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    APPARATUS AND METHOD OF TEXTURE MAPPING FOR DENTAL 3D SCANNER
    1.
    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.

    Video-based auto-capture for dental surface imaging apparatus
    2.
    发明授权
    Video-based auto-capture for dental surface imaging apparatus 有权

    公开(公告)号：US09675428B2

    公开(公告)日：2017-06-13

    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 ,  A61B5/00 ,  G01B11/25

    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.

    INTRA-ORAL IMAGING USING OPERATOR INTERFACE WITH GESTURE RECOGNITION
    5.
    发明申请
    INTRA-ORAL IMAGING USING OPERATOR INTERFACE WITH GESTURE RECOGNITION 审中-公开

    公开(公告)号：US20170300119A1

    公开(公告)日：2017-10-19

    申请号：US15315002

    申请日：2014-06-25

    Applicant: Carestream Health, Inc.

    Inventor： Yingqian Wu ,  Wei Wang ,  Guijian Wang ,  Yan Zhang

    IPC: G06F3/01 ,  A61B1/24 ,  H04N5/225 ,  H04N5/262 ,  H04N5/232 ,  A61B1/04 ,  G06F3/0482 ,  H04N5/217

    Abstract: A method for obtaining an intra-oral image, the method executed at least in part by a computer system, emits illumination from an intra-oral camera toward an object that is within the mouth of a patient, then obtains image data content of the object at an image sensor of the intra-oral camera. The image content obtained from the imaging sensor is displayed and one or more movement signals indicative of movement of the intra-oral camera along at least two of three mutually orthogonal axes is obtained. The one or more obtained movement signals are interpreted as an operator instruction corresponding to a predetermined movement pattern. At least the display of the image content is changed according to the operator instruction.

    Method for quantifying caries
    7.
    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
    8.
    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
    9.
    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
    10.
    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。

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