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公开(公告)号：US08768016B2
公开(公告)日：2014-07-01
申请号：US12487729
申请日：2009-06-19
申请人： Liangliang Pan , Jiayong Yan , Wei Wang , Lixing Shi , Victor C. Wong
发明人： Liangliang Pan , Jiayong Yan , Wei Wang , Lixing Shi , Victor C. Wong
IPC分类号： G06K9/00
CPC分类号： G06T7/0012 , A61B5/0088 , G06T7/00 , G06T2207/10024 , G06T2207/10064 , G06T2207/20212 , G06T2207/30036
摘要： A method for quantifying caries, executed at least in part on data processing hardware, the method comprising generating a digital image of a tooth, the image comprising intensity values for a region of pixels corresponding to the tooth, gum, and background; extracting a lesion area from sound tooth regions by identifying tooth regions, extracting suspicious lesion areas, and removing false positives; identifying an adjacent sound region that is adjacent to the extracted lesion area; reconstructing intensity values for tooth tissue within the lesion area according to values in the adjacent sound region; and quantifying the condition of the caries using the reconstructed intensity values and intensity values from the lesion area.
摘要翻译： 一种用于量化至少部分地在数据处理硬件上的龋齿的方法，所述方法包括生成牙齿的数字图像，该图像包括与牙齿，牙龈和背景相对应的像素区域的强度值; 通过识别牙齿区域，提取可疑病变区域和消除假阳性，从声牙区域提取病变区域; 识别与所提取的病变区域相邻的相邻声音区域; 根据相邻声音区域中的值重建损伤区域内的牙齿组织的强度值; 并使用重建的强度值和来自病变区域的强度值来量化龋齿的状况。
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公开(公告)号：US08687859B2
公开(公告)日：2014-04-01
申请号：US12578795
申请日：2009-10-14
申请人： Jiayong Yan , Wei Wang , Liangliang Pan , Victor C. Wong
发明人： Jiayong Yan , Wei Wang , Liangliang Pan , Victor C. Wong
CPC分类号： G06T7/0081 , G06T7/11 , G06T7/136 , G06T7/174 , G06T2207/10064 , G06T2207/30036
摘要： A method for identifying tooth regions. The method includes generating a first threshold image from a first tooth image by selecting intensity data values higher than a first predetermined threshold value c1; generating a second threshold image from a second tooth image by selecting intensity data values higher than a second predetermined threshold value c2; generating a preliminary tooth regions image that defines at least a first tooth region from the intersection of the first and second threshold images; generating a reference binary image from the first image by selecting intensity data values higher than a third predetermined threshold value c3, wherein threshold value c3 exceeds c1; and generating a refined tooth regions image from at least the first tooth region in the preliminary tooth regions image. The first tooth region is connected to objects in the reference binary image.
摘要翻译： 一种识别牙齿区域的方法。 该方法包括通过选择高于第一预定阈值c1的强度数据值从第一齿图像生成第一阈值图像; 通过选择高于第二预定阈值c2的强度数据值从第二齿图像生成第二阈值图像; 产生从所述第一和第二阈值图像的交点确定至少第一齿区域的预备齿区域图像; 通过选择高于第三预定阈值c3的强度数据值从第一图像生成参考二进制图像，其中阈值c3超过c1; 以及从所述预备齿区域图像中的至少所述第一齿区域生成精细的齿区域图像。 第一齿区域连接到参考二进制图像中的对象。
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公开(公告)号：US08520922B2
公开(公告)日：2013-08-27
申请号：US13144308
申请日：2009-01-20
申请人： Wei Wang , Liangliang Pan , Lixing Shi , Victor C. Wong
发明人： Wei Wang , Liangliang Pan , Lixing Shi , Victor C. Wong
IPC分类号： G06K9/00
CPC分类号： A61B5/0088 , G06T5/50 , G06T7/0012 , G06T2207/10004 , G06T2207/10064 , G06T2207/20036 , G06T2207/30036
摘要： A method for forming an enhanced image (60) of a tooth (20) making use of the tooth (20) fluorescence and/or reflectance effects, employs a morphological image processing technique, and reduces susceptibility to overall intensity variations in the image (60).
摘要翻译： 使用牙齿（20）荧光和/或反射效应形成齿（20）的增强图像（60）的方法采用形态学图像处理技术，并且降低对图像中的总体强度变化的敏感性（60 ）。
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公开(公告)号：US20130038710A1
公开(公告)日：2013-02-14
申请号：US13205715
申请日：2011-08-09
申请人： Jean-Marc Inglese , Wei Wang , Liwei Song , Victor C. Wong
发明人： Jean-Marc Inglese , Wei Wang , Liwei Song , Victor C. Wong
IPC分类号： H04N7/18
CPC分类号： A61B5/0071 , A61B5/0088 , A61B5/4547 , G06T3/0075 , G06T7/30 , G06T2207/10064 , G06T2207/30036
摘要： A method for identification of caries, executed at least in part on data processing hardware, captures a plurality of blocks of digital tooth images, each block of tooth images comprising a fluorescence image and one or more reflectance images. At least one registered fluorescence image is generated from the fluorescence image and the one or more reflectance images. A combined image is generated using each of the one or more reflectance images and the at least one registered fluorescence image.
摘要翻译： 一种用于识别龋齿的方法，至少部分地在数据处理硬件上执行，捕获多个数字牙齿图像块，每个块图像包括荧光图像和一个或多个反射图像。 从荧光图像和一个或多个反射图像产生至少一个注册的荧光图像。 使用一个或多个反射图像和至少一个注册荧光图像中的每一个来生成组合图像。
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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。
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公开(公告)号：US20110275034A1
公开(公告)日：2011-11-10
申请号：US13144308
申请日：2009-01-20
申请人： Wei Wang , Liangliang Pan , Lixing Shi , Victor C. Wong
发明人： Wei Wang , Liangliang Pan , Lixing Shi , Victor C. Wong
IPC分类号： A61B6/14
CPC分类号： A61B5/0088 , G06T5/50 , G06T7/0012 , G06T2207/10004 , G06T2207/10064 , G06T2207/20036 , G06T2207/30036
摘要： A method for forming an enhanced image (60) of a tooth (20) making use of the tooth (20) fluorescence and/or reflectance effects, employs a morphological image processing technique, and reduces susceptibility to overall intensity variations in the image (60).
摘要翻译： 使用牙齿（20）荧光和/或反射效应形成齿（20）的增强图像（60）的方法采用形态学图像处理技术，并且降低对图像中的总体强度变化的敏感性（60 ）。
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公开(公告)号：US20110228066A1
公开(公告)日：2011-09-22
申请号：US13117724
申请日：2011-05-27
IPC分类号： H04N7/18
CPC分类号： H04N17/002 , A61B5/0088
摘要： A method for obtaining an image of tooth tissue directs incident light toward a tooth, wherein the incident light excites a fluorescent emission from the tooth tissue. Fluorescence image data is obtained from the fluorescent emission. Back-scattered reflectance image data is obtained from back-scattered light from the tooth tissue. The fluorescence and back-scattered reflectance image data are combined to form an enhanced image of the tooth tissue for caries detection.
摘要翻译： 用于获得牙齿组织的图像的方法将入射光引向牙齿，其中入射光激发来自牙齿组织的荧光发射。 从荧光发射获得荧光图像数据。 背散射反射率图像数据是从牙齿组织的背散射光获得的。 荧光和反向散射反射图像数据被组合以形成用于龋齿检测的牙齿组织的增强图像。
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公开(公告)号：US07596253B2
公开(公告)日：2009-09-29
申请号：US11262869
申请日：2005-10-31
IPC分类号： G06K9/00
CPC分类号： H04N17/002 , A61B5/0088
摘要： A method for obtaining an image of tooth tissue directs incident light toward a tooth (20), wherein the incident light excites a fluorescent emission from the tooth tissue. Specular reflection of incident light from the tooth tissue is reduced. Fluorescence image data (50) is obtained from the fluorescent emission. Back-scattered reflectance image data (52) is obtained from back-scattered light from the tooth tissue. The fluorescence and back-scattered reflectance image data are combined to form an enhanced image (64) of the tooth tissue for caries detection.
摘要翻译： 用于获得牙齿组织的图像的方法将入射光引向牙齿（20），其中入射光激发来自牙齿组织的荧光发射。 减少来自牙齿组织的入射光的镜面反射。 从荧光发射获得荧光图像数据（50）。 背散射反射率图像数据（52）从来自牙齿组织的背散射光获得。 荧光和反向散射反射图像数据被组合以形成用于龋齿检测的牙齿组织的增强图像（64）。
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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
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。
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10.发明授权公开(公告)号：US07340607B2
公开(公告)日：2008-03-04
申请号：US10357775
申请日：2003-02-04
申请人： Vishwas G. Abhyankar , Victor C. Wong , Robert V. Reisch , Robert Breslawski , Robert S. Jones , Donald R. Williams , Robert B. Bayley , Badhri Narayan , Louis S. Horvath
发明人： Vishwas G. Abhyankar , Victor C. Wong , Robert V. Reisch , Robert Breslawski , Robert S. Jones , Donald R. Williams , Robert B. Bayley , Badhri Narayan , Louis S. Horvath
CPC分类号： G06F21/6209 , Y10S707/99931
摘要： A method for preserving a digitally signed document (160) in a digital data preservation system (10). A secure preservation request (176) combines the document (160) with a preservation signature (174) that is generated using an identification mark (172) and the document's associated digital signature (168). Once the document (160) is authenticated by the digital preservation system vendor, both the document (160) and the identification mark (172) are recorded onto preservation media (210) in human-readable form.
摘要翻译： 一种用于在数字数据保存系统（10）中保存经数字签名的文档（160）的方法。 安全保护请求（176）将文档（160）与使用识别标记（172）和文档的相关联的数字签名（168）生成的保存签名（174）组合。 一旦文件（160）由数字保存系统供应商认证，文件（160）和识别标记（172）都以人类可读的形式记录在保存介质（210）上。
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