公开(公告)号：US20120148986A1

公开(公告)日：2012-06-14

申请号：US12965945

申请日：2010-12-13

申请人： Jiayong Yan ,  Wei Wang ,  Liangliang Pan ,  Victor C. Wong

发明人： Jiayong Yan ,  Wei Wang ,  Liangliang Pan ,  Victor C. Wong

IPC分类号： A61B6/14

CPC分类号： A61B5/0088 ,  G06T5/002 ,  G06T7/11 ,  G06T2207/10024 ,  G06T2207/20016 ,  G06T2207/20036 ,  G06T2207/30036

摘要： A method for identification of caries, executed at least in part on data processing hardware, obtains an original digital tooth image that has a plurality of color channels and generates an adjusted image by adjusting intensity values of the original digital tooth image to a range between a minimum value and a maximum value, wherein the adjusted image has at least a green channel image Iwgreen, a red channel image Iwred, and a blue channel image Iwblue. One or more tooth regions are segmented from gum and background regions within the adjusted image according to a relationship between two or more of the images Iwgreen, Iwred, and Iwblue to each other. One or more caries lesions is identified according to pixel intensity values from within the one or more segmented tooth regions, and the one or more tooth regions and the displayed and identified caries regions are highlighted.

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，获得具有多个颜色通道的原始数字牙齿图像，并通过将原始数字牙齿图像的强度值调整到一个 最小值和最大值，其中调整后的图像至少具有绿色通道图像Iwgreen，红色通道图像Iwred和蓝色通道图像Iwblue。 根据两个或多个图像Iwgreen，Iwred和Iwblue之间的关系，调整后的图像中的一个或多个齿区域从胶和背景区域分割。 根据来自一个或多个分段齿区域内的像素强度值来识别一个或多个龋齿病变，并且突出显示和识别的龋齿区域。

公开(公告)号：US20110085714A1

公开(公告)日：2011-04-14

申请号：US12578806

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

IPC分类号： G06K9/00

CPC分类号： G06T7/0081 ,  G06T7/11 ,  G06T7/155 ,  G06T7/174 ,  G06T2207/10064 ,  G06T2207/20152 ,  G06T2207/20221 ,  G06T2207/30036

摘要： A method for extracting a carious lesion area from sound regions of a tooth. In one embodiment, the method includes generating a digital image of the tooth; identifying tooth regions; extracting a suspicious lesion area by using a marker-controlled watershed algorithm or by using a morphological bottom-hat based method along with a multi-resolution surface reconstruction method; and removing false positives. In another embodiment, the method includes generating a digital image of the tooth comprising obtaining a fluorescence image of the tooth, obtaining a reflectance image of the tooth, and combining image data for the fluorescence and reflectance images; identifying tooth regions; extracting suspicious lesion areas; and removing false positives.

摘要翻译： 一种用于从牙齿的声音区域提取龋齿区域的方法。 在一个实施例中，该方法包括产生牙齿的数字图像; 识别牙齿区域; 通过使用标记控制的分水岭算法或通过使用形态学基于帽子的方法以及多分辨率表面重建方法来提取可疑病变区域; 并消除假阳性。 在另一个实施例中，该方法包括生成牙齿的数字图像，包括获得牙齿的荧光图像，获得牙齿的反射图像，以及组合用于荧光和反射图像的图像数据; 识别牙齿区域; 提取可疑病变区; 并消除假阳性。

公开(公告)号：US20110085713A1

公开(公告)日：2011-04-14

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

IPC分类号： G06K9/00

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。

公开(公告)号：US20100322490A1

公开(公告)日：2010-12-23

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。

公开(公告)号：US08908936B2

公开(公告)日：2014-12-09

申请号：US12578806

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

IPC分类号： G06T7/00

CPC分类号： G06T7/0081 ,  G06T7/11 ,  G06T7/155 ,  G06T7/174 ,  G06T2207/10064 ,  G06T2207/20152 ,  G06T2207/20221 ,  G06T2207/30036

摘要： A method for extracting a carious lesion area from sound regions of a tooth. In one embodiment, the method includes generating a digital image of the tooth; identifying tooth regions; extracting a suspicious lesion area by using a marker-controlled watershed algorithm or by using a morphological bottom-hat based method along with a multi-resolution surface reconstruction method; and removing false positives. In another embodiment, the method includes generating a digital image of the tooth comprising obtaining a fluorescence image of the tooth, obtaining a reflectance image of the tooth, and combining image data for the fluorescence and reflectance images; identifying tooth regions; extracting suspicious lesion areas; and removing false positives.

摘要翻译： 一种用于从牙齿的声音区域提取龋齿区域的方法。 在一个实施例中，该方法包括产生牙齿的数字图像; 识别牙齿区域; 通过使用标记控制的分水岭算法或通过使用形态学基于帽子的方法以及多分辨率表面重建方法来提取可疑病变区域; 并消除假阳性。 在另一个实施例中，该方法包括生成牙齿的数字图像，包括获得牙齿的荧光图像，获得牙齿的反射图像，以及组合用于荧光和反射图像的图像数据; 识别牙齿区域; 提取可疑病变区; 并消除假阳性。

公开(公告)号：US08311302B2

公开(公告)日：2012-11-13

申请号：US12965945

申请日：2010-12-13

申请人： Jiayong Yan ,  Wei Wang ,  Liangliang Pan ,  Victor C. Wong

发明人： Jiayong Yan ,  Wei Wang ,  Liangliang Pan ,  Victor C. Wong

IPC分类号： G06K9/00

CPC分类号： A61B5/0088 ,  G06T5/002 ,  G06T7/11 ,  G06T2207/10024 ,  G06T2207/20016 ,  G06T2207/20036 ,  G06T2207/30036

摘要： A method for identification of caries, executed at least in part on data processing hardware, obtains an original digital tooth image that has a plurality of color channels and generates an adjusted image by adjusting intensity values of the original digital tooth image to a range between a minimum value and a maximum value, wherein the adjusted image has at least a green channel image Iwgreen, a red channel image Iwred, and a blue channel image Iwblue. One or more tooth regions are segmented from gum and background regions within the adjusted image according to a relationship between two or more of the images Iwgreen, Iwred, and Iwblue to each other. One or more caries lesions is identified according to pixel intensity values from within the one or more segmented tooth regions, and the one or more tooth regions and the displayed and identified caries regions are highlighted.

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，获得具有多个颜色通道的原始数字牙齿图像，并通过将原始数字牙齿图像的强度值调整到一个 最小值和最大值，其中调整后的图像至少具有绿色通道图像Iwgreen，红色通道图像Iwred和蓝色通道图像Iwblue。 根据两个或多个图像Iwgreen，Iwred和Iwblue之间的关系，调整后的图像中的一个或多个齿区域从胶和背景区域分割。 根据来自一个或多个分段齿区域内的像素强度值来识别一个或多个龋齿病变，并且突出显示和识别的龋齿区域。

公开(公告)号：US09235901B2

公开(公告)日：2016-01-12

申请号：US12578826

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

IPC分类号： G06T7/00

CPC分类号： G06T7/0081 ,  G06T7/11 ,  G06T7/155 ,  G06T2207/10064 ,  G06T2207/20152 ,  G06T2207/30036

摘要： A method for locating one or more interproximal tooth regions in a digital tooth image. The method can be executed at least in part on data processing hardware. The method includes generating the digital tooth image from a fluorescence image of one or more teeth and a reflectance image of the one or more teeth, so as to combine image data from the fluorescence and reflectance images. The digital tooth image has intensity values for pixels corresponding to the one or more teeth and background. The method identifies one or more tooth regions by processing the digital tooth image and locates the one or more interproximal tooth regions according to the one or more identified tooth regions.

摘要翻译： 一种用于定位数字牙齿图像中的一个或多个邻间牙齿区域的方法。 该方法至少部分地可以在数据处理硬件上执行。 该方法包括从一个或多个齿的荧光图像和一个或多个齿的反射图像生成数字牙齿图像，以便组合来自荧光和反射图像的图像数据。 数字牙齿图像具有对应于一个或多个牙齿和背景的像素的强度值。 该方法通过处理数字牙齿图像来识别一个或多个牙齿区域，并且根据一个或多个识别的牙齿区域定位一个或多个邻间牙齿区域。

公开(公告)号：US20110085715A1

公开(公告)日：2011-04-14

申请号：US12578826

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

IPC分类号： G06K9/00

CPC分类号： G06T7/0081 ,  G06T7/11 ,  G06T7/155 ,  G06T2207/10064 ,  G06T2207/20152 ,  G06T2207/30036

摘要： A method for locating one or more interproximal tooth regions in a digital tooth image. The method can be executed at least in part on data processing hardware. The method includes generating the digital tooth image from a fluorescence image of one or more teeth and a reflectance image of the one or more teeth, so as to combine image data from the fluorescence and reflectance images. The digital tooth image has intensity values for pixels corresponding to the one or more teeth and background. The method identifies one or more tooth regions by processing the digital tooth image and locates the one or more interproximal tooth regions according to the one or more identified tooth regions.

摘要翻译： 一种用于定位数字牙齿图像中的一个或多个邻间牙齿区域的方法。 该方法至少部分地可以在数据处理硬件上执行。 该方法包括从一个或多个齿的荧光图像和一个或多个齿的反射图像生成数字牙齿图像，以便组合来自荧光和反射图像的图像数据。 数字牙齿图像具有对应于一个或多个牙齿和背景的像素的强度值。 该方法通过处理数字牙齿图像来识别一个或多个牙齿区域，并且根据一个或多个识别的牙齿区域定位一个或多个邻间牙齿区域。

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。

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

IPC分类号： G06K9/00 ,  G06K9/34 ,  G06K9/20 ,  G06K9/36 ,  A61C1/00 ,  A62B1/04

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。