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。

公开(公告)号：US11426062B2

公开(公告)日：2022-08-30

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

IPC: A61B1/24 ,  A61B1/00 ,  A61B1/04 ,  A61B5/00 ,  A61C9/00 ,  A61B1/06

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.

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。

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。

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。