-
1.发明申请METHODS AND APPARATUS FOR SCATTER CORRECTION FOR CBCT SYSTEM AND CONE-BEAM IMAGE RECONSTRUCTION 审中-公开用于CBCT系统和球面图像重建的散射校正的方法和装置公开(公告)号：US20140334700A1
公开(公告)日：2014-11-13
申请号：US14337707
申请日：2014-07-22
Applicant: Carestream Health, Inc.
Inventor： Dong Yang , Nathan J. Packard , Robert A. Senn
CPC classification number: A61B6/5282 , A61B6/032 , A61B6/4085 , A61B6/583 , G06T5/50 , G06T7/0016 , G06T11/005 , G06T2207/10116 , G06T2207/20182
Abstract: Embodiments of methods and/or apparatus for 3-D volume image reconstruction of a subject, executed at least in part on a computer for use with a digital radiographic apparatus, can obtain image data for 2-D projection images over a range of scan angles. For each of the plurality of projection images, an enhanced projection image can be generated. In one embodiment, a first scatter intensity distribution through the plurality of projection images can be modulated based on a first scaling function and a SPR to generate a second scatter intensity distribution through the plurality of projection images, which can be combined with the original plurality of projection images.
Abstract translation: 至少部分地在与数字放射线照相设备一起使用的计算机上执行的对象的3-D体积图像重建的方法和/或装置的实施例可以在扫描角度范围内获得用于2-D投影图像的图像数据 。 对于多个投影图像中的每一个，可以生成增强的投影图像。 在一个实施例中，可以基于第一缩放函数和SPR来调制通过多个投影图像的第一散射强度分布，以通过多个投影图像生成第二散射强度分布，所述第二散射强度分布可以与原始多个 投影图像。
-
2.发明授权Methods and apparatus for scatter correction for CBCT system and cone-beam image reconstruction 有权用于CBCT系统和锥束图像重建的散射校正的方法和装置公开(公告)号：US09265475B2
公开(公告)日：2016-02-23
申请号：US14337707
申请日：2014-07-22
Applicant: Carestream Health, Inc.
Inventor： Dong Yang , Nathan J. Packard , Robert A. Senn
CPC classification number: A61B6/5282 , A61B6/032 , A61B6/4085 , A61B6/583 , G06T5/50 , G06T7/0016 , G06T11/005 , G06T2207/10116 , G06T2207/20182
Abstract: Embodiments of methods and/or apparatus for 3-D volume image reconstruction of a subject, executed at least in part on a computer for use with a digital radiographic apparatus, can obtain image data for 2-D projection images over a range of scan angles. For each of the plurality of projection images, an enhanced projection image can be generated. In one embodiment, a first scatter intensity distribution through the plurality of projection images can be modulated based on a first scaling function and a SPR to generate a second scatter intensity distribution through the plurality of projection images, which can be combined with the original plurality of projection images.
Abstract translation: 至少部分地在与数字放射线照相设备一起使用的计算机上执行的对象的3-D体积图像重建的方法和/或装置的实施例可以在扫描角度范围内获得用于2-D投影图像的图像数据 。 对于多个投影图像中的每一个，可以生成增强的投影图像。 在一个实施例中，可以基于第一缩放函数和SPR来调制通过多个投影图像的第一散射强度分布，以通过多个投影图像生成第二散射强度分布，所述第二散射强度分布可以与原始多个 投影图像。
-
公开(公告)号：US10959697B2
公开(公告)日：2021-03-30
申请号：US16344846
申请日：2017-11-22
Applicant: CARESTREAM HEALTH, INC.
Inventor： Samuel Richard , Xiaohui Wang , Timothy J. Wojcik , Nathan J. Packard
Abstract: Synchronizing operation between a digital radiographic detector's integration periods and an x-ray generator's x-ray pulse rate by transmitting a frame rate to the detector and the generator. In a first mode, the detector monitors one or more pixels to detect an x-ray pulse. The firing time of the detected x-ray pulse relative to an internal clock of the detector is used to synchronize the detector's integration periods with the pulse rate of the x-ray generator based on the transmitted frame rate and the detected firing time of the x-ray pulses. Successive pulses may also be used to determine a frame rate without prior transmission thereof.
-
公开(公告)号：US10813604B2
公开(公告)日：2020-10-27
申请号：US15779870
申请日：2016-12-13
Applicant: CARESTREAM HEALTH, INC.
Inventor： Richard A. Simon , Nathan J. Packard
Abstract: An apparatus having an x-ray source and an x-ray detector configured to be rotated about a standing patient to capture and store a plurality of radiographic images of the patient during the rotation. A portable enclosure surrounds the source, the detector and the patient.
-
公开(公告)号：US10307123B2
公开(公告)日：2019-06-04
申请号：US15350470
申请日：2016-11-14
Applicant: Carestream Health, Inc.
Inventor： Nathan J. Packard , John Yorkston , Richard A. Simon , Levon O. Vogelsang , Robert A. Senn
Abstract: An imaging method, accesses cone beam computed tomography (CBCT) data and displays, on a display monitor, at least one view of the CBCT data. The method provides an interface for a user to indicate a tomosynthesis reconstruction plane on the displayed view of the CBCT data; and displays a tomosynthesis image on the display monitor according to the indicated tomosynthesis reconstruction plane.
-
Patent Agency Ranking
公开(公告)号：US09931098B2
公开(公告)日：2018-04-03
申请号：US15098610
申请日：2016-04-14
Applicant: Carestream Health, Inc.
Inventor： Frank West , Nathan J. Packard
CPC classification number: A61B6/583 , A61B6/032 , A61B6/4007 , A61B6/4085 , G06T11/005 , G06T11/008 , G06T2207/10081 , G06T2207/30168
Abstract: A method of operating a tomographic imaging system whereby a plurality of radiographic images of an object are captured at a first orientation of the system's source and detector. After the radiographic images are captured and stored, geometric calibration data for the system is measured, corresponding to the first orientation of the system. A three dimensional image of the object is reconstructed using the measured geometric calibration data corresponding to the first orientation.
-
公开(公告)号：US20150250431A1
公开(公告)日：2015-09-10
申请号：US14433065
申请日：2013-10-07
Applicant: Carestream Health, Inc.
Inventor： John Yorkston , Jeffrey H. Siewerdsen , Nathan J. Packard
IPC: A61B6/03
CPC classification number: A61B6/04 , A61B6/025 , A61B6/032 , A61B6/035 , A61B6/0492 , A61B6/4085 , A61B6/4233 , A61B6/4405 , A61B6/4429 , A61B6/4441 , A61B6/4447 , A61B6/4452 , A61B6/4482 , A61B6/461 , A61B6/467 , A61B6/50 , A61B6/527 , A61B6/541 , A61B6/548 , F04C2270/041
Abstract: An apparatus for cone beam computed tomography can include a support structure, a scanner assembly coupled to the support structure for controlled movement in at least x, y and z orientations, the scanner assembly can include a DR detector configured to move along at least a portion of detector path that extends at least partially around a scan volume with a distance D1 that is sufficiently long to allow the scan volume to be positioned within the detector path; a radiation source configured to move along at least a portion of a source path outside the detector path, the source path having a distance D2 greater than the distance D1, the distance D2 being sufficiently long to allow adequate radiation exposure of the scan volume for an image
Abstract translation: 用于锥束计算机断层摄影的装置可以包括支撑结构，耦合到支撑结构的扫描器组件，用于至少x，y和z取向中的受控运动，扫描器组件可以包括DR检测器，其构造成沿着至少一部分 的检测器路径，其至少部分地围绕扫描体积延伸，距离D1足够长以允许扫描体积定位在检测器路径内; 辐射源，被配置为沿着所述检测器路径外部的源路径的至少一部分移动，所述源路径具有大于所述距离D1的距离D2，所述距离D2足够长以允许所述扫描体积对于 图片
-
公开(公告)号：US10789737B2
公开(公告)日：2020-09-29
申请号：US15780400
申请日：2016-12-20
Applicant: CARESTREAM HEALTH, INC.
Inventor： Xiaohui Wang , Richard A. Simon , Levon O. Vogelsang , Nathan J. Packard
Abstract: A computer implemented method for reconstructing a 3-D volume image using a radiographic imaging system having one or more x-ray sources and a digital detector. A plurality of radiographic images of a subject at various angles are captured in the digital detector. Image data in two or more pixels of the detector that are adjacent to each other in a row direction or a column direction are combined, while pixels adjacent in the other direction are not combined.
-
公开(公告)号：US10251612B2
公开(公告)日：2019-04-09
申请号：US15293326
申请日：2016-10-14
Applicant: Carestream Health, Inc.
Inventor： Yuan Lin , William J. Sehnert , Nathan J. Packard
Abstract: A method for generating a modulation tube current waveform acquires reflectance images of a subject and generates a surface contour characterization of the subject according to the reflectance images. The surface contour is registered to the imaged field of view. A volume image is formed according to the generated surface contour. A modulation factor for the radiographic volume imaging apparatus is determined at a plurality of modulation points. A modulation tube current waveform is generated using the modulation factor.
-
公开(公告)号：US20180040121A1
公开(公告)日：2018-02-08
申请号：US15293326
申请日：2016-10-14
Applicant: Carestream Health, Inc.
Inventor： Yuan Lin , William J. Sehnert , Nathan J. Packard
IPC: G06T7/00
CPC classification number: A61B6/032 , A61B5/0035 , A61B5/0077 , A61B6/405 , A61B6/488 , A61B6/544
Abstract: A method for generating a modulation tube current waveform acquires reflectance images of a subject and generates a surface contour characterization of the subject according to the reflectance images. The surface contour is registered to the imaged field of view. A volume image is formed according to the generated surface contour. A modulation factor for the radiographic volume imaging apparatus is determined at a plurality of modulation points. A modulation tube current waveform is generated using the modulation factor.
-
-
-
-
-
-
-
-
-
Search Results
11
records
(took 0.012 seconds)
