-
公开(公告)号：US08559688B2
公开(公告)日：2013-10-15
申请号：US12826801
申请日：2010-06-30
IPC分类号： G06K9/00
CPC分类号： G06T11/006 , G06T2211/424 , G06T2211/436
摘要： A signal processing method is presented. The method includes acquiring undersampled data corresponding to an object, initializing a first image solution and a second image solution, determining a linear combination solution based upon the first image solution and the second image solution, generating a plurality of selected coefficients by iteratively updating the first image solution, the second image solution and the linear combination solution and adaptively thresholding one or more transform coefficients utilizing the undersampled data, an updated first image solution, an updated second image solution and an updated linear combination solution, and reconstructing a data signal using the plurality of selected coefficients.
摘要翻译： 提出了一种信号处理方法。 该方法包括获取与对象相对应的欠采样数据，初始化第一图像解和第二图像解，基于第一图像解和第二图像解确定线性组合解;通过迭代地更新第一图像解 图像解决方案，第二图像解决方案和线性组合解决方案，并且利用欠采样数据自适应地对一个或多个变换系数进行阈值化，更新的第一图像解决方案，更新的第二图像解决方案和更新的线性组合解决方案，以及使用 多个选定系数。
-
公开(公告)号：US20120002854A1
公开(公告)日：2012-01-05
申请号：US12826801
申请日：2010-06-30
CPC分类号： G06T11/006 , G06T2211/424 , G06T2211/436
摘要： A signal processing method is presented. The method includes acquiring undersampled data corresponding to an object, initializing a first image solution and a second image solution, determining a linear combination solution based upon the first image solution and the second image solution, generating a plurality of selected coefficients by iteratively updating the first image solution, the second image solution and the linear combination solution and adaptively thresholding one or more transform coefficients utilizing the undersampled data, an updated first image solution, an updated second image solution and an updated linear combination solution, and reconstructing a data signal using the plurality of selected coefficients.
摘要翻译： 提出了一种信号处理方法。 该方法包括获取与对象相对应的欠采样数据，初始化第一图像解和第二图像解，基于第一图像解和第二图像解确定线性组合解;通过迭代地更新第一图像解 图像解决方案，第二图像解决方案和线性组合解决方案，并且利用欠采样数据，更新的第一图像解决方案，更新的第二图像解决方案和更新的线性组合解决方案自适应地阈值化一个或多个变换系数，并且使用 多个选定系数。
-
公开(公告)号：US20110038560A1
公开(公告)日：2011-02-17
申请号：US12541550
申请日：2009-08-14
IPC分类号： G06K9/36
CPC分类号： G06K9/6232 , G06K9/0057
摘要： A signal processing method is provided. The signal processing method includes the steps of generating undersampled data corresponding to an object, determining a variable thresholding parameter based on a composition of the undersampled data, and iteratively determining thresholded coefficients to generate a plurality of coefficients by utilizing the undersampled data, a current solution and the variable thresholding parameter by updating the variable thresholding parameter and the current solution, and reconstructing a data signal using the plurality of coefficients.
摘要翻译： 提供信号处理方法。 信号处理方法包括以下步骤：产生与对象相对应的欠采样数据，基于欠采样数据的组合确定可变阈值参数，以及迭代确定阈值系数以通过利用欠采样数据产生多个系数，当前解 以及可变阈值参数，通过更新可变阈值参数和当前解，并且使用多个系数重构数据信号。
-
公开(公告)号：US20090267602A1
公开(公告)日：2009-10-29
申请号：US12110446
申请日：2008-04-28
IPC分类号： G01R33/483
CPC分类号： G01R33/3415 , G01R33/4833 , G01R33/4836 , G01R33/5611
摘要： A system and method for accelerated MR imaging includes a magnetic resonance imaging (MRI) system having a plurality of gradient coils positioned about a bore of a magnet, and an RF transceiver system and an RF switch controlled by a pulse module to transmit RF signals to an RF coil assembly comprising at least one RF transmit coil and comprising multiple coils to acquire MR images. The MRI apparatus also has a computer programmed to excite multiple pencil regions by use of an under-sampled echo-planar excitation trajectory and acquire MR signals simultaneously on multiple channels of the RF coil assembly. The computer is also programmed to separate contributions from the various multiple pencil regions by use of parallel imaging reconstruction.
摘要翻译： 用于加速MR成像的系统和方法包括具有围绕磁体的孔定位的多个梯度线圈的磁共振成像（MRI）系统，以及RF收发器系统和由脉冲模块控制的RF开关以将RF信号传输到 RF线圈组件，其包括至少一个RF发射线圈并且包括多个线圈以获取MR图像。 MRI装置还具有被编程为通过使用欠采样的回波平面激发轨迹激发多个铅笔区域并且在RF线圈组件的多个通道上同时获取MR信号的计算机。 计算机还被编程为通过使用并行成像重建来分离来自各种多个铅笔区域的贡献。
-
公开(公告)号：US07577103B2
公开(公告)日：2009-08-18
申请号：US11169915
申请日：2005-06-30
IPC分类号： H04L12/26
CPC分类号： H04L43/0817 , H04W24/00 , H04W24/02
摘要： In the method, system conditions may be monitored for at least a first time period within a periodic time interval, and network parameters for optimizing a wireless network may be determined. The determined network parameters may be implemented during a first time period within the at least one subsequent periodic time interval.
摘要翻译： 在该方法中，可以在周期性时间间隔内至少监视系统条件至少第一时间段，并且可以确定用于优化无线网络的网络参数。 确定的网络参数可以在至少一个后续周期时间间隔内的第一时间段期间实现。
-
公开(公告)号：US20070002759A1
公开(公告)日：2007-01-04
申请号：US11169915
申请日：2005-06-30
CPC分类号： H04L43/0817 , H04W24/00 , H04W24/02
摘要： In the method, system conditions may be monitored for at least a first time period within a periodic time interval, and network parameters for optimizing a wireless network may be determined. The determined network parameters may be implemented during a first time period within the at least one subsequent periodic time interval.
摘要翻译： 在该方法中，可以在周期性时间间隔内至少监视系统条件至少第一时间段，并且可以确定用于优化无线网络的网络参数。 确定的网络参数可以在至少一个后续周期时间间隔内的第一时间段期间实现。
-
-
-
-
-
搜索结果
16 条记录 (耗时 0.024 秒)
