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12 条记录 (耗时 0.015 秒)

    Method for generating high resolution MRI image and recording medium thereof
    4.
    发明公开
    Method for generating high resolution MRI image and recording medium thereof 审中-公开
    一种用于产生MRI图像具有高分辨率和记录介质为此方法

    公开(公告)号：EP2003463A2

    公开(公告)日：2008-12-17

    申请号：EP07014296.3

    申请日：2007-07-20

    申请人： Korea Advanced Institute of Science and Technology

    发明人： Park, Hyun Wook ,  Yun, Seong Dae

    IPC分类号： G01R33/561

    CPC分类号： G01R33/5611 ,  G01R33/4806 ,  G01R33/482 ,  G01R33/5608 ,  G01R33/5619 ,  G01R33/56308

    摘要： The present invention relates to a high-resolution magnetic resonance imaging (MRI) image generating method using a new MRI image method called a generalized series parallel imaging technique, and a recording medium thereof. In the high-resolution MRI image generating method using the generalized series parallel imaging technique according to the present invention, selecting only a predetermined low frequency band of all frequency bands, and sampling the predetermined low frequency band of all frequency bands at a lower rate than a Nyquist rate to acquire magnetic resonance data.

    摘要翻译： 本发明涉及一种高分辨率磁共振成像（MRI）图像生成方法，使用一种新的MRI图像的方法称为广义一系列平行成像技术，以及它们的介质上的记录。 比在高分辨率MRI图像生成方法，使用广义系列并行成像技术雅丁到本发明中，仅选择所有频带中的预定低频带，并以较低的速率采样的所有频带的预定低频带 奈奎斯特速率获取磁共振数据。

    Image data post-processing method for reducing quantization effect, apparatus therefor
    5.
    发明公开
    Image data post-processing method for reducing quantization effect, apparatus therefor 审中-公开
    用于减少量化效应的图像数据后处理方法及其装置

    公开(公告)号：EP1657933A1

    公开(公告)日：2006-05-17

    申请号：EP06002558.2

    申请日：1998-10-09

    申请人： SAMSUNG ELECTRONICS CO., LTD. ,  Korea Advanced Institute of Science and Technology

    发明人： Lee, Yung Lyul ,  Park, Hyun Wook

    IPC分类号： H04N7/26 ,  H04N7/30

    CPC分类号： H04N19/86 ,  H04N19/117 ,  H04N19/136 ,  H04N19/139 ,  H04N19/14 ,  H04N19/176 ,  H04N19/18 ,  H04N19/182 ,  H04N19/20 ,  H04N19/44 ,  H04N19/46 ,  H04N19/60 ,  H04N19/61 ,  H04N19/80

    摘要： An image data post-processing method for reducing quantization effect induced when image data compressed based on a block is decoded, and an apparatus therefor. The image data post-processing method includes the steps of: (a) detecting semaphore representing whether or not post-processing is required, using distribution of inverse quantization coefficients of inverse-quantized image data and a motion vector representing the difference between the blocks of a previous video object plane (VOP) and blocks of a current VOP; and (b) filtering the decoded image data corresponding to the semaphore by a predetermined method, if it is determined by checking the detected semaphore that post-processing is required. Therefore, the quantization effect can be reduced by using the semaphore and an adaptive filter, and the amount of computation for filtering is also reduced. Also, the complexity of the hardware is reduced by a parallel process without multiplication and division.

    摘要翻译： 一种用于减少当基于块压缩的图像数据被解码时引起的量化效应的图像数据后处理方法及其装置。 该图像数据后处理方法包括以下步骤：（a）使用逆量化图像数据的逆量化系数的分布和表示反量化图像数据的块间差的运动矢量，检测表示是否需要后处理的信号量 先前的视频对象平面（VOP）和当前VOP的块; 和（b）如果通过检查检测到的信号量确定需要后处理，则通过预定方法过滤与信号量对应的解码图像数据。 因此，通过使用信号量和自适应滤波器可以减少量化效应，并且滤波的计算量也减少了。 而且，硬件的复杂性通过没有乘法和除法的并行处理来减少。

    Parallel magnetic resonance image reconstruction using filter banks based on low-frequency k-space signals
    6.
    发明公开
    Parallel magnetic resonance image reconstruction using filter banks based on low-frequency k-space signals 审中-公开
    平行磁铁矿石 - Bildrekonstruktion unter Verwendung vonFilterbänkenbasierend auf niederfrequenten k-Raumsignalen

    公开(公告)号：EP2869079A1

    公开(公告)日：2015-05-06

    申请号：EP14170059.1

    申请日：2014-05-27

    申请人： Korea Advanced Institute of Science and Technology

    发明人： Park, Hyun Wook ,  Chung, Jun Young ,  Kim, Dong Chan ,  Choi, Joon Sung ,  Han, Ye ji

    IPC分类号： G01R33/561

    CPC分类号： G06T5/001 ,  G01R33/5611 ,  G06T7/0012

    摘要： A method for a parallel image reconstruction is disclosed. The method includes (a) acquiring image information by channel via parallel coils in a magnetic resonance imaging (MRI) scanner; (b) extracting low-frequency signals from the image information; (c) reconstructing low-frequency images from the low-frequency signals; (d) generating filter banks by using the low-frequency images; and (f) reconstructing a final image by using the filter banks. The generating of the filter banks includes separately generating low-frequency image information for reconstruction of magnitude information and low-frequency image information for reconstruction of phase information, and then separately generating a filter for reconstruction of the magnitude information and a filter for reconstruction of the phase information.

    摘要翻译： 公开了一种并行图像重构的方法。 该方法包括（a）通过磁共振成像（MRI）扫描仪中的并行线圈通过信道获取图像信息; （b）从图像信息中提取低频信号; （c）从低频信号重建低频图像; （d）使用低频图像生成滤波器组; 和（f）通过使用滤波器组来重构最终图像。 滤波器组的产生包括分别产生用于重建幅度信息的低频图像信息和用于重建相位信息的低频图像信息，然后分别生成用于重建幅度信息的滤波器和用于重构相位信息的滤波器 相位信息。

    Method for transmitting uplink acknowledgement signals
    9.
    发明公开
    Method for transmitting uplink acknowledgement signals 有权
    Verfahren zum Senden von Uplink-Bestätigungssignalen

    公开(公告)号：EP2037616A2

    公开(公告)日：2009-03-18

    申请号：EP08016014.6

    申请日：2008-09-11

    申请人： LG Electronics Inc.

    发明人： Lee, Dae Won ,  Kim, Bong Hoe ,  Yun, Young Woo ,  Kim, Ki Jun ,  Roh, Dong Wook ,  Kim, Hak-Seong ,  Park, Hyun Wook

    IPC分类号： H04L1/16

    CPC分类号： H04L5/0055 ,  H04L1/0081 ,  H04L1/1664 ,  H04L1/1671 ,  H04L1/1861 ,  H04L5/0007 ,  H04L5/0053 ,  H04L5/0057

    摘要： A method for transmitting uplink signals, which include ACK/NACK signals, control signals other than the ACK/NACK signals, and data signals, is disclosed. The method comprises serially multiplexing the control signals and the data signals; sequentially mapping the multiplexed signals within a specific resource region in accordance with a time-first mapping method, the specific resource region including a plurality of symbols and a plurality of virtual subcarriers; and arranging the ACK/NACK signals at both symbols near symbols to which a reference signal of the plurality of symbols is transmitted. Thus, the uplink signals can be transmitted to improve receiving reliability of signals having high priority.

    摘要翻译： 公开了一种用于发送包括ACK / NACK信号的上行链路信号，除了ACK / NACK信号以外的控制信号和数据信号的方法。 该方法包括串行多路复用控制信号和数据信号; 根据时间优先映射方法顺序地映射特定资源区域内的多路复用信号，该特定资源区域包括多个符号和多个虚拟子载波; 以及在发送多个符号的参考信号的符号附近的两个符号处布置ACK / NACK信号。 因此，可以发送上行链路信号以提高具有高优先级的信号的接收可靠性。

    Method for transmitting uplink signals
    10.
    发明公开
    Method for transmitting uplink signals 审中-公开
    Verfahren zum Senden von Uplink-Signalen

    公开(公告)号：EP2723011A2

    公开(公告)日：2014-04-23

    申请号：EP13181401.4

    申请日：2008-09-11

    申请人： LG Electronics, Inc.

    发明人： Lee, Dae Won ,  Kim, Bong Hoe ,  Yun, Young Woo ,  Kim, Ki Jun ,  Roh, Dong Wook ,  Kim, Hak-Seong ,  Park, Hyun Wook

    IPC分类号： H04L1/00 ,  H04L1/16

    摘要： A method for transmitting uplink signals including ACK/NACK signals, control signals other than the ACK/NACK signals, and data signals in a mobile communication system where reference signals are transmitted through first specific symbols in a resource region consisting of a plurality of symbols and a plurality of virtual subcarriers, the method characterized by comprising multiplexing said control signals and said data signals among said uplink signals; mapping said multiplexed signals to the resource region; mapping said ACK/NACK signals among said uplink signals to second specific symbols adjacent to said first specific symbols by overwriting a part of said multiplexed signals mapped to the second specific symbols; and transmitting said uplink signals.

    摘要翻译： 一种在包括ACK / NACK信号的上行链路信号，除了ACK / NACK信号之外的控制信号和数据信号的方法中，在移动通信系统中，参考信号通过第一特定符号在由多个符号组成的资源区域中发送， 多个虚拟子载波，所述方法的特征在于包括在所述上行链路信号中复用所述控制信号和所述数据信号; 将所述复用的信号映射到所述资源区域; 通过重写映射到第二特定符号的所述复用信号的一部分，将所述上行链路信号中的所述ACK / NACK信号映射到与所述第一特定符号相邻的第二特定符号; 并发送所述上行链路信号。