-
公开(公告)号：US11688071B2
公开(公告)日：2023-06-27
申请号：US17134570
申请日：2020-12-28
发明人： Debin Hu , Yong Zhao , Yang Lyu , Yizhang Zhao , Liuchun He , Yinghan Qu
IPC分类号： G06T7/00 , G06T7/11 , G06N20/00 , G06V10/25 , G06V10/764 , G06V10/774 , G06V10/44
CPC分类号： G06T7/11 , G06N20/00 , G06T7/0012 , G06V10/25 , G06V10/454 , G06V10/764 , G06V10/774 , G06T2207/30048 , G06T2207/30101
摘要： The present disclosure provides a system and method for image reconstruction and processing. The method may include obtaining image data of an object acquired by an imaging device. The method may include determining one or more regions of interest (ROIs) of the object. The method may also include determining, based on each ROI of the one or more ROIs, a target portion of the image data corresponding to the ROI among the image data. The method may further include reconstructing, based on the target portion of the image data, one or more images of the ROI.
-
公开(公告)号：US10353006B2
公开(公告)日：2019-07-16
申请号：US15638354
申请日：2017-06-29
发明人： Lingzhi Hu , Yang Lyu , Qinghua Li
IPC分类号： G01R31/34 , G01T1/16 , G01T1/29 , G01R33/34 , G01R33/48 , A61B6/00 , A61B6/03 , G01R33/54 , G01R33/58 , G01R33/563
摘要： The present disclosure relates to systems and methods for attenuation correction. The system includes a coil module, which includes a flexible coil and a supporter. The supporter may be configured to hold the flexible coil. The flexible coil may be deformed to form a receiving space.
-
公开(公告)号：US11995744B2
公开(公告)日：2024-05-28
申请号：US17138867
申请日：2020-12-30
CPC分类号： G06T11/005 , A61B6/037 , A61B6/5264 , A61B6/5282 , G01T1/2985 , G06T2210/41
摘要： An imaging method may include obtaining original imaging data of an object in a raw-data domain including original time of flight (TOF) information. The method may also include gating the original imaging data into a plurality of data sets in the raw-data domain. The method may also include determining a plurality of motion vector fields based on the plurality of data sets. The method may also include generating corrected imaging data in the raw-data domain by performing motion correction on at least one of the plurality of data sets based on the original TOF information and at least one corresponding MVF of the plurality of MVFs. The method may also include generating one or more target images of the object by performing, based on the corrected imaging data, image reconstruction.
-
公开(公告)号：US11599995B2
公开(公告)日：2023-03-07
申请号：US16854838
申请日：2020-04-21
发明人： Huifang Xie , Yang Lyu
摘要： The present disclosure provides a system and method for medical imaging. The method may include obtaining a preliminary image and scanning data of a subject acquired using a scanner. The method may also include determining a regularization parameter for a regularization item of an objective function based at least in part on the scanning data, wherein the regularization parameter includes at least two of a first component characterizing quality of the scanning data, a second component characterizing the scanner, or a third component characterizing a feature of the subject. The method may further include generating an image of the subject by reconstructing the preliminary image based on the objective function.
-
公开(公告)号：US10684327B2
公开(公告)日：2020-06-16
申请号：US16511173
申请日：2019-07-15
发明人： Lingzhi Hu , Yang Lyu , Qinghua Li
IPC分类号： G01R31/34 , G01R33/34 , G01R33/48 , G01R33/563 , G01R33/54 , G01R33/58 , G01T1/29 , G01T1/16 , A61B6/03 , A61B6/00
摘要： The present disclosure relates to systems and methods for attenuation correction. The system includes a coil module, which includes a flexible coil and a supporter. The supporter may be configured to hold the flexible coil. The flexible coil may be deformed to form a receiving space.
-
公开(公告)号：US11900602B2
公开(公告)日：2024-02-13
申请号：US18179331
申请日：2023-03-06
发明人： Huifang Xie , Yang Lyu
CPC分类号： G06T7/0012 , A61B5/055 , A61B6/032 , A61B6/037 , A61B6/5235 , A61B6/5247 , A61B6/5258 , G06T5/002 , G06T5/50 , G06T11/005 , G06T2207/10081 , G06T2207/10088 , G06T2207/10104 , G06T2207/20182
摘要： The present disclosure provides a system and method for medical imaging. The method may include obtaining a preliminary image and scanning data of a subject acquired using a scanner. The method may also include determining a regularization parameter for a regularization item of an objective function based at least in part on the scanning data, wherein the regularization parameter includes at least two of a first component characterizing quality of the scanning data, a second component characterizing the scanner, or a third component characterizing a feature of the subject. The method may further include generating an image of the subject by reconstructing the preliminary image based on the objective function.
-
公开(公告)号：US11308662B2
公开(公告)日：2022-04-19
申请号：US16448052
申请日：2019-06-21
摘要： A system and method for image reconstruction are provided. A first region of an object may be determined. The first region may correspond to a first voxel. A second region of the object may be determined. The second region may correspond to a second voxel. Scan data of the object may be acquired. A first regional image may be reconstructed based on the scan data. The reconstruction of the first regional image may include a forward projection on the first voxel and the second voxel and a back projection on the first voxel.
-
公开(公告)号：US11156732B2
公开(公告)日：2021-10-26
申请号：US16945955
申请日：2020-08-03
摘要： The present disclosure provides a positron emission tomography (PET) system and an image reconstruction method thereof. The PET system may include a plurality of annular detector units arranged along an axial direction. Each of the detector units may generate a plurality of single event counts. The PET system may further include a plurality of coincidence logic circuits connected to one or more of the detector units. The coincidence logic circuits may be configured to count coincidence events. Single event data generated by each of the detector units may be transmitted to the corresponding coincidence logic circuit. The plurality of coincidence logic circuits may synchronically generate coincidence counts relating to the plurality of detector units.
-
公开(公告)号：US10692212B2
公开(公告)日：2020-06-23
申请号：US16102693
申请日：2018-08-13
发明人： Yang Lyu
IPC分类号： G06T7/00 , G06T11/60 , G06T5/00 , G06T11/00 , G06T7/60 , G06K9/00 , G06T7/11 , G06T7/13 , G06T7/70
摘要： A system and method relating to image processing are provided. The method may include the following operations. First data at a first bed position and second data at a second bed position may be received. The first bed position and the second bed position may have an overlapping region. A first image and a second image may be reconstructed based on the first data and the second data, respectively. Third data and fourth data corresponding to the overlapping region may be extracted from the first data and the second data, respectively. Merged data may be generated by merging the third data and the fourth data. A third image may be reconstructed based on the merged data. A fourth image may be generated through image composition based on the first image, the second image, and the third image.
-
公开(公告)号：US10347014B2
公开(公告)日：2019-07-09
申请号：US15394633
申请日：2016-12-29
摘要： A system and method for image reconstruction are provided. A first region of an object may be determined. The first region may correspond to a first voxel. A second region of the object may be determined. The second region may correspond to a second voxel. Scan data of the object may be acquired. A first regional image may be reconstructed based on the scan data. The reconstruction of the first regional image may include a forward projection on the first voxel and the second voxel and a back projection on the first voxel.
-
-
-
-
-
-
-
-
-
搜索结果
21 条记录 (耗时 0.019 秒)
