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1. 发明申请

US20070248931A1 Optical detection of dental caries 有权
标题翻译：龋齿的光学检测
公开(公告)号：US20070248931A1
公开(公告)日：2007-10-25
申请号：US11408360
申请日：2006-04-21
申请人： Victor Wong , Rongguang Liang , Michael Marcus , Paul McLaughlin , David Patton
发明人： Victor Wong , Rongguang Liang , Michael Marcus , Paul McLaughlin , David Patton
IPC分类号： A61C1/00
CPC分类号： A61B5/0088
摘要： A method for caries detection uses an image capture device (30, 32) to obtain fluorescence image data from the tooth (20) by illuminating the tooth to excite fluorescent emission. A first enhanced image of the tooth is then obtained by illuminating the tooth at a first incident angle, obtaining a back-scattered reflectance image data from the tooth tissue, and combining the back-scattered reflectance image data with the fluorescence image data. A second enhanced image of the tooth is then obtained by illuminating the tooth at a second incident angle, obtaining a back-scattered reflectance image data from the tooth tissue, and combining the back-scattered reflectance image data with the fluorescence image data. The first and second enhanced images are then analyzed to select and display the best-contrast image. This method provides high contrast images for carious regions (58) on all tooth surfaces.
摘要翻译：用于龋齿检测的方法使用图像捕获装置（30,32）通过照亮牙齿来激发荧光发射来从牙齿（20）获得荧光图像数据。然后通过以第一入射角照射牙齿获得牙齿的第一增强图像，从牙齿组织获得反向散射反射图像数据，并将后向散射反射图像数据与荧光图像数据组合。然后通过以第二入射角照射牙齿获得牙齿的第二增强图像，从牙齿组织获得反向散射反射图像数据，并将后向散射反射图像数据与荧光图像数据组合。然后分析第一和第二增强图像以选择和显示最佳对比度图像。该方法为所有牙齿表面上的龋齿区域（58）提供高对比度图像。

2. 发明申请

US20070114425A1 Radiographic image sensing system 有权
标题翻译：射线照相影像感应系统
公开(公告)号：US20070114425A1
公开(公告)日：2007-05-24
申请号：US11285258
申请日：2005-11-22
申请人： Victor Wong , Rongguang Liang
发明人： Victor Wong , Rongguang Liang
IPC分类号： G01T1/24 , G01T1/20 , H01L27/146 , H01L25/00 , H01L27/00
CPC分类号： G01T1/2002 , H01L27/14625
摘要： An x-ray imaging source comprises a radiation source (12) providing x-ray radiation. A substrate comprised of a scintillating material (16) responsive to a level of incident radiation provides output light according to the level of incident radiation. A Fresnel lens (40) is disposed proximate to the substrate for directing the output light toward a second lens. The second lens directs the output light to an image sensor for converting light levels to the digital data, forming an image thereby.
摘要翻译： X射线成像源包括提供x射线辐射的辐射源（12）。由响应于入射辐射水平的闪烁材料（16）构成的衬底根据入射辐射的水平提供输出光。菲尼尔透镜（40）靠近基板设置，用于将输出光引向第二透镜。第二透镜将输出光引导到用于将光级转换成数字数据的图像传感器，从而形成图像。

3. 发明申请

US20070099148A1 Method and apparatus for detection of caries 有权
标题翻译：用于检测龋齿的方法和装置
公开(公告)号：US20070099148A1
公开(公告)日：2007-05-03
申请号：US11262869
申请日：2005-10-31
申请人： Victor Wong , Rongguang Liang , Donna Rankin-Parobek
发明人： Victor Wong , Rongguang Liang , Donna Rankin-Parobek
IPC分类号： A61C3/00 , A61C5/00
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. 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。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）。

4. 发明授权

US08605974B2 Apparatus for caries detection 有权
公开(公告)号：US08605974B2
公开(公告)日：2013-12-10
申请号：US13485996
申请日：2012-06-01
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 from the tooth and a second spectral range for exciting a fluorescence image from the tooth. A polarizing beamsplitter 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, wherein the second polarization state is orthogonal to the first polarization state. A first lens in the return path directs image-bearing light from the tooth toward the sensor, and obtains image data from the portion of the light having the second polarization state. A long-pass filter in the return path attenuates light in the second spectral range.

5. 发明授权

US08447083B2 Method for detection of caries 有权
标题翻译：检测龋齿的方法
公开(公告)号：US08447083B2
公开(公告)日：2013-05-21
申请号：US12692787
申请日：2010-01-25
申请人： Victor C. Wong , Rongguang Liang
发明人： Victor C. Wong , Rongguang Liang
IPC分类号： G06K9/00 , A61C1/00
CPC分类号： A61B5/0088
摘要： A method for forming an enhanced image of tooth tissue for caries detection obtains fluorescence and reflectance image data from a tooth. Each pixel in the fluorescence image data is combined with its corresponding pixel in the reflectance image data by subtracting an offset to the reflectance image data value to generate an offset reflectance image data value, and then computing an enhanced image data value according to the difference between the fluorescence image data value and the offset reflectance image data value, whereby the enhanced image is formed from the resulting pixel array of enhanced image data values.
摘要翻译：用于形成用于龋齿检测的牙齿组织的增强图像的方法获得来自牙齿的荧光和反射率图像数据。荧光图像数据中的每个像素通过减去与反射率图像数据值的偏移量来生成偏移反射率图像数据值而与反射率图像数据中的对应像素组合，然后根据第二图像数据值之间的差计算增强图像数据值荧光图像数据值和偏移反射率图像数据值，从而由所得到的增强图像数据值的像素阵列形成增强图像。

6. 发明申请

US20120189182A1 AUTOMATIC TOOTH CHARTING USING DIGITAL IMAGES 有权
标题翻译：使用数字图像自动填充
公开(公告)号：US20120189182A1
公开(公告)日：2012-07-26
申请号：US13010031
申请日：2011-01-20
申请人： Rongguang Liang , Jean Marc Inglese , Edward R. Shellard , Larry A. Greenspan , Mark Woodman , Steve Mclaughlin
发明人： Rongguang Liang , Jean Marc Inglese , Edward R. Shellard , Larry A. Greenspan , Mark Woodman , Steve Mclaughlin
IPC分类号： G06K9/00
CPC分类号： G06F19/321 , A61C9/0046 , A61C9/0086 , A61C19/00 , G06F19/00 , G16H15/00
摘要： A method for generating an electronic dental chart for a patient, executed at least in part by a host processor, obtains image data for each of a number of teeth of the patient and generates a template dental chart for the patient that represents the position of each imaged tooth with a symbol according to the obtained image data. The template dental chart for each imaged tooth symbol is populated to form the electronic dental chart by associating the obtained image data to the corresponding symbol in the template dental chart for the imaged tooth, analyzing the obtained image data to identify a condition of the imaged tooth, associating at least the identified condition with the symbol for the imaged tooth, and displaying the populated electronic dental chart, wherein the displayed electronic dental chart provides a visual indication of the identified condition.
摘要翻译：用于生成至少部分由主机处理器执行的患者的电子牙图的方法获得患者的多个牙齿中的每一个的图像数据，并且生成代表患者的位置的患者的模板牙图根据获得的图像数据具有符号的成像齿。通过将获得的图像数据与成像牙齿的模板牙齿图中的相应符号相关联，填充每个成像齿符号的模板牙图，以形成电子牙图，分析所获得的图像数据以识别成像牙齿的状况至少将所识别的条件与成像的牙齿的符号相关联，以及显示所填充的电子牙科图，其中所显示的电子牙科图提供所识别的条件的视觉指示。

7. 发明申请

US20110228067A1 METHOD AND APPARATUS FOR DETECTION OF CARIES 有权
标题翻译：检测方法和装置
公开(公告)号：US20110228067A1
公开(公告)日：2011-09-22
申请号：US13117759
申请日：2011-05-27
申请人： Victor C. Wong , Rongguang Liang , Donna K. Rankin-Parobek
发明人： Victor C. Wong , Rongguang Liang , Donna K. Rankin-Parobek
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. Specular reflection of incident light from the tooth tissue is reduced. 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。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。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。

8. 发明授权

US07974453B2 Method and apparatus for detection of caries 有权
标题翻译：用于检测龋齿的方法和装置
公开(公告)号：US07974453B2
公开(公告)日：2011-07-05
申请号：US12541329
申请日：2009-08-14
申请人： Victor C. Wong , Rongguang Liang , Donna K. Rankin-Parobek
发明人： Victor C. Wong , Rongguang Liang , Donna K. Rankin-Parobek
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. 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。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）。

9. 发明授权

US07577284B2 Optical detection of dental caries 有权
标题翻译：龋齿的光学检测
公开(公告)号：US07577284B2
公开(公告)日：2009-08-18
申请号：US11408360
申请日：2006-04-21
申请人： Victor C. Wong , Rongguang Liang , Michael A. Marcus , Paul O. McLaughlin , David L. Patton
发明人： Victor C. Wong , Rongguang Liang , Michael A. Marcus , Paul O. McLaughlin , David L. Patton
IPC分类号： G06K9/00
CPC分类号： A61B5/0088
摘要： A method for caries detection uses an image capture device (30, 32) to obtain fluorescence image data from the tooth (20) by illuminating the tooth to excite fluorescent emission. A first enhanced image of the tooth is then obtained by illuminating the tooth at a first incident angle, obtaining a back-scattered reflectance image data from the tooth tissue, and combining the back-scattered reflectance image data with the fluorescence image data. A second enhanced image of the tooth is then obtained by illuminating the tooth at a second incident angle, obtaining a back-scattered reflectance image data from the tooth tissue, and combining the back-scattered reflectance image data with the fluorescence image data. The first and second enhanced images are then analyzed to select and display the best-contrast image. This method provides high contrast images for carious regions (58) on all tooth surfaces.
摘要翻译：用于龋齿检测的方法使用图像捕获装置（30,32）通过照亮牙齿来激发荧光发射来从牙齿（20）获得荧光图像数据。然后通过以第一入射角照射牙齿获得牙齿的第一增强图像，从牙齿组织获得反向散射反射图像数据，并将后向散射反射图像数据与荧光图像数据组合。然后通过以第二入射角照射牙齿获得牙齿的第二增强图像，从牙齿组织获得反向散射反射图像数据，并将后向散射反射图像数据与荧光图像数据组合。然后分析第一和第二增强图像以选择和显示最佳对比度图像。该方法为所有牙齿表面上的龋齿区域（58）提供高对比度图像。

10. 发明授权

US07360896B2 Fundus camera for wide field of view and small pupil 失效
标题翻译：眼底相机用于广视野和小瞳孔
公开(公告)号：US07360896B2
公开(公告)日：2008-04-22
申请号：US11247100
申请日：2005-10-11
申请人： Rongguang Liang , Jeffery R. Hawver
发明人： Rongguang Liang , Jeffery R. Hawver
IPC分类号： A61B3/14 , A61B3/00
CPC分类号： A61B3/156
摘要： A fundus camera (10) obtains a retinal image using a light source (62), a ring aperture (58) conjugate to the cornea, and a first aperture (54) conjugate to the iris. An apertured mirror (52) redirects the ring illumination toward the eye. An objective lens (50) between the apertured mirror (52) and the eye has an entrance pupil between the iris and the cornea of the eye. The objective lens (50) directs the ring illumination into the pupil of the eye and directs a reflected image-bearing light from the retina through the apertured mirror (52). A second aperture (64), conjugate to a plane between the cornea and the iris of the eye, forms an aperture stop for the reflected image-bearing light. A third aperture (68) is conjugate to the cornea for blocking light reflected. A sensor (70) provides an image of the retina.
摘要翻译：眼底照相机（10）使用光源（62），与角膜共轭的环形孔（58）和与虹膜共轭的第一孔（54））获得视网膜图像。多孔镜（52）将环形照明重定向到眼睛。多孔镜（52）和眼睛之间的物镜（50）在虹膜和眼睛的角膜之间具有入射光瞳。物镜（50）将环形照明引导到眼睛的瞳孔中并且引导来自视网膜的反射的图像承载光通过有孔镜（52）。与角膜和眼睛的虹膜之间的平面共轭的第二孔（64）形成用于反射的承载光的孔径光阑。第三孔径（68）与角膜共轭以阻挡反射的光。传感器（70）提供视网膜的图像。

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