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公开(公告)号：US10219703B2
公开(公告)日：2019-03-05
申请号：US15021279
申请日：2013-09-30
Applicant: Carestream Health, Inc.
Inventor： Yingqian Wu , Wei Wang , Guijian Wang , Victor C. Wong
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.
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公开(公告)号：US20170319057A1
公开(公告)日：2017-11-09
申请号：US15528773
申请日：2014-12-17
Applicant: Carestream Health, Inc.
Inventor： Jean-Marc Inglese , Wei Wang , Victor C. Wong , Guijian Wang , Larry A. Greenspan , Mark Woodman
CPC classification number: A61B1/24 , A61B1/00009 , A61B1/043 , A61B1/0638 , A61B5/0071 , A61B5/0088 , A61B5/7425 , A61C9/0046 , A61C9/0053 , A61C9/006
Abstract: Method and apparatus embodiments can generate a volume fluorescence image of a tooth. Method and apparatus embodiments can project structured light patterns onto a tooth and generate a contour (volume) image of the tooth surface from acquired corresponding structured light projection images; then acquire one or more fluorescence images of the tooth generated under blue-UV illumination. A composite image that shows fluorescence image content mapped to the generated contour image can be transmitted, stored, modified and/or displayed.
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公开(公告)号：US20140050376A1
公开(公告)日：2014-02-20
申请号：US14064285
申请日：2013-10-28
Applicant: Carestream Health, Inc.
Inventor： Jiayong Yan , Wei Wang , Liangliang Pan , Victor C. Wong
IPC: G06T7/00
CPC classification number: G06T7/0081 , G06T7/11 , G06T7/136 , G06T7/174 , G06T2207/10064 , G06T2207/30036
Abstract: 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.
Abstract translation: 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。
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公开(公告)号：US20180263482A1
公开(公告)日：2018-09-20
申请号：US15460760
申请日：2017-03-16
Applicant: Carestream Health, Inc.
Inventor： Yiyi Guan , Victor C. Wong , Chuanmao Fan
IPC: A61B1/24 , H04N13/02 , F21V14/04 , F21V13/06 , F21V5/04 , G02B27/09 , A61B1/00 , A61B1/055 , A61B1/06
CPC classification number: A61B1/24 , A61B1/00006 , A61B1/00172 , A61B1/045 , A61B1/055 , A61B1/063 , F21V5/043 , F21V13/06 , F21V14/04 , F21Y2115/30 , G02B26/105 , G02B27/0927 , G02B27/0966 , G02B27/30 , H04N13/254 , H04N13/296 , H04N2213/001
Abstract: An apparatus for intraoral imaging has an intraoral camera that defines a field of view with a first dimension and a second dimension orthogonal to the first dimension. A projector has a laser diode energizable to emit a light beam; a collimator in the path of the emitted light beam; first beam-shaping optics disposed to shape the collimated light beam in the second dimension to form a linear light pattern; focusing optics disposed to focus the shaped collimated beam at a focal plane; and a scanner that is disposed substantially at the focal plane and that is energizable to scan the formed linear light pattern along the second dimension to successive positions of the field of view. A control logic processor coordinates energizing the laser diode and scanner with image capture by the intraoral camera.
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公开(公告)号：US20160270716A1
公开(公告)日：2016-09-22
申请号：US15029661
申请日：2014-11-05
Applicant: CARESTREAM HEALTH, INC.
Inventor： Yiyi Guan , Victor C. Wong
CPC classification number: A61B5/4552 , A61B1/00009 , A61B1/00066 , A61B1/04 , A61B1/0684 , A61B1/24 , A61B5/0088 , A61B5/1459 , A61B5/7264 , A61B5/7282
Abstract: Intra-oral imaging apparatus and/or method embodiments can provide digital dental reflectance images used to identify selected areas of interest (AOI) within a dental region of interest (ROD having selected image characteristics for both hemo-globin's total concentration and oxygenation level. In one embodiment, reflectance images can determine relative total hemoglobin using at least a wavelength band that includes an isobestic wavelength for absorption coefficients of oxyhemoglobin (HbO2) and deoxyhemoglobin (Hb). In one embodiment, intra-oral imaging apparatus and/or method embodiments can use reflectance images of a dental region at least at three wavelengths; a control logic processor for processing the reflectance images to determine relative tHb and its relative oxygenation level and/or identify disease areas having periodontal tissues condition; and a display for displaying periodontal tissues or a visual indication of the areas having selected imaging characteristic determined by the reflectance images.
Abstract translation: 口腔内成像设备和/或方法实施例可以提供用于识别感兴趣的牙齿区域内的所选感兴趣区域（AOI）的数字牙科反射图像（具有针对血球珠蛋白的总浓度和氧合水平的所选图像特征的ROD） 一个实施例，反射图像可以使用至少一个包括氧合血红蛋白（HbO2）和脱氧血红蛋白（Hb）的吸收系数的异常波长的波长带来确定相对总血红蛋白。在一个实施例中，口内成像装置和/或方法实施例可以 使用至少三个波长的牙科区域的反射图像;控制逻辑处理器，用于处理反射图像以确定相对tHb及其相对氧合水平和/或识别具有牙周组织条件的疾病区域;以及用于显示牙周组织或 确定了所选择的成像特征的区域的视觉指示 通过反射率图像。
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Patent Agency Ranking
6.发明申请公开(公告)号：US20150185334A1
公开(公告)日：2015-07-02
申请号：US14423441
申请日：2013-09-06
Applicant: Carestream Health, Inc.
Inventor： Timothy J. Tredwell , Victor C. Wong
CPC classification number: G01T1/20 , A61B6/12 , A61B6/4233 , A61B6/542 , G01T1/161
Abstract: A wireless X-ray detector for a digital radiography system with remote detection of impinging radiation from the system X-ray source onto a sensor panel having amorphous or crystalline silicon photodiodes or metal insulated semiconductor (MIS) sensors. Certain exemplary embodiments described herein can provide a digital radiography detector including a housing having first and second spaced members and side walls defining a cavity; a radiographic image detector assembly mounted within the cavity for converting a radiographic image to an electronic radiographic image, wherein the detector assembly includes a scintillator screen and a detector imaging array; and a light guiding element positioned proximate the radiographic image detector assembly to detect a start of exposure, a termination of the exposure, dose for the exposure or rate of dose for the exposure using light generated by the scintillator screen.
Abstract translation: 一种用于数字射线照相系统的无线X射线检测器，其具有从系统X射线源到具有非晶或晶体硅光电二极管或金属绝缘半导体（MIS）传感器的传感器面板的入射辐射的远程检测。 本文所描述的某些示例性实施例可以提供数字放射线检测器，其包括具有限定腔的第一和第二间隔构件和侧壁的壳体; 安装在腔内的放射线照相图像检测器组件，用于将射线照相图像转换成电子放射照相图像，其中检测器组件包括闪烁体屏幕和检测器成像阵列; 以及位于放射线照相图像检测器组件附近的导光元件，以使用由闪烁体屏幕产生的光来检测曝光的开始，曝光的终止，曝光的剂量或曝光的剂量。
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公开(公告)号：US09870613B2
公开(公告)日：2018-01-16
申请号：US14933294
申请日：2015-11-05
Applicant: Carestream Health, Inc.
Inventor： Yingqian Wu , Wei Wang , Victor C. Wong , Yan Zhang
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.
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公开(公告)号：US09773306B2
公开(公告)日：2017-09-26
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
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.
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公开(公告)号：US09247241B2
公开(公告)日：2016-01-26
申请号：US13686081
申请日：2012-11-27
Applicant: Carestream Health, Inc.
Inventor： Victor C. Wong , Rongguang Liang , Donna K. Rankin-Parobek
CPC classification number: H04N17/002 , A61B5/0088
Abstract: 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. 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.
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公开(公告)号：US20150245770A1
公开(公告)日：2015-09-03
申请号：US14708404
申请日：2015-05-11
Applicant: Carestream Health, Inc.
Inventor： Rongguang Liang , Victor C. Wong , Michael A. Marcus , Mark E. Bridges , Paul O. McLaughlin , Peter D. Burns , David L. Patton
CPC classification number: 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
Abstract: 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.
Abstract translation: 一种用于获得具有至少一个光源的装置，其具有提供具有第一光谱范围的入射光的光源，以从所述牙齿获得反射图像，以及用于从所述牙齿激发荧光图像的第二光谱范围。 来自两个源的入射光的路径中的偏振分束器将具有第一偏振态的光朝向齿引导，并将来自具有第二偏振态的齿沿着返回路径引导到传感器，其中第二偏振状态与 第一极化状态。 返回路径中的第一透镜将来自牙齿的图像承载光引导到传感器，并且从具有第二偏振状态的光的部分获得图像数据。 返回路径中的长通滤波器衰减第二光谱范围内的光。
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