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    METHOD FOR QUANTIFYING CARIES
    11.
    发明申请
    METHOD FOR QUANTIFYING CARIES 有权
    量化方法

    公开(公告)号：US20140185892A1

    公开(公告)日：2014-07-03

    申请号：US14197637

    申请日：2014-03-05

    Applicant: Carestream Health, Inc.

    Inventor： Liangliang Pan ,  Jiayong Yan ,  Wei Wang ,  Lixing Shi ,  Victor C. Wong

    IPC: G06T7/00

    CPC classification number: G06T7/0012 ,  A61B5/0088 ,  G06T7/00 ,  G06T2207/10024 ,  G06T2207/10064 ,  G06T2207/20212 ,  G06T2207/30036

    Abstract: 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.

    Abstract translation: 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。

    Method for quantifying caries
    13.
    发明授权
    Method for quantifying caries 有权
    龋齿定量方法

    公开(公告)号：US09547903B2

    公开(公告)日：2017-01-17

    申请号：US14687965

    申请日：2015-04-16

    Applicant: CARESTREAM HEALTH, INC.

    Inventor： Yingqian Wu ,  Wei Wang ,  Yuan Chen ,  Victor C. Wong

    IPC: G06T7/00 ,  G06T11/60 ,  G06T11/00

    CPC classification number: G06T7/62 ,  G06T7/0012 ,  G06T7/33 ,  G06T11/001 ,  G06T2207/10016 ,  G06T2207/10024 ,  G06T2207/10064 ,  G06T2207/20216 ,  G06T2207/30036 ,  G06T2207/30096

    Abstract: 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.

    Abstract translation: 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色，绿色和蓝色强度值， 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，并且结合注册的经处理的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。

    METHOD AND SYSTEM FOR INTRA-ORAL IMAGING USING HDR IMAGINE AND HIGHLIGHT REMOVAL
    14.
    发明申请
    METHOD AND SYSTEM FOR INTRA-ORAL IMAGING USING HDR IMAGINE AND HIGHLIGHT REMOVAL 审中-公开
    使用HDR图像和高亮度去除进行内窥镜成像的方法和系统

    公开(公告)号：US20160220118A1

    公开(公告)日：2016-08-04

    申请号：US15021279

    申请日：2013-09-30

    Applicant: CARESTREAM HEALTH, INC.

    Inventor： Yingqian Wu ,  Wei Wang ,  Guijian Wang ,  Victor C. Wong

    IPC: A61B5/00

    CPC classification number: A61B5/0088 ,  A61B1/24 ,  A61B5/7225 ,  A61C9/0053 ,  G06T5/008 ,  G06T5/50 ,  G06T2207/20208 ,  G06T2207/30036 ,  H04N5/2355

    Abstract: A method and system for intra-oral imaging using High Dynamic Range (HDR) and highlight removal is presented. The method comprising generating a first High HDR irradiation map of teeth with multiple images captured with different exposures for same intra-oral scene; and removing highlight caused by a specular reflection in a detail-reserved way from the first HDR irradiation map so as to obtain a second HDR irradiation map in which the specular reflection is at least partly suppressed.

    Abstract translation: 提出了一种使用高动态范围（HDR）和突出删除进行口内成像的方法和系统。 该方法包括：生成具有用于相同口腔内场景的不同曝光捕获的多个图像的牙齿的第一高HDR照射图; 以及从第一HDR照射图以细节预留的方式去除由镜面反射引起的高光，以获得其中至少部分地抑制镜面反射的第二HDR照射图。

    DETECTION OF TOOTH CONDITION USING REFLECTANCE IMAGES WITH RED AND GREEN FLUORESCENCE
    15.
    发明申请
    DETECTION OF TOOTH CONDITION USING REFLECTANCE IMAGES WITH RED AND GREEN FLUORESCENCE 有权
    使用红色和绿色荧光的反射图像检测牙齿条件

    公开(公告)号：US20160125601A1

    公开(公告)日：2016-05-05

    申请号：US14933294

    申请日：2015-11-05

    Applicant: Carestream Health, Inc.

    Inventor： Yingqian Wu ,  Wei Wang ,  Victor C. Wong ,  Yan Zhang

    IPC: G06T7/00 ,  H04N5/225 ,  G06K9/62 ,  G06K9/48 ,  G06K9/66

    CPC classification number: G06T7/0012 ,  G06T2207/10024 ,  G06T2207/10064 ,  G06T2207/10152 ,  G06T2207/30036 ,  H04N5/2256 ,  H04N2005/2255

    Abstract: A system and method for imaging a tooth. The method illuminates the tooth and acquires reflectance image data and illuminates the tooth and acquires fluorescence image data from the tooth. The acquired reflectance and fluorescence image data for the tooth are aligned to form aligned reflectance and fluorescence image data. For one or more pixels of the aligned reflectance and fluorescence image data, at least one feature vector is generated, having data derived from one or both of the aligned reflectance and fluorescence image data. The aligned reflectance and fluorescence image data and the at least one feature vector are processed using one or more trained classifiers obtained from a memory that is in signal communication with the computer. Processing results indicative of tooth condition are displayed.

    Abstract translation: 一种牙齿成像系统和方法。 该方法照亮牙齿并获取反射图像数据并照亮牙齿并从牙齿获取荧光图像数据。 将获得的用于牙齿的反射率和荧光图像数据对准以形成对准的反射率和荧光图像数据。 对于对准的反射和荧光图像数据的一个或多个像素，产生至少一个特征向量，其具有从对准的反射和荧光图像数据中的一个或两个导出的数据。 使用从与计算机进行信号通信的存储器获得的一个或多个训练分类器来处理对准的反射和荧光图像数据和至少一个特征向量。 显示表示牙齿状况的处理结果。

    VIDEO-BASED AUTO-CAPTURE FOR DENTAL SURFACE IMAGING APPARATUS
    17.
    发明申请
    VIDEO-BASED AUTO-CAPTURE FOR DENTAL SURFACE IMAGING APPARATUS 有权
    用于牙科表面成像设备的基于视频的自动捕获

    公开(公告)号：US20150017598A1

    公开(公告)日：2015-01-15

    申请号：US14326568

    申请日：2014-07-09

    Applicant: Carestream Health, Inc.

    Inventor： Yingqian Wu ,  Yufeng Mo ,  Qinran Chen ,  Victor C. Wong

    IPC: A61C9/00

    CPC classification number: A61C9/006 ,  A61B5/004 ,  A61B5/0088 ,  A61B5/4547 ,  A61B2576/00 ,  G01B11/2518

    Abstract: In an exemplary method for obtaining a contour image of a tooth, which can be executed at least in part by a computer, movement of an intra-oral camera can be detected by acquiring a first video image frame that includes the tooth and processing the first video image frame to detect one or more edges of the tooth in the first video image frame and acquiring a second video image frame that includes the tooth and processing the second video image frame to detect the one or more edges of the tooth in the second video image frame. The method can compare corresponding edge locations between the first and second processed video image frames and projects a fringe pattern illumination onto the tooth from the camera, capturing and storing one or more still images of the fringe pattern according to the detected camera movement.

    Abstract translation: 在用于获得可以由计算机至少部分地执行的牙齿轮廓图像的示例性方法中，可以通过获取包括牙齿的第一视频图像帧并且处理第一视频图像来检测口内相机的移动 视频图像帧，以检测第一视频图像帧中的一个或多个边缘，并获取包括牙齿的第二视频图像帧，并处理第二视频图像帧以检测第二视频中的牙齿的一个或多个边缘 图像帧。 该方法可以比较第一和第二处理的视频图像帧之间的对应边缘位置，并将相片图案照明从照相机投射到牙齿上，根据检测到的相机移动捕获和存储边缘图案的一个或多个静止图像。

    DENTAL SHADE MAPPING
    18.
    发明申请
    DENTAL SHADE MAPPING 有权
    牙齿阴影映射

    公开(公告)号：US20140030670A1

    公开(公告)日：2014-01-30

    申请号：US14040776

    申请日：2013-09-30

    Applicant: Carestream Health, Inc.

    Inventor： Victor C. Wong ,  James R. Milch ,  Lawrence A. Ray ,  Peter D. Burns

    IPC: A61B1/24 ,  A61B1/04 ,  A61B1/06 ,  A61B1/00

    CPC classification number: A61B1/24 ,  A61B1/00006 ,  A61B1/00009 ,  A61B1/04 ,  A61B1/0638 ,  G01J3/46 ,  G01J3/462 ,  G01J3/465 ,  G01J3/50 ,  G01J3/501 ,  G01J3/508 ,  G01J3/524

    Abstract: A method and apparatus for generating a color mapping for a dental object. The method includes generating a transformation matrix according to a set of spectral reflectance data for a statistically valid sampling of teeth. Illumination is directed toward the dental object over at least a first, a second, and a third wavelength band, one wavelength band at a time. For each of a plurality of pixels in an imaging array, an image data value is obtained, corresponding to each of the at least first, second, and third wavelength bands. The transformation matrix is applied to form the color mapping by generating a set of visual color values for each of the plurality of pixels according to the obtained image data values and according to image data values obtained from a reference object at the at least first, second, and third wavelength bands. The color mapping can be stored in an electronic memory.

    Abstract translation: 一种用于产生牙科物体的颜色映射的方法和装置。 该方法包括根据用于统计学上有效的牙齿取样的一组光谱反射率数据产生变换矩阵。 通过至少第一，第二和第三波长带，一次一个波长带照射朝向牙科物体。 对于成像阵列中的多个像素中的每一个，获得对应于至少第一，第二和第三波长带中的每一个的图像数据值。 应用变换矩阵以通过根据所获得的图像数据值生成一组视觉颜色值以形成颜色映射，并且根据从至少第一，第二的参考对象获得的图像数据值 和第三波长带。 颜色映射可以存储在电子存储器中。

    APPARATUS AND METHOD OF TEXTURE MAPPING FOR DENTAL 3D SCANNER
    20.
    发明申请
    APPARATUS AND METHOD OF TEXTURE MAPPING FOR DENTAL 3D SCANNER 审中-公开

    公开(公告)号：US20180025529A1

    公开(公告)日：2018-01-25

    申请号：US15546396

    申请日：2015-09-11

    Applicant: Carestream Health, Inc.

    Inventor： Yingqian Wu ,  Victor C. Wong ,  Qinran Chen ,  Zhaohua Liu

    IPC: G06T15/04 ,  A61B5/00 ,  A61B5/107 ,  G06T17/20

    CPC classification number: G06T15/04 ,  A61B5/0088 ,  A61B5/1077 ,  G01J3/501 ,  G01J3/508 ,  G06T2210/41

    Abstract: A method for color texture imaging of teeth with a monochrome sensor array obtains a 3-D mesh representing a surface contour image according to image data from views of the teeth. For each view, recording image data generates sets of at least three monochromatic shading images. Each set of the monochromatic shading images is combined to generate 2-D color shading images, corresponding to one of the views. Each polygonal surface in the mesh is assigned to one of a subset of the views. Polygonal surfaces assigned to the same view are grouped into a texture fragment. Image coordinates for the 3-D mesh surfaces in each texture fragment are determined from projection of vertices onto the view associated with the texture fragment. The 3-D mesh is rendered with texture values in the 2-D color shading images corresponding to each texture fragment to generate a color texture surface contour image.

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