公开(公告)号：US20110270077A1

公开(公告)日：2011-11-03

申请号：US12871232

申请日：2010-08-30

申请人： Jihoon Kang ,  Yong Choi ,  Wei Hu ,  Yoon Suk Huh ,  Key Jo Hong ,  Hyun Keong Lim ,  Sangsu Kim

发明人： Jihoon Kang ,  Yong Choi ,  Wei Hu ,  Yoon Suk Huh ,  Key Jo Hong ,  Hyun Keong Lim ,  Sangsu Kim

IPC分类号： A61B5/055

CPC分类号： G01T1/1603 ,  A61B5/055 ,  A61B6/5247 ,  G01T1/2985

摘要： Provided is a method for removing noise of a positron emission tomography (PET) signal in a PET-magnetic resonance imaging (MRI) fusion device without using an MRI radio frequency (RF) shield that degrades image quality. The method includes: (a1) converting a PET analog signal into a digital signal having a predetermined sampling frequency; (b1) determining whether the resulting PET digital signal is to be included in image reconstruction based on modeling using sampling points of the PET digital signal or an integration value of the PET digital signal; and (c1) extracting only the PET digital signal that will be included in image reconstruction. The method allows acquisition of molecular-level images without declined performance of a PET detector.

摘要翻译： 提供了一种在不使用降低图像质量的MRI射频（RF）屏蔽）的情况下去除PET-磁共振成像（MRI）融合装置中的正电子发射断层摄影（PET）信号的噪声的方法。 该方法包括：（a1）将PET模拟信号转换为具有预定采样频率的数字信号; （b1）基于使用PET数字信号的采样点或PET数字信号的积分值进行建模，确定所得到的PET数字信号是否包括在图像重建中; 和（c1）仅提取将包括在图像重建中的PET数字信号。 该方法允许采集分子水平图像而不降低PET检测器的性能。

公开(公告)号：US08880144B2

公开(公告)日：2014-11-04

申请号：US12904584

申请日：2010-10-14

申请人： Jihoon Kang ,  Yong Choi ,  Key Jo Hong ,  Wei Hu ,  Yoon Suk Huh ,  Hyun Keong Lim ,  Sangsu Kim

发明人： Jihoon Kang ,  Yong Choi ,  Key Jo Hong ,  Wei Hu ,  Yoon Suk Huh ,  Hyun Keong Lim ,  Sangsu Kim

IPC分类号： A61B5/05 ,  A61B6/03 ,  A61B6/00 ,  A61B5/055 ,  G01T1/29 ,  G01R33/48

CPC分类号： G01T1/2985 ,  A61B5/055 ,  A61B6/037 ,  A61B6/4258 ,  A61B6/508 ,  A61B6/5235 ,  G01R33/481 ,  G01T1/2935

摘要： Provided is a positron emission tomography (PET) detector module using Geiger-mode avalanche photodiode (GAPD) as a photosensor. The PET detector module includes: a PET detector unit with a scintillation crystal detecting gamma rays emitted from a living body and converting them into a scintillation light and a first GAPD photosensor and a second GAPD photosensor each being connected to either end of the scintillation crystal and converting the scintillation light into an electrical signal; and a depth of interaction (DOI) decoding unit receiving the signals from the PET detector unit and comparing amplitude of the signals detected by the first GAPD photosensor and the second GAPD photosensor, thereby providing the depth information where the gamma rays are incident on the scintillation crystal (DOI). The disclosed PET detector module can provide improved energy resolution and additional DOI information while maintaining linearity.

摘要翻译： 提供了使用盖革模式雪崩光电二极管（GAPD）作为光电传感器的正电子发射断层摄影（PET）检测器模块。 PET检测器模块包括：具有闪烁晶体的PET检测器单元，其检测从活体发射的γ射线并将其转换成闪烁光，并将第一GAPD光传感器和第二GAPD光电传感器连接到闪烁晶体的任一端，以及 将闪烁光转换成电信号; 以及相互作用深度（DOI）解码单元，其接收来自PET检测器单元的信号，并比较由第一GAPD光电传感器和第二GAPD光电传感器检测的信号的振幅，由此提供伽马射线入射在闪烁上的深度信息 晶体（DOI）。 所公开的PET检测器模块可以提供改进的能量分辨率和附加的DOI信息，同时保持线性。

公开(公告)号：US20110270076A1

公开(公告)日：2011-11-03

申请号：US12871220

申请日：2010-08-30

申请人： Jihoon Kang ,  Yong Choi ,  Key Jo Hong ,  Wei Hu ,  Hyun Keong Lim ,  Yoon Suk Huh ,  Sangsu Kim

发明人： Jihoon Kang ,  Yong Choi ,  Key Jo Hong ,  Wei Hu ,  Hyun Keong Lim ,  Yoon Suk Huh ,  Sangsu Kim

IPC分类号： A61B5/055

CPC分类号： A61B5/055 ,  A61B5/0035 ,  A61B6/5247 ,  G01R33/481 ,  G01T1/1603 ,  G01T1/2985

摘要： Provided is a method for removing noise of a positron emission tomography (PET) signal in a PET-magnetic resonance imaging (MRI) fusion device without using an MRI radio frequency (RF) shield that degrades image quality. The method includes: receiving a PET output signal from a PET-MRI fusion device and performing analog filtering by removing noise components due to an RF pulse frequency based on the relationship between the frequency of the PET output signal and a magnetic resonance (MR) RF frequency (Larmor frequency); and converting the filtered signal into a digital signal through sampling. The method allows acquisition of molecular-level images without declined performance of a PET detector in MRI environment.

摘要翻译： 提供了一种在不使用降低图像质量的MRI射频（RF）屏蔽）的情况下去除PET-磁共振成像（MRI）融合装置中的正电子发射断层摄影（PET）信号的噪声的方法。 该方法包括：从PET-MRI融合装置接收PET输出信号，并且通过基于PET输出信号的频率与磁共振（MR）RF之间的关系消除由于RF脉冲频率引起的噪声分量来执行模拟滤波 频率（拉莫尔频率）; 并通过采样将滤波后的信号转换成数字信号。 该方法允许采集分子水平的图像，而不会在MRI环境中PET检测器的性能下降。

公开(公告)号：US20110263965A1

公开(公告)日：2011-10-27

申请号：US12904584

申请日：2010-10-14

申请人： Jihoon Kang ,  Yong Choi ,  Key Jo Hong ,  Wei Hu ,  Yoon Suk Huh ,  Hyun Keong Lim ,  Sangsu Kim

发明人： Jihoon Kang ,  Yong Choi ,  Key Jo Hong ,  Wei Hu ,  Yoon Suk Huh ,  Hyun Keong Lim ,  Sangsu Kim

IPC分类号： A61B5/055 ,  G01T1/20

CPC分类号： G01T1/2985 ,  A61B5/055 ,  A61B6/037 ,  A61B6/4258 ,  A61B6/508 ,  A61B6/5235 ,  G01R33/481 ,  G01T1/2935

摘要： Provided is a positron emission tomography (PET) detector module using Geiger-mode avalanche photodiode (GAPD) as a photosensor. The PET detector module includes: a PET detector unit comprising a scintillation crystal detecting gamma rays emitted from a living body and converting them into a flash of light and a first GAPD photosensor and a second GAPD photosensor each being connected to either end of the scintillation crystal and converting the light flash into an electrical signal; and a reaction depth determination unit receiving the signals from the PET detector unit and comparing amplitude of the signals detected by the first GAPD photosensor and the second GAPD photosensor, thereby determining the position where the gamma rays are incident on the scintillation crystal (reaction depth). The disclosed PET detector module can provide high energy and high energy and reaction depth data while maintaining linearity.

摘要翻译： 提供了使用盖革模式雪崩光电二极管（GAPD）作为光电传感器的正电子发射断层摄影（PET）检测器模块。 PET检测器模块包括：PET检测器单元，其包括检测从活体发射的γ射线并将其转换成闪光的闪烁晶体，以及第一GAPD光电传感器和第二GAPD光电传感器，每个连接到闪烁晶体的任一端 并将闪光灯转换成电信号; 以及反应深度确定单元，接收来自PET检测器单元的信号，并比较由第一GAPD光传感器和第二GAPD光传感器检测的信号的幅度，从而确定伽马射线入射到闪烁晶体上的位置（反应深度） 。 所公开的PET检测器模块可以提供高能量和高能量和反应深度数据，同时保持线性。

公开(公告)号：US08401613B2

公开(公告)日：2013-03-19

申请号：US12566582

申请日：2009-09-24

申请人： Yong Choi ,  Ji Hoon Kang ,  Jin-Ho Jung ,  Key Jo Hong ,  Wei Hu ,  Byung Jun Min

发明人： Yong Choi ,  Ji Hoon Kang ,  Jin-Ho Jung ,  Key Jo Hong ,  Wei Hu ,  Byung Jun Min

IPC分类号： A61B5/05

CPC分类号： G01R33/481 ,  G01T1/16 ,  G01T1/1603

摘要： Disclosed herein is a PET-MRI combination apparatus which can extend transaxial and axial fields of view (FOV) by transmitting an output signal from a photo sensor to the outside of an MRI bore using cable. The PET-MRI combination apparatus includes an MRI bore for capturing an MR image of an object. A PET detector is installed inside imaging space of the MRI bore, and is configured such that a plurality of scintillation crystal arrays, each having scintillation crystals arranged in a ring shape, is arranged in a longitudinal direction so as to extend a axial field of view (FOV). A PET circuit unit is installed outside the MRI bore to prevent the PET circuit unit from being influenced by a magnetic field in the MRI bore, and is configured to include a signal amplification circuit and a signal processing circuit. A cable is configured to connect the PET detector to the PET circuit unit.

摘要翻译： 本文公开了一种PET-MRI组合装置，其可以通过使用电缆将来自光传感器的输出信号传输到MRI孔的外部来延伸远轴和轴向视场（FOV）。 PET-MRI组合装置包括用于捕获物体的MR图像的MRI孔。 PET检测器安装在MRI孔的成像空间的内部，并且被配置为使得沿长度方向布置多个具有环状的闪烁晶体的闪烁晶体阵列，以便延伸轴向视场 （FOV）。 PET电路单元安装在MRI孔外部，以防止PET电路单元受到MRI孔中的磁场的影响，并且被配置为包括信号放大电路和信号处理电路。 电缆被配置为将PET检测器连接到PET电路单元。

公开(公告)号：US20100217112A1

公开(公告)日：2010-08-26

申请号：US12566582

申请日：2009-09-24

申请人： Yong Choi ,  Ji Hoon Kang ,  Jin-Ho Jung ,  Key Jo Hong ,  Wei Hu ,  Byung Jun Min

发明人： Yong Choi ,  Ji Hoon Kang ,  Jin-Ho Jung ,  Key Jo Hong ,  Wei Hu ,  Byung Jun Min

IPC分类号： A61B5/055 ,  G01R33/44

CPC分类号： G01R33/481 ,  G01T1/16 ,  G01T1/1603

摘要： Disclosed herein is a PET-MRI combination apparatus which can extend transaxial and axial fields of view (FOV) by transmitting an output signal from a photo sensor to the outside of an MRI bore using cable. The PET-MRI combination apparatus includes an MRI bore for capturing an MR image of an object. A PET detector is installed inside imaging space of the MRI bore, and is configured such that a plurality of scintillation crystal arrays, each having scintillation crystals arranged in a ring shape, is arranged in a longitudinal direction so as to extend a axial field of view (FOV). A PET circuit unit is installed outside the MRI bore to prevent the PET circuit unit from being influenced by a magnetic field in the MRI bore, and is configured to include a signal amplification circuit and a signal processing circuit. A cable is configured to connect the PET detector to the PET circuit unit.

摘要翻译： 本文公开了一种PET-MRI组合装置，其可以通过使用电缆将来自光传感器的输出信号传输到MRI孔的外部来延伸远轴和轴向视场（FOV）。 PET-MRI组合装置包括用于捕获物体的MR图像的MRI孔。 PET检测器安装在MRI孔的成像空间的内部，并且被配置为使得沿长度方向布置多个具有环状的闪烁晶体的闪烁晶体阵列，以便延伸轴向视场 （FOV）。 PET电路单元安装在MRI孔外部，以防止PET电路单元受到MRI孔中的磁场的影响，并且被配置为包括信号放大电路和信号处理电路。 电缆被配置为将PET检测器连接到PET电路单元。

公开(公告)号：US20180372289A1

公开(公告)日：2018-12-27

申请号：US16046790

申请日：2018-07-26

申请人： Wei Hu ,  Chao Li

发明人： Wei Hu ,  Chao Li

IPC分类号： F21S10/04 ,  H02N15/00

摘要： A magnetic levitation imitation flame device includes a mounting base, a flame member, a positioning bracket, a first magnet, and a second magnet. The positioning bracket is fixed in the mounting base. The first magnet is disposed on the flame member. The flame member is disposed on the positioning bracket and protrudes outwards from the mounting base. The second magnet is fixed at a lower end of the positioning bracket. The first magnet and the second magnet are arranged up and down. Magnetic poles thereof facing each other have same polarity so that the flame member is levitated relative to the positioning bracket under a repulsive force of the first magnet and the second magnet. Thus, the flame member swings with big angle, naturally and realistically, and saves electric energy. In addition, an imitation flame lamp is also provided.

公开(公告)号：US09936165B2

公开(公告)日：2018-04-03

申请号：US13977278

申请日：2012-09-06

申请人： Wenlong Li ,  Xiaofeng Tong ,  Yangzhou Du ,  Wei Hu ,  Yimin Zhang

发明人： Wenlong Li ,  Xiaofeng Tong ,  Yangzhou Du ,  Wei Hu ,  Yimin Zhang

IPC分类号： G06F15/16 ,  H04N7/15 ,  H04L12/18 ,  G06K9/00 ,  H04N7/14

CPC分类号： H04N7/157 ,  G06K9/00302 ,  H04L12/1827 ,  H04N7/147 ,  H04N7/155

摘要： A video communication system that replaces actual live images of the participating users with animated avatars. A method may include initiating communication between a first user device and a remote user device; receiving selection of a new avatar to represent a user of the first user device; identifying a new avatar file for the new avatar in an avatar database associated with the first user device; determining that the new avatar file is not present in a remote avatar database associated with the remote user device; and transmitting the new avatar file to the remote avatar database in response to determining that the new avatar file is not present in the remote avatar database.

公开(公告)号：US09235879B2

公开(公告)日：2016-01-12

申请号：US13538966

申请日：2012-06-29

申请人： Sun Wenxiu ,  Oscar C. Au ,  Lingfeng Xu ,  Yujun Li ,  Wei Hu ,  Lu Wang

发明人： Sun Wenxiu ,  Oscar C. Au ,  Lingfeng Xu ,  Yujun Li ,  Wei Hu ,  Lu Wang

IPC分类号： G06T5/00 ,  H04N13/02

CPC分类号： G06T5/005 ,  G06T2207/10021 ,  G06T2207/20182 ,  H04N13/261

摘要： Embodiments of apparatuses, systems, and methods for a temporal hole filling are described. Specifically, an embodiment of the present invention may include a depth-based hole filling process that includes a background modeling technique (SGM). Beneficially, in such an embodiment, holes in the synthesized view may be filled effectively and efficiently.

摘要翻译： 描述了用于时空填充的装置，系统和方法的实施例。 具体地，本发明的实施例可以包括基于深度的孔填充过程，其包括背景建模技术（SGM）。 有利地，在这样的实施例中，可以有效且有效地填充合成视图中的孔。

公开(公告)号：US09116300B2

公开(公告)日：2015-08-25

申请号：US13146308

申请日：2010-06-25

申请人： Yanqing Lu ,  Shuyi Zhang ,  Qi Zhong ,  Fei Xu ,  Xiaowen Lin ,  Wei Hu

发明人： Yanqing Lu ,  Shuyi Zhang ,  Qi Zhong ,  Fei Xu ,  Xiaowen Lin ,  Wei Hu

IPC分类号： G02B6/26 ,  G02B6/293 ,  G01N21/45 ,  G02B6/02 ,  G02B6/255 ,  G01J9/00 ,  G02B6/14

CPC分类号： G02B6/29344 ,  G01J2009/004 ,  G01N21/45 ,  G02B6/02295 ,  G02B6/14 ,  G02B6/2551 ,  G02B6/262

摘要： Technologies are generally described for techniques useful in an interferometer system. In some examples, a system may include a first waveguide effective to propagate a first wave in a first mode. In some examples, the system may include a second waveguide effective to, in response to the first wave, propagate second and third waves in second and third modes, respectively. In some examples, the second waveguide may be effective to reflect the second and third waves off a reflection surface to produce first, second, third and fourth reflected waves. In some examples, the second waveguide may be effective to propagate the first and third reflected waves in the second mode and propagate the second and fourth reflected waves in the third mode.

摘要翻译： 技术通常描述用于干涉仪系统中的技术。 在一些示例中，系统可以包括有效地在第一模式中传播第一波的第一波导。 在一些示例中，系统可以包括有效响应于第一波的第二波导，其分别在第二和第三模式中传播第二和第三波。 在一些示例中，第二波导可以有效地将第二和第三波从反射表面反射以产生第一，第二，第三和第四反射波。 在一些示例中，第二波导可以有效地在第二模式中传播第一和第三反射波，并且在第三模式中传播第二和第四反射波。