane using conformal mapping. Ray casting is used to determine sub-surface density values and the flattened image is rendered using a volume rendering technique with a translucent electronic biopsy transfer function. Polyp candidates are detected by a clustering method which identifies regions of elevated sub-surface density. The potential for false positives is reduced by analyzing the volumetric shape and texture features of the polyp candidate regions.

摘要翻译： 在本方法中，使用保形映射和直接体绘制，将息肉的自动检测转换为2D模式识别问题。 首先将结肠表面分割并从腹部的CT数据集中提取出来，然后使用保形图映射到2D平面。 Ray铸造用于确定亚表面密度值，并且使用具有半透明电子活检传递函数的体绘制技术来渲染平坦化图像。 通过聚类方法检测Polyp候选物，其识别升高的亚表面密度的区域。 通过分析息肉候选区域的体积形状和纹理特征来减少假阳性的潜力。