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公开(公告)号：US09020228B2
公开(公告)日：2015-04-28
申请号：US14064285
申请日：2013-10-28
Applicant: Carestream Health, Inc.
Inventor： Jiayong Yan , Wei Wang , Liangliang Pan , Victor C. Wong
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：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：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
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.
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公开(公告)号：US20170000430A1
公开(公告)日：2017-01-05
申请号：US14754810
申请日：2015-06-30
Applicant: Carestream Health, Inc.
Inventor： Yanbin Lu , Qinran Chen , Guijian Wang , Wei Wang
CPC classification number: A61B6/14 , A61B5/055 , A61B5/1128 , A61B5/4542 , A61B6/032 , A61B6/5247
Abstract: An apparatus for imaging the head of a patient has a transport apparatus that orbits an x-ray source and detector about the head and acquires 2-D radiographic projection images. One or more head marker retaining elements hold markers in position relative to the skull. One or more jaw marker retaining elements hold markers in position relative to the jaw bone. At least one camera acquires a jaw motion study. A control logic processor in signal communication with the x-ray source, x-ray detector, and the camera is configured to reconstruct volume image content using the 2-D radiographic projection images acquired, to segment the jaw bone structure from the skull bone structure, to register the reconstructed volume image content, and to generate display content that shows jaw bone structure motion acquired from the set of reflectance images. A display in signal communication with the control logic processor displays the generated content.
Abstract translation: 用于对患者头部进行成像的装置具有使X射线源和检测器围绕头部轨道运送并且获取2-D放射线照相投影图像的输送装置。 一个或多个头标记保持元件将标记保持在相对于头骨的位置。 一个或多个钳口标记保持元件将标记保持在相对于颚骨的位置。 至少有一台摄像机获取颌骨运动研究。 与X射线源，X射线检测器和照相机进行信号通信的控制逻辑处理器被配置为使用所获取的2-D放射照相投影图像来重建体积图像内容，以从颅骨结构分割颌骨结构 ，以记录重建的体积图像内容，并且生成显示从该组反射图像获取的颌骨结构运动的显示内容。 与控制逻辑处理器进行信号通信的显示器显示所生成的内容。
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Patent Agency Ranking
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：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：US20170135655A1
公开(公告)日：2017-05-18
申请号：US15319762
申请日：2014-08-08
Applicant: Carestream Health, Inc.
Inventor： Wei Wang , Zhaohua Liu , Guijian Wang , Jean-Marc Inglese
IPC: A61B6/14 , G06T15/04 , G06K9/46 , A61C9/00 , A61B1/24 , A61B6/03 , A61B6/00 , A61C7/00 , G06T17/20 , G06T7/00
CPC classification number: A61B6/14 , A61B1/24 , A61B5/0035 , A61B5/0077 , A61B5/0088 , A61B5/1079 , A61B6/02 , A61B6/032 , A61B6/4085 , A61B6/4417 , A61B6/466 , A61B6/501 , A61B6/5229 , A61B6/5247 , A61B2090/364 , A61C7/002 , A61C9/0053 , G01B11/24 , G06K9/4604 , G06T7/0012 , G06T7/30 , G06T11/008 , G06T15/04 , G06T17/20 , G06T2207/10028 , G06T2207/10081 , G06T2207/10124 , G06T2207/30036
Abstract: A method for forming a 3-D facial model obtains a reconstructed radiographic image volume of a patient and extracts a soft tissue surface of the patient's face from the image volume and forms a dense point cloud of the extracted surface. Reflection images of the face are acquired using a camera, wherein each reflection image has a different corresponding camera angle with respect to the patient. Calibration data is calculated for one or more of the reflection images. A sparse point cloud corresponding to the reflection images is formed by processing the reflection images using multi-view geometry. The sparse point cloud is registered to the dense point cloud and a transformation calculated between reflection image texture data and the dense point cloud. The calculated transformation is applied for mapping texture data from the reflection images to the dense point cloud to form a texture-mapped volume image that is displayed.
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10.发明申请公开(公告)号：US20160256123A1
公开(公告)日：2016-09-08
申请号：US15047676
申请日：2016-02-19
Applicant: Carestream Health, Inc.
Inventor： Yanbin Lu , Qinran Chen , Wei Wang
CPC classification number: A61B6/461 , A61B6/032 , A61B6/08 , A61B6/14 , A61B6/4085 , A61B6/4441 , A61B6/501
Abstract: An apparatus for imaging the head of a patient has a transport apparatus that moves an x-ray source and detector in at least partial orbit about a head supporting position for acquiring 2-D radiographic projection images of the head. A light source coupled to the transport apparatus projects patterned light over at least a portion of the orbit. A monochrome camera coupled to the transport apparatus records, at angles of the orbit, monochrome reflectance images of the projected patterned light. A color camera coupled to the transport apparatus acquires, at each of one or more angles of the orbit, a color reflectance image of the head. A control logic processor energizes at least the x-ray source, the detector, the transport apparatus, the light source, and the cameras to acquire and process both radiographic and reflectance image data obtained during the at least partial orbit about the head supporting position.
Abstract translation: 用于对患者头部进行成像的装置具有输送装置，该输送装置使X射线源和检测器在围绕头部支撑位置的至少部分轨道中移动，用于获取头部的2-D放射线照相投影图像。 耦合到运输设备的光源在轨道的至少一部分上投射图案化的光。 耦合到传送装置的单色相机以轨道的角度记录投影的图案光的单色反射率图像。 耦合到传送装置的彩色照相机在轨道的一个或多个角度的每一个处获取头部的彩色反射率图像。 控制逻辑处理器至少激励X射线源，检测器，输送装置，光源和照相机，以获取并处理在关于头支撑位置的至少部分轨道期间获得的射线照相和反射图像数据。
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