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1. 发明申请

US20160307323A1 METHOD FOR QUANTIFYING CARIES 有权
标题翻译：量化方法
公开(公告)号：US20160307323A1
公开(公告)日：2016-10-20
申请号：US14687965
申请日：2015-04-16
申请人： Yingqian Wu , Wei Wang , Yuan Chen , Victor C. Wong
发明人： Yingqian Wu , Wei Wang , Yuan Chen , Victor C. Wong
IPC分类号： G06T7/00 , G06T11/00 , G06T11/60
CPC分类号： G06T7/62 , G06T7/0012 , G06T7/33 , G06T11/001 , G06T2207/10016 , G06T2207/10024 , G06T2207/10064 , G06T2207/20216 , G06T2207/30036 , G06T2207/30096
摘要： Method and/or apparatus embodiments for automatically identifying caries, executed at least in part on data processing hardware, can acquire, multiple reflectance images of a tooth, wherein each reflectance image includes at least red, green, and blue intensity values for a region of pixels corresponding to the tooth. Each reflectance image in the plurality of reflectance images is processed by (i) defining a tooth region within the reflectance image; and (ii) identifying caries within the defined tooth region for each reflectance image. The reflectance images are registered and the registered processed images are combined to form a result image that shows the identified caries. In one embodiment, multiple reflectance images of a tooth are taken from substantially the same camera position.
摘要翻译：用于自动识别至少部分地在数据处理硬件上执行的龋齿的方法和/或装置实施例可以获取牙齿的多个反射图像，其中每个反射图像至少包括红，绿和蓝强度值，对应于牙齿的像素。通过（i）在反射图像内限定齿区域来处理多个反射图像中的每个反射图像; 和（ii）针对每个反射图像识别限定的牙齿区域内的龋齿。登记反射率图像，并且结合注册的处理图像以形成显示所识别的龋齿的结果图像。在一个实施例中，从基本上相同的摄像机位置获取齿的多个反射率图像。

2. 发明授权

US09020236B2 Method for tooth surface classification 有权
标题翻译：牙齿表面分类方法
公开(公告)号：US09020236B2
公开(公告)日：2015-04-28
申请号：US14002998
申请日：2012-03-19
申请人： Wei Wang , Liwei Song , Yingqian Wu , Victor C. Wong , Jiayong Yan
发明人： Wei Wang , Liwei Song , Yingqian Wu , Victor C. Wong , Jiayong Yan
IPC分类号： G06K9/00 , G06T7/00 , A61B5/00 , A61B6/14 , A61B6/00 , A61C9/00 , G01J3/50
CPC分类号： G06T7/0012 , A61B5/0071 , A61B5/0088 , A61B5/4547 , A61B5/7267 , A61B6/14 , A61B6/5217 , A61C9/0046 , G01J3/508 , G06K2209/05 , G06T2207/10064 , G06T2207/20081 , G06T2207/30036
摘要： A method for intraoral imaging obtains a digital image of one or more teeth and detects first and second boundaries. At each of the first and second boundaries, there is calculated a boundary ratio of mean gray-scale values for the tooth area on one side of the boundary to mean gray-scale values for background areas on the other side. The calculated boundary ratios are stored. A third ratio of the mean gray-scale values for the tooth area near the first boundary to the mean gray-scale values for the tooth area near the second boundary is calculated and stored. A vector is formed and stored that contains at least the calculated boundary ratios and the third ratio. The tooth surface is classified as either smooth or occlusal according to the stored vector. The image data is processed according to the classification and processing results are reported.
摘要翻译：用于口内成像的方法获得一个或多个牙齿的数字图像并检测第一和第二边界。在第一和第二边界的每个边界处，计算边界一侧的齿面积的平均灰度值与另一侧背景区域的灰度值的边界比。存储计算的边界比。计算并存储第一边界附近的牙齿区域的平均灰度值与第二边界附近的牙齿区域的平均灰度值的第三比率。形成并存储至少包含计算出的边界比和第三比例的矢量。根据存储的载体，牙齿表面被分类为光滑的或咬合的。根据分类处理图像数据，报告处理结果。

3. 发明授权

US08908936B2 Method for extracting a carious lesion area 有权
标题翻译：提取龋病区域的方法
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。

4. 发明授权

US08311302B2 Method for identification of dental caries in polychromatic images 有权
标题翻译：多色图像中龋齿鉴别方法
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。

5. 发明授权

US08768016B2 Method for quantifying caries 有权
标题翻译：龋齿定量方法
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。

6. 发明授权

US08687859B2 Method for identifying a tooth region 有权
标题翻译：识别牙齿区域的方法
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。

7. 发明授权

US08520922B2 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：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 ）。

8. 发明申请

US20130038710A1 IDENTIFICATION OF DENTAL CARIES IN LIVE VIDEO IMAGES 有权
标题翻译：在现实视频图像中识别牙齿
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。

9. 发明申请

US20110275034A1 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：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 ）。

10. 发明授权

US09486141B2 Identification of dental caries in live video images 有权
标题翻译：在实时视频图像中识别龋齿
公开(公告)号：US09486141B2
公开(公告)日：2016-11-08
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： A61B5/00 , G06T3/00 , G06T7/00
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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