公开(公告)号：US08494248B2

公开(公告)日：2013-07-23

申请号：US13693201

申请日：2012-12-04

申请人： Andre Souza ,  Peter D. Burns

发明人： Andre Souza ,  Peter D. Burns

IPC分类号： G06K9/00

CPC分类号： G06T7/0012 ,  A61B6/027 ,  A61B6/5258 ,  G06T5/002 ,  G06T11/005 ,  G06T2207/10081

摘要： A method for suppressing noise in a diagnostic 3-D image, executed at least in part on a logic processor, captures, at each of a number of projection angles, 2-D image projection data, wherein each 2-D image projection has a central pixel and arranges the 2-D image projection data to form a 3-D data set. Each of the 2-D image projections is processed by performing a diffusion filtering process that obtains a homogeneity value for the 3-D data set, generates a diffusion conductance function according to an intensity gradient between adjacent digital image elements, and applies the diffusion filtering process to digital image elements according to the obtained homogeneity value, the generated diffusion conductance function, and a weighting value that relates to the distance of each pixel in the projection from the central pixel. The diagnostic 3-D image is reconstructed from the processed 2-D image projections.

公开(公告)号：US20130094747A1

公开(公告)日：2013-04-18

申请号：US13693201

申请日：2012-12-04

申请人： Andre Souza ,  Peter D. Burns

发明人： Andre Souza ,  Peter D. Burns

IPC分类号： A61B6/00

CPC分类号： G06T7/0012 ,  A61B6/027 ,  A61B6/5258 ,  G06T5/002 ,  G06T11/005 ,  G06T2207/10081

摘要： A method for suppressing noise in a diagnostic 3-D image, executed at least in part on a logic processor, captures, at each of a number of projection angles, 2-D image projection data, wherein each 2-D image projection has a central pixel and arranges the 2-D image projection data to form a 3-D data set. Each of the 2-D image projections is processed by performing a diffusion filtering process that obtains a homogeneity value for the 3-D data set, generates a diffusion conductance function according to an intensity gradient between adjacent digital image elements, and applies the diffusion filtering process to digital image elements according to the obtained homogeneity value, the generated diffusion conductance function, and a weighting value that relates to the distance of each pixel in the projection from the central pixel. The diagnostic 3-D image is reconstructed from the processed 2-D image projections.

公开(公告)号：US08306302B2

公开(公告)日：2012-11-06

申请号：US12239844

申请日：2008-09-29

申请人： Andre Souza ,  Peter D. Burns

发明人： Andre Souza ,  Peter D. Burns

IPC分类号： G06K9/00

CPC分类号： G06T7/11 ,  G06T2207/10072 ,  G06T2207/10076 ,  G06T2207/10081 ,  G06T2207/30036

摘要： A method for suppressing noise in a diagnostic image executes one or more iterations of segmenting the image to identify and label one or more regions in the image; and performing selective diffusion on at least one of the one or more labeled regions in the image. A homogeneity value is computed for the region. A diffusion conductance function is generated for the region according to an intensity gradient between adjacent digital image elements within the region. The diffusion process is applied to a plurality of digital image elements within the region.

摘要翻译： 用于抑制诊断图像中的噪声的方法执行分割图像的一个或多个迭代，以识别和标记图像中的一个或多个区域; 以及对图像中的一个或多个标记区域中的至少一个进行选择性扩散。 计算该区域的均匀性值。 根据区域内的相邻数字图像元素之间的强度梯度，为该区域产生扩散电导函数。 扩散处理被应用于该区域内的多个数字图像元素。

公开(公告)号：US20130094746A1

公开(公告)日：2013-04-18

申请号：US13693180

申请日：2012-12-04

申请人： Andre Souza ,  Peter D. Burns

发明人： Andre Souza ,  Peter D. Burns

IPC分类号： G06T7/00

CPC分类号： G06T7/0012 ,  A61B6/027 ,  A61B6/5258 ,  G06T5/002 ,  G06T11/005 ,  G06T2207/10081

摘要： A method for suppressing noise in a diagnostic 3-D image, executed at least in part on a logic processor, captures, at each of a number of projection angles, 2-D image projection data, wherein each 2-D image projection has a central pixel and arranges the 2-D image projection data to form a 3-D data set. Each of the 2-D image projections is processed by performing a diffusion filtering process that obtains a homogeneity value for the 3-D data set, generates a diffusion conductance function according to an intensity gradient between adjacent digital image elements, and applies the diffusion filtering process to digital image elements according to the obtained homogeneity value, the generated diffusion conductance function, and a weighting value that relates to the distance of each pixel in the projection from the central pixel. The diagnostic 3-D image is reconstructed from the processed 2-D image projections.

摘要翻译： 至少部分地在逻辑处理器上执行的用于抑制诊断3-D图像中的噪声的方法在多个投影角度的每个投影角度捕获2-D图像投影数据，其中每个2-D图像投影具有 中心像素，并排列2-D图像投影数据，形成3-D数据集。 通过执行获得3-D数据集合的均匀性值的扩散滤波处理来处理每个2-D图像投影，根据相邻数字图像元素之间的强度梯度产生扩散电导函数，并施加扩散滤波 根据获得的均匀性值，所产生的扩散电导函数以及与投影中的每个像素与中心像素的距离相关的加权值对数字图像元素进行处理。 从处理的2-D图像投影重建诊断3-D图像。

公开(公告)号：US20100080430A1

公开(公告)日：2010-04-01

申请号：US12239844

申请日：2008-09-29

申请人： Andre Souza ,  Peter D. Burns

发明人： Andre Souza ,  Peter D. Burns

IPC分类号： G06K9/40

CPC分类号： G06T7/11 ,  G06T2207/10072 ,  G06T2207/10076 ,  G06T2207/10081 ,  G06T2207/30036

摘要： A method for suppressing noise in a diagnostic image executes one or more iterations of segmenting the image to identify and label one or more regions in the image; and performing selective diffusion on at least one of the one or more labeled regions in the image. A homogeneity value is computed for the region. A diffusion conductance function is generated for the region according to an intensity gradient between adjacent digital image elements within the region. The diffusion process is applied to a plurality of digital image elements within the region.

摘要翻译： 用于抑制诊断图像中的噪声的方法执行分割图像的一个或多个迭代，以识别和标记图像中的一个或多个区域; 以及对图像中的一个或多个标记区域中的至少一个进行选择性扩散。 计算该区域的均匀性值。 根据区域内的相邻数字图像元素之间的强度梯度，为该区域产生扩散电导函数。 扩散处理被应用于该区域内的多个数字图像元素。

公开(公告)号：US08346007B2

公开(公告)日：2013-01-01

申请号：US12644287

申请日：2009-12-22

申请人： Andre Souza ,  Peter D. Burns

发明人： Andre Souza ,  Peter D. Burns

IPC分类号： G06K9/40 ,  G06K9/00 ,  G06T15/00

CPC分类号： G06T7/0012 ,  A61B6/027 ,  A61B6/5258 ,  G06T5/002 ,  G06T11/005 ,  G06T2207/10081

摘要： A method for suppressing noise in a diagnostic 3-D image, executed at least in part on a logic processor, captures, at each of a number of projection angles, 2-D image projection data, wherein each 2-D image projection has a central pixel and arranges the 2-D image projection data to form a 3-D data set. Each of the 2-D image projections is processed by performing a diffusion filtering process that obtains a homogeneity value for the 3-D data set, generates a diffusion conductance function according to an intensity gradient between adjacent digital image elements, and applies the diffusion filtering process to digital image elements according to the obtained homogeneity value, the generated diffusion conductance function, and a weighting value that relates to the distance of each pixel in the projection from the central pixel. The diagnostic 3-D image is reconstructed from the processed 2-D image projections.

摘要翻译： 至少部分地在逻辑处理器上执行的用于抑制诊断3-D图像中的噪声的方法在多个投影角度的每个投影角度捕获2-D图像投影数据，其中每个2-D图像投影具有 中心像素，并排列2-D图像投影数据，形成3-D数据集。 通过执行获得3-D数据集合的均匀性值的扩散滤波处理来处理每个2-D图像投影，根据相邻数字图像元素之间的强度梯度产生扩散电导函数，并施加扩散滤波 根据获得的均匀性值，所产生的扩散电导函数以及与投影中的每个像素与中心像素的距离相关的加权值对数字图像元素进行处理。 从处理的2-D图像投影重建诊断3-D图像。

公开(公告)号：US20110150307A1

公开(公告)日：2011-06-23

申请号：US12644287

申请日：2009-12-22

申请人： Andre Souza ,  Peter D. Burns

发明人： Andre Souza ,  Peter D. Burns

IPC分类号： G06K9/40 ,  G06K9/00

CPC分类号： G06T7/0012 ,  A61B6/027 ,  A61B6/5258 ,  G06T5/002 ,  G06T11/005 ,  G06T2207/10081

摘要： A method for suppressing noise in a diagnostic 3-D image, executed at least in part on a logic processor, captures, at each of a number of projection angles, 2-D image projection data, wherein each 2-D image projection has a central pixel and arranges the 2-D image projection data to form a 3-D data set. Each of the 2-D image projections is processed by performing a diffusion filtering process that obtains a homogeneity value for the 3-D data set, generates a diffusion conductance function according to an intensity gradient between adjacent digital image elements, and applies the diffusion filtering process to digital image elements according to the obtained homogeneity value, the generated diffusion conductance function, and a weighting value that relates to the distance of each pixel in the projection from the central pixel. The diagnostic 3-D image is reconstructed from the processed 2-D image projections.

摘要翻译： 至少部分地在逻辑处理器上执行的用于抑制诊断3-D图像中的噪声的方法在多个投影角度的每个投影角度捕获2-D图像投影数据，其中每个2-D图像投影具有 中心像素，并排列2-D图像投影数据，形成3-D数据集。 通过执行获得3-D数据集合的均匀性值的扩散滤波处理来处理每个2-D图像投影，根据相邻数字图像元素之间的强度梯度产生扩散电导函数，并施加扩散滤波 根据获得的均匀性值，所产生的扩散电导函数以及与投影中的每个像素与中心像素的距离相关的加权值对数字图像元素进行处理。 从处理的2-D图像投影重建诊断3-D图像。

公开(公告)号：US08630473B2

公开(公告)日：2014-01-14

申请号：US13693180

申请日：2012-12-04

申请人： Andre Souza ,  Peter D. Burns

发明人： Andre Souza ,  Peter D. Burns

IPC分类号： G06K9/00 ,  G06K9/40

CPC分类号： G06T7/0012 ,  A61B6/027 ,  A61B6/5258 ,  G06T5/002 ,  G06T11/005 ,  G06T2207/10081

摘要： A method for suppressing noise in a diagnostic 3-D image, executed at least in part on a logic processor, captures, at each of a number of projection angles, 2-D image projection data, wherein each 2-D image projection has a central pixel and arranges the 2-D image projection data to form a 3-D data set. Each of the 2-D image projections is processed by performing a diffusion filtering process that obtains a homogeneity value for the 3-D data set, generates a diffusion conductance function according to an intensity gradient between adjacent digital image elements, and applies the diffusion filtering process to digital image elements according to the obtained homogeneity value, the generated diffusion conductance function, and a weighting value that relates to the distance of each pixel in the projection from the central pixel. The diagnostic 3-D image is reconstructed from the processed 2-D image projections.

摘要翻译： 至少部分地在逻辑处理器上执行的用于抑制诊断3-D图像中的噪声的方法在多个投影角度的每个投影角度捕获2-D图像投影数据，其中每个2-D图像投影具有 中心像素，并排列2-D图像投影数据，形成3-D数据集。 通过执行获得3-D数据集合的均匀性值的扩散滤波处理来处理每个2-D图像投影，根据相邻数字图像元素之间的强度梯度产生扩散电导函数，并施加扩散滤波 根据获得的均匀性值，所产生的扩散电导函数以及与投影中的每个像素与中心像素的距离相关的加权值对数字图像元素进行处理。 从处理的2-D图像投影重建诊断3-D图像。

公开(公告)号：US08270689B2

公开(公告)日：2012-09-18

申请号：US11530987

申请日：2006-09-12

申请人： Rongguang Liang ,  Victor C. Wong ,  Michael A. Marcus ,  Mark E. Bridges ,  Paul O. McLaughlin ,  Peter D. Burns ,  David L. Patton

发明人： Rongguang Liang ,  Victor C. Wong ,  Michael A. Marcus ,  Mark E. Bridges ,  Paul O. McLaughlin ,  Peter D. Burns ,  David L. Patton

IPC分类号： G06K9/00

CPC分类号： A61B5/0088 ,  A61B1/043 ,  A61B1/0607 ,  A61B1/0638 ,  A61B1/0646 ,  A61B1/0684 ,  A61B1/24 ,  A61B5/0035 ,  A61B5/0066 ,  A61B5/0071 ,  A61B5/0075 ,  A61B5/4547 ,  A61B5/742 ,  A61B5/7425 ,  A61C1/088 ,  G01B9/02091 ,  G01B11/2441 ,  G01J3/02 ,  G01J3/0213 ,  G01J3/0224 ,  G01J3/0272 ,  G01J3/10 ,  G01J3/4406 ,  G01J3/508 ,  G01N21/4795 ,  G01N21/6445 ,  G01N21/6456 ,  G01N21/6486 ,  G01N2021/1787

摘要： An apparatus for obtaining an image of a tooth having at least one light source providing incident light having a first spectral range for obtaining a reflectance image (122) from the tooth and a second spectral range for exciting a fluorescence image (120) from the tooth. A polarizing beamsplitter (18) in the path of the incident light from both sources directs light having a first polarization state toward the tooth and directs light from the tooth having a second polarization state along a return path toward a sensor (68), wherein the second polarization state is orthogonal to the first polarization state. A first lens (22) in the return path directs image-bearing light from the tooth toward the sensor (68), and obtains image data from the portion of the light having the second polarization state. A long-pass filter (15) in the return path attenuates light in the second spectral range.

摘要翻译： 一种用于获得具有至少一个光源的齿的图像的装置，所述至少一个光源提供具有第一光谱范围的入射光，以从所述牙齿获得反射图像（122）和用于从所述牙齿激发荧光图像（120）的第二光谱范围 。 来自两个源的入射光的路径中的偏振分束器（18）将具有第一偏振态的光朝向齿引导，并将来自具有第二偏振态的齿沿着返回路径引导到传感器（68），其中， 第二偏振态与第一偏振态正交。 返回路径中的第一透镜（22）将来自齿的图像承载光朝向传感器（68）引导，并从具有第二偏振状态的光的部分获得图像数据。 返回路径中的长通滤波器（15）衰减第二光谱范围内的光。

公开(公告)号：US20080090198A1

公开(公告)日：2008-04-17

申请号：US11549208

申请日：2006-10-13

申请人： Rongguang Liang ,  Victor C. Wong ,  Mark E. Bridges ,  Michael A. Marcus ,  David L. Patton ,  Peter D. Burns ,  Paul O. McLaughlin

发明人： Rongguang Liang ,  Victor C. Wong ,  Mark E. Bridges ,  Michael A. Marcus ,  David L. Patton ,  Peter D. Burns ,  Paul O. McLaughlin

IPC分类号： A61C1/00 ,  A61C5/00

CPC分类号： G01J3/51 ,  A61B1/00186 ,  A61B1/043 ,  A61B1/0615 ,  A61B1/0623 ,  A61B1/0638 ,  A61B1/247 ,  A61B5/0066 ,  A61B5/0088 ,  G01B11/285 ,  G01J3/02 ,  G01J3/0213 ,  G01J3/0224 ,  G01J3/36 ,  G01J3/4406 ,  G01J3/50 ,  G01J3/501 ,  G01J3/508 ,  G01J2003/468 ,  G01N21/6456

摘要： An apparatus for imaging a tooth having a light source with a first spectral range and a second spectral range. A polarizing beamsplitter (18) light having a first polarization state toward the tooth and directs light from the tooth having a second polarization state along a return path toward a sensor (68), wherein the first and second polarization states are orthogonal. A first lens (22) in the return path directs image-bearing light from the tooth, through the polarizing beamsplitter (18), toward the sensor (68), and obtains image data from the redirected portion of the light having the second polarization state. A long-pass filter (15) in the return path attenuates light in the second spectral range. Control logic enables the sensor to obtain either the reflectance image or the fluorescence image.

摘要翻译： 一种用于对具有第一光谱范围和第二光谱范围的光源成像牙齿的装置。 一种偏振分束器（18），其具有朝向齿的第一偏振态，并且沿着返回路径将来自具有第二偏振状态的齿导向传感器（68），其中第一和第二偏振态是正交的。 返回路径中的第一透镜（22）将来自齿的图像承载光通过偏振分束器（18）朝向传感器（68）引导，并从具有第二偏振状态的光的重定向部分获得图像数据 。 返回路径中的长通滤波器（15）衰减第二光谱范围内的光。 控制逻辑使传感器能够获得反射图像或荧光图像。