公开(公告)号：EP3495850A1

公开(公告)日：2019-06-12

申请号：EP17836147.3

申请日：2017-02-10

申请人： Tsinghua University ,  Nuctech Company Limited

发明人： ZHANG, Li ,  CHEN, Zhiqiang ,  WANG, Sen ,  XU, Xiaofei ,  LI, Yuanjing ,  JIN, Xin

IPC分类号： G01T1/36

摘要： The present disclosure relates to a data processing method and device. The data processing method comprises steps of: performing detector response calibration based on a detector response obtained by an incidence of rays with known energy into a detector to obtain a detector response model; obtaining a photon counting model of the detector between incident energy spectrum data of the detector and detected energy spectrum data of the detector based on the detector response model; and performing a deconvolution operation on counts of photons in respective energy regions in the detected energy spectrum data of the detector based on the photon counting model of the detector, to obtain real counts of photons in respective energy regions in the incident energy spectrum data of the detector.

公开(公告)号：EP3276575A1

公开(公告)日：2018-01-31

申请号：EP17173576.4

申请日：2017-05-30

申请人： Nuctech Company Limited

发明人： ZHANG, Li ,  WANG, Sen ,  CHEN, Zhiqiang ,  XING, Yuxiang ,  JIN, Xin

IPC分类号： G06T7/33

CPC分类号： G06T7/33 ,  G06T2207/10004 ,  G06T2207/10081

摘要： The present disclosure discloses a method, an apparatus and a system for reconstructing an image of a three-dimensional surface. The method comprises the following steps of: constructing a three-dimensional model of the three-dimensional surface using X-ray imaging data obtained by imaging the three-dimensional surface with X-ray and extracting three-dimensional coordinate parameters of feature points; constructing one or more two-dimensional posture images of the three-dimensional surface using visible light imaging data obtained by imaging the three-dimensional surface with visible lights, and extracting two-dimensional coordinate parameters of feature points from each of the two-dimensional posture images; establishing a mapping relationship between the two-dimensional posture image and the three-dimensional model by matching the three-dimensional coordinate parameters and the two dimensional coordinate parameters of the feature points in each of the two-dimensional posture image; and filling the one or more two-dimensional posture image onto the three-dimensional model utilizing the mapping relationship established for each of the two dimensional posture images to form a reconstructed image of the three-dimensional surface, wherein the X-ray imaging data and the visible light imaging data of the three-dimensional surface along the same orientation are simultaneously captured.

摘要翻译： 本公开公开了用于重建三维表面的图像的方法，设备和系统。 该方法包括以下步骤：使用通过用X射线对三维表面进行成像获得的X射线成像数据并提取特征点的三维坐标参数来构建三维表面的三维模型; 使用通过用可见光对三维表面进行成像获得的可见光成像数据来构造三维表面的一个或多个二维姿态图像，并且从二维姿态中的每一个提取特征点的二维坐标参数 图片; 通过匹配二维姿势图像中的每一个中的特征点的三维坐标参数和二维坐标参数，建立二维姿势图像和三维模型之间的映射关系; 以及利用为每个二维姿势图像建立的映射关系将一个或多个二维姿势图像填充到三维模型上以形成三维表面的重建图像，其中X射线成像数据和 同时捕捉沿着相同取向的三维表面的可见光成像数据。