公开(公告)号：US10820013B2

公开(公告)日：2020-10-27

申请号：US16389037

申请日：2019-04-19

Applicant: LG Electronics Inc. ,  Korea Advanced Institute of Science and Technology

Inventor： Byeong Moon Jeon ,  Seung Wook Park ,  Joon Young Park ,  Jae Won Sung ,  Hyun Wook Park ,  Jee Hong Lee ,  Jin Young Lee ,  Dong San Jun ,  Yinji Piao

IPC: H04N19/55 ,  H04N19/66 ,  H04N19/52 ,  H04N19/139 ,  H04N19/176 ,  H04N19/70 ,  H04N19/147 ,  H04N19/51 ,  H04N19/513 ,  H04N19/593 ,  H04N19/11 ,  H04N19/132 ,  H04N19/182 ,  H04N19/19 ,  G06F1/00 ,  G06K9/00 ,  H04N19/00 ,  H04N19/56 ,  H04N19/80

Abstract: An apparatus for processing a video signal and method thereof are disclosed. The present invention includes receiving prediction mode information, interpolating information and a residual of a current block, reconstructing an interpolating pixel using the interpolating information and a neighbor block, and reconstructing the current block using the interpolating pixel, the prediction mode information and the residual, wherein the interpolating information is generated based on a location of the current block. According to an apparatus and method for processing a video signal, high reconstruction rate can be obtained by improving the related art method having limited intra prediction modes available for a current block located on a boundary area of a picture in encoding in a manner of reconstructing and using an interpolating pixel based on interpolating information.

公开(公告)号：US10295643B2

公开(公告)日：2019-05-21

申请号：US14804678

申请日：2015-07-21

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

Inventor： Hyun Wook Park ,  Yong Wan Lim ,  Ye Ji Han

IPC: G01R33/567 ,  G01R33/48

Abstract: A magnetic resonance imaging (MRI) apparatus and a control method thereof are provided. The MRI apparatus includes a scanner, and a controller configured to control the scanner to receive magnetic resonance (MR) signals corresponding to a magnitude of a y-axis gradient magnetic field in a respiration cycle of a patient, each of the MR signals being received at a time interval equal to a time period of the respiration cycle over a number of the received MR signals. The MRI apparatus further includes a processor configured to extract an MR signal received in a respiration condition of the patient from the received MR signals, fill a k-space with the extracted MR signal, and generate an MR image by reconstructing data of the filled k-space.

公开(公告)号：US10145923B2

公开(公告)日：2018-12-04

申请号：US13898603

申请日：2013-05-21

Applicant: Samsung Electronics Co., Ltd. ,  Korea Advanced Institute of Science and Technology

Inventor： Jae Moon Jo ,  Hyun Wook Park ,  Hyeon Seok Seo

IPC: G01R33/561 ,  G01R33/48 ,  G01R33/563 ,  G01R33/565

Abstract: A magnetic resonance imaging apparatus and a diffusion-weighted image acquiring method form a radial k-space through a radial sampling and acquire a diffusion-weighted image from the radial k-space, with the diffusion-weighted image acquiring including receiving an echo signal generated from the subject, and forming a k-space having a plurality of sampling lines by sampling the echo signal that is received, wherein the directions of the diffusion gradient magnetic fields applied at the time of forming the sampling lines that compose the k-space to cross each other at two adjacent sampling lines.

公开(公告)号：US09813702B2

公开(公告)日：2017-11-07

申请号：US14518558

申请日：2014-10-20

Applicant: LG Electronics Inc. ,  KOREA ADVANCED INSTITUTE OF SCIENCE AND TECHNOLOGY

Inventor： Byeong Moon Jeon ,  Seung Wook Park ,  Joon Young Park ,  Jae Won Sung ,  Hyun Wook Park ,  Jee Hong Lee ,  Jin Young Lee ,  Dong San Jun ,  Yinji Piao

IPC: H04N19/19 ,  H04N19/80 ,  H04N19/70 ,  H04N19/55 ,  H04N19/51 ,  G06F1/00 ,  G06K9/00 ,  H04N19/00 ,  H04N19/56 ,  H04N19/52 ,  H04N19/139 ,  H04N19/176 ,  H04N19/147 ,  H04N19/513 ,  H04N19/593 ,  H04N19/11 ,  H04N19/132 ,  H04N19/182

CPC classification number: H04N19/55 ,  G06F1/00 ,  G06K9/00 ,  H04N19/00 ,  H04N19/11 ,  H04N19/132 ,  H04N19/139 ,  H04N19/147 ,  H04N19/176 ,  H04N19/182 ,  H04N19/19 ,  H04N19/51 ,  H04N19/513 ,  H04N19/52 ,  H04N19/56 ,  H04N19/593 ,  H04N19/70 ,  H04N19/80

Abstract: The present invention is directed to a method and apparatus for decoding a bitstream for a video signal. More specifically, the present invention is directed to a method comprising determining a motion vector candidate set of a current block; obtaining motion vector indication information of the current block from the bitstream; determining a motion vector indicated by the obtained motion vector indication information from the motion vector candidate set of the current block as a predicted motion vector of the current block; and performing motion compensation on the current block based on the predicted motion vector, and an apparatus therefor.

公开(公告)号：US09291693B2

公开(公告)日：2016-03-22

申请号：US13672289

申请日：2012-11-08

Applicant: SAMSUNG ELECTRONICS CO., LTD. ,  KOREA ADVANCED INSTITUTE OF SCIENCE AND TECHNOLOGY

Inventor： Hyun Wook Park ,  Ye Ji Han

IPC: G01V3/00 ,  G01R33/565 ,  G01R33/48 ,  G01R33/56

CPC classification number: G01R33/56527 ,  G01R33/4828 ,  G01R33/5607

Abstract: The magnetic resonance imaging apparatus includes a main magnet to generate a static magnetic field in an imaging region, a gradient coil assembly to form a gradient in the static magnetic field, a radio frequency (RF) coil assembly to apply a first RF pulse and second RF pulse with respect to n (n≧2) slice regions located at different positions in the imaging region, to excite atomic nuclei of the slice regions, and a controller to control the RF coil assembly to apply a first RF pulse and second RF pulse having a first center frequency f0 to a first slice and to apply a first RF pulse having a second center frequency f0+fs1 and a second RF pulse having a third center frequency f0−fs1 to a second slice.

Abstract translation: 磁共振成像设备包括：主磁体，用于在成像区域中产生静磁场;梯度线圈组件，用于在静磁场中形成梯度;射频（RF）线圈组件，用于施加第一RF脉冲和第二 相对于位于成像区域的不同位置的n（n≥2）个切片区域的RF脉冲，以激发切片区域的原子核，以及控制器，控制RF线圈组件以施加第一RF脉冲和第二RF脉冲 具有第一中心频率f0到第一切片，并且将具有第二中心频率f0 + fs1的第一RF脉冲和具有第三中心频率f0-fs1的第二RF脉冲施加到第二切片。

公开(公告)号：US08750369B2

公开(公告)日：2014-06-10

申请号：US13914187

申请日：2013-06-10

Applicant: LG Electronics Inc. ,  Korea Advanced Institute of Science and Technology

Inventor： Byeong Moon Jeon ,  Seung Wook Park ,  Joon Young Park ,  Jae Won Sung ,  Hyun Wook Park ,  Jee Hong Lee ,  Jin Young Lee ,  Dong San Jun ,  Yinji Piao

IPC: H04N19/00 ,  G06F1/00 ,  G06K9/00 ,  H04N7/26

CPC classification number: H04N19/55 ,  G06F1/00 ,  G06K9/00 ,  H04N19/00 ,  H04N19/11 ,  H04N19/132 ,  H04N19/139 ,  H04N19/147 ,  H04N19/176 ,  H04N19/182 ,  H04N19/19 ,  H04N19/51 ,  H04N19/513 ,  H04N19/52 ,  H04N19/56 ,  H04N19/593 ,  H04N19/70 ,  H04N19/80

Abstract: The present invention includes determining a motion vector candidate set of a current block, obtaining motion vector indication information of a current block from a video signal, extracting the motion vector candidate corresponding to the motion vector indication information from the motion vector candidate set, determining a predicted motion vector of the current block based on the extracted motion vector candidate, deriving a motion vector of the current block based on the predicted motion vector and a motion vector difference of the current block, and performing motion compensation on the current block based on the derived motion vector.

Abstract translation: 本发明包括确定当前块的运动矢量候选组，从视频信号获取当前块的运动矢量指示信息，从运动矢量候选组提取与运动矢量指示信息相对应的运动矢量候选，确定 基于所提取的运动矢量候选对当前块的预测运动矢量，基于预测运动矢量导出当前块的运动矢量和当前块的运动矢量差，并且基于当前块执行运动补偿 派生运动矢量。