Tomosynthesis imaging system and method
    1.
    发明申请
    Tomosynthesis imaging system and method 有权
    系统合成成像系统及方法

    公开(公告)号:US20050105679A1

    公开(公告)日:2005-05-19

    申请号:US10776690

    申请日:2004-02-11

    摘要: A system for three-dimensional tomosynthesis imaging of a target element is provided having an image acquisition element and a processor. The image acquisition element obtains a plurality of images of the target element from a plurality of angles and includes a radiation source that is positionable at a plurality of angles with respect to the target element and a radiation detector. The radiation detector is positioned so as to detect radiation emitted by the radiation source passing through the target element and determine a plurality of attenuation values for radiation passing through the target element to establish a radiation absorbance projection image of the target element for a particular radiation source angle. The processor is configured to apply an iterative reconstruction algorithm to the radiation absorbance projection images of the target element obtained from a plurality of radiation source angles to generate a three-dimensional reconstruction of the target element. The system can gain further accuracy where the iterative reconstruction algorithm is applied using cone-beam forward projection and back projection.

    摘要翻译: 提供了具有图像采集元件和处理器的目标元件的三维断层合成成像系统。 图像采集元件从多个角度获得目标元件的多个图像,并且包括可相对于目标元件以多个角度定位的辐射源和放射线检测器。 放射线检测器被定位成检测通过目标元件的辐射源发射的辐射,并确定用于通过目标元件的辐射的多个衰减值,以建立用于特定辐射源的目标元件的辐射吸收投影图像 角度。 处理器被配置为对从多个辐射源角度获得的目标元件的辐射吸收投影图像应用迭代重建算法,以产生目标元素的三维重建。 在使用锥束前向投影和反投影应用迭代重建算法的情况下,系统可以获得进一步的准确性。

    TOMOSYNTHESIS IMAGING SYSTEM AND METHOD
    2.
    发明申请
    TOMOSYNTHESIS IMAGING SYSTEM AND METHOD 审中-公开
    TOMOSYNTHESIS成像系统和方法

    公开(公告)号:US20080232545A1

    公开(公告)日:2008-09-25

    申请号:US12099416

    申请日:2008-04-08

    IPC分类号: A61B6/00

    摘要: A system for three-dimensional tomosynthesis imaging of a target element is provided having an image acquisition element and a processor. The image acquisition element obtains a plurality of images of the target element from a plurality of angles and includes a radiation source that is positionable at a plurality of angles with respect to the target element and a radiation detector. The radiation detector is positioned so as to detect radiation emitted by the radiation source passing through the target element and determine a plurality of attenuation values for radiation passing through the target element to establish a radiation absorbance projection image of the target element for a particular radiation source angle. The processor is configured to apply an iterative reconstruction algorithm to the radiation absorbance projection images of the target element obtained from a plurality of radiation source angles to generate a three-dimensional reconstruction of the target element. The system can gain further accuracy where the iterative reconstruction algorithm is applied using cone-beam forward projection and back projection.

    摘要翻译: 提供了具有图像采集元件和处理器的目标元件的三维断层合成成像系统。 图像采集元件从多个角度获得目标元件的多个图像,并且包括可相对于目标元件以多个角度定位的辐射源和放射线检测器。 放射线检测器被定位成检测通过目标元件的辐射源发射的辐射,并确定通过目标元件的辐射的多个衰减值,以建立用于特定辐射源的目标元件的辐射吸收投影图像 角度。 处理器被配置为对从多个辐射源角度获得的目标元件的辐射吸收投影图像应用迭代重建算法,以产生目标元素的三维重建。 在使用锥束前向投影和反投影应用迭代重建算法的情况下,系统可以获得进一步的准确性。

    Tomosynthesis imaging system and method
    3.
    发明授权
    Tomosynthesis imaging system and method 有权
    系统合成成像系统及方法

    公开(公告)号:US07356113B2

    公开(公告)日:2008-04-08

    申请号:US10776690

    申请日:2004-02-11

    IPC分类号: A61B6/02

    摘要: A system for three-dimensional tomosynthesis imaging of a target element includes an image acquisition element and a processor. The image acquisition element obtains a plurality of images of the target element from a plurality of angles and includes a radiation source that is positionable at a plurality of angles with respect to the target element and a radiation detector. The radiation detector is positioned so as to detect radiation emitted by the radiation source passing through the target element and determine a plurality of attenuation values for radiation passing through the target element to establish a radiation absorbance projection image of the target element for a particular radiation source angle. The processor is configured to apply an iterative reconstruction algorithm to the radiation absorbance projection images of the target element obtained from a plurality of radiation source angles to generate a three-dimensional reconstruction of the target element.

    摘要翻译: 用于目标元件的三维断层合成成像的系统包括图像采集元件和处理器。 图像采集元件从多个角度获得目标元件的多个图像,并且包括可相对于目标元件以多个角度定位的辐射源和放射线检测器。 放射线检测器被定位成检测通过目标元件的辐射源发射的辐射,并确定用于通过目标元件的辐射的多个衰减值,以建立用于特定辐射源的目标元件的辐射吸收投影图像 角度。 处理器被配置为对从多个辐射源角度获得的目标元件的辐射吸收投影图像应用迭代重建算法,以产生目标元素的三维重建。

    Multi-segment cone-beam reconstruction system and method for tomosynthesis imaging
    4.
    发明授权
    Multi-segment cone-beam reconstruction system and method for tomosynthesis imaging 有权
    多段锥束重建系统及其相关方法

    公开(公告)号:US07773721B2

    公开(公告)日:2010-08-10

    申请号:US10578295

    申请日:2004-11-29

    IPC分类号: A61B6/03

    摘要: A tomosynthesis method for creating a three-dimensional reconstruction of a target element volume acquires radiation absorbance images of the target element volume through a limited plurality of positions. The target element volume is divided into a plurality of volume segments and a reconstruction algorithm is applied to each segment to generate a three-dimensional reconstruction of each volume segment. The three-dimensional reconstruction of each volume segment is then merged to create a three-dimensional reconstruction of the target volume. A tomosynthesis system and a computer program product for carrying out tomosynthesis are also provided.

    摘要翻译: 用于创建目标元素体积的三维重建的断层合成方法通过有限的多个位置获取目标元素体积的辐射吸收图像。 目标元素体积被分成多个音量段,并且将重建算法应用于每个段以产生每个音量段的三维重建。 然后将每个卷段的三维重建合并,以创建目标体积的三维重建。 还提供了用于进行断层合成的断层合成系统和计算机程序产品。

    Method and system for full duplex relaying in a wireless communication network
    8.
    发明授权
    Method and system for full duplex relaying in a wireless communication network 有权
    无线通信网络中全双工中继的方法和系统

    公开(公告)号:US09356688B2

    公开(公告)日:2016-05-31

    申请号:US12475241

    申请日:2009-05-29

    IPC分类号: H04B7/26 H04B7/155 H04B7/02

    摘要: Embodiments of the present invention are systems and methods for wireless communication. According to one embodiment, a system for wireless communication comprises a first relay station, second relay station, and a base station. The first relay station and the second relay station are operable to receive and transmit wireless signals. The base station is operable to transmit the wireless signals to the first relay station and the second relay station in an interchanging pattern during successive time frames so that the first relay station and the second relay station forward the wireless signals to a mobile station.

    摘要翻译: 本发明的实施例是用于无线通信的系统和方法。 根据一个实施例,一种用于无线通信的系统包括第一中继站,第二中继站和基站。 第一中继站和第二中继站可操作以接收和发送无线信号。 基站可操作以在连续的时间帧期间以相互交换的模式将无线信号发送到第一中继站和第二中继站,使得第一中继站和第二中继站将无线信号转发到移动站。