利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

43 条记录 (耗时 0.029 秒)

    Image compression and restoring method for binary images
    1.
    发明授权
    Image compression and restoring method for binary images 有权
    二进制图像的图像压缩和恢复方法

    公开(公告)号：US06944347B2

    公开(公告)日：2005-09-13

    申请号：US10143069

    申请日：2002-05-10

    申请人： Chul Soo Lee ,  Hyun Wook Park

    发明人： Chul Soo Lee ,  Hyun Wook Park

    IPC分类号： H04N1/415 ,  G06K9/36 ,  G06K9/46 ,  G06T5/00 ,  G06T9/00 ,  H03M7/40 ,  H04N1/41

    CPC分类号： H04N19/90 ,  H04N19/13 ,  H04N19/91

    摘要： The present invention relates to the image compression and restoring method for binary images that can be used in binary image equipment including printers.In the present invention, an image is not compressed by each pixel but by cell that combines four pixels. And each cell is compressed in two steps. In the first step, the number of black pixels contained in the cell is compressed. And in the second step, using the number of pixels the information compressed in the previous step, the exact location of pixels that constitute the cell is compressed. By doing this, the compression rate can be increased. And even when the compressed bit rows are restored in the first step, image restoration is available with just a small degradation.

    摘要翻译： 本发明涉及可用于包括打印机在内的二进制图像设备中的二进制图像的图像压缩和恢复方法。 在本发明中，图像不被每个像素压缩，而是被组合四个像素的单元压缩。 并且每个单元格分两个步骤进行压缩。 在第一步骤中，包含在单元格中的黑色像素的数量被压缩。 并且在第二步骤中，使用在前一步骤中压缩的信息的像素数，构成单元格的像素的精确位置被压缩。 通过这样做，可以提高压缩率。 即使在第一步中恢复压缩位行时，只能稍微降低图像恢复。

    Brain wave measuring method, apparatus and computer readable recording medium implemented with program for executing the method
    5.
    发明授权
    Brain wave measuring method, apparatus and computer readable recording medium implemented with program for executing the method 有权
    脑波测量方法，装置和计算机可读记录介质，用程序执行该方法

    公开(公告)号：US07778700B2

    公开(公告)日：2010-08-17

    申请号：US11745586

    申请日：2007-05-08

    申请人： Hyun Wook Park ,  Sung Suk Oh ,  Jun-Young Chung

    发明人： Hyun Wook Park ,  Sung Suk Oh ,  Jun-Young Chung

    IPC分类号： A61B5/05

    CPC分类号： A61B5/0476 ,  A61B5/04017 ,  A61B5/7203 ,  A61B5/7264

    摘要： A method for measuring a brain wave comprises extracting positive and negative peaks from an electrocardiogram (EKG) signal reflecting heartbeat information, and positive peaks from an electroencephalogram (EEG) signal reflecting heartbeat-caused noise information and brain wave information. The positive peaks of the EEG signal are classified into a first peak group and a second peak group based on the positive peaks of the EKG signal. The first peak group is affected more greatly by the heartbeat than by the brain wave, and the second peak group is affected more greatly by the brain wave than by the heartbeat. Noise of the first and second peak groups is removed from the EEG signal.

    摘要翻译： 用于测量脑波的方法包括从反映心跳信息的心电图（EKG）信号和反映心跳引起的噪声信息和脑波信息的脑电图（EEG）信号的正峰值提取正峰值和负峰值。 基于EKG信号的正峰值，将EEG信号的正峰值分为第一峰值组和第二峰值组。 第一个峰组受心跳影响比脑波大，第二峰组受脑波影响比心跳更大。 从EEG信号中去除第一和第二峰组的噪声。

    Method of reconstructing parallel magnetic resonance image using radial K-space trajectory, apparatus thereof, and computer readable recording medium recorded with program for executing the method
    6.
    发明授权
    Method of reconstructing parallel magnetic resonance image using radial K-space trajectory, apparatus thereof, and computer readable recording medium recorded with program for executing the method 有权
    使用径向K空间轨迹重建平行磁共振图像的方法及其装置以及记录有用于执行该方法的程序的计算机可读记录介质

    公开(公告)号：US07492152B2

    公开(公告)日：2009-02-17

    申请号：US11616162

    申请日：2006-12-26

    申请人： Seong Dae Yun ,  Hyun Wook Park

    发明人： Seong Dae Yun ,  Hyun Wook Park

    IPC分类号： G01V3/00

    CPC分类号： G01R33/5611 ,  G01R33/4824

    摘要： The present invention relates to a method of acquiring a parallel magnetic resonance image and a method thereof, and more particularly, to a method of acquiring a magnetic resonance image using a radial k-space trajectory, and an apparatus thereof. A method of reconstructing a parallel magnetic resonance image using a radial k-space trajectory comprises acquiring magnetic resonance data according to the radial k-space trajectory, setting a rotation relation between the radial k-space trajectory and a Cartesian k-space trajectory, and reconstructing a magnetic resonance image from the magnetic resonance data based on the rotation relation.

    摘要翻译： 本发明涉及一种获取并行磁共振图像的方法及其方法，更具体地说，涉及使用径向k空间轨迹获取磁共振图像的方法及其装置。 使用径向k空间轨迹重建平行磁共振图像的方法包括根据径向k空间轨迹获取磁共振数据，设置径向k空间轨迹与笛卡尔k空间轨迹之间的旋转关系，以及 基于旋转关系从磁共振数据重建磁共振图像。

    METHOD OF RECONSTRUCTING PARALLEL MAGNETIC RESONANCE IMAGE USING RADIAL K-SPACE TRAJECTORY, APPARATUS THEREOF, AND COMPUTER READABLE RECORDING MEDIUM RECORDED WITH PROGRAM FOR EXECUTING THE METHOD
    7.
    发明申请
    METHOD OF RECONSTRUCTING PARALLEL MAGNETIC RESONANCE IMAGE USING RADIAL K-SPACE TRAJECTORY, APPARATUS THEREOF, AND COMPUTER READABLE RECORDING MEDIUM RECORDED WITH PROGRAM FOR EXECUTING THE METHOD 有权
    使用径向K空间TRAJECTORY并行计算并行磁共振图像的方法及其方法，以及用于执行方法记录的计算机可读记录介质

    公开(公告)号：US20070164740A1

    公开(公告)日：2007-07-19

    申请号：US11616162

    申请日：2006-12-26

    申请人： Seong Dae Yun ,  Hyun Wook Park

    发明人： Seong Dae Yun ,  Hyun Wook Park

    IPC分类号： G01V3/00

    CPC分类号： G01R33/5611 ,  G01R33/4824

    摘要： The present invention relates to a method of acquiring a parallel magnetic resonance image and a method thereof, and more particularly, to a method of acquiring a magnetic resonance image using a radial k-space trajectory, and an apparatus thereof. A method of reconstructing a parallel magnetic resonance image using a radial k-space trajectory comprises acquiring magnetic resonance data according to the radial k-space trajectory, setting a rotation relation between the radial k-space trajectory and a Cartesian k-space trajectory, and reconstructing a magnetic resonance image from the magnetic resonance data based on the rotation relation.

    摘要翻译： 本发明涉及一种获取并行磁共振图像的方法及其方法，更具体地说，涉及使用径向k空间轨迹获取磁共振图像的方法及其装置。 使用径向k空间轨迹重建平行磁共振图像的方法包括根据径向k空间轨迹获取磁共振数据，设置径向k空间轨迹与笛卡尔k空间轨迹之间的旋转关系，以及 基于旋转关系从磁共振数据重建磁共振图像。