公开(公告)号：US20180184082A1

公开(公告)日：2018-06-28

申请号：US15736415

申请日：2016-06-14

Applicant: LG ELECTRONICS INC.

Inventor： Sunmi YOO ,  Jin HEO ,  Yongjoon JEON ,  Eunyong SON ,  Junghak NAM

IPC: H04N19/105 ,  H04N19/159 ,  H04N19/107 ,  H04N19/176

CPC classification number: H04N19/105 ,  H04N19/107 ,  H04N19/11 ,  H04N19/159 ,  H04N19/176 ,  H04N19/593

Abstract: Disclosed are an intra prediction mode based image processing method, and an apparatus therefor. In particular, a method for processing an image on the basis of an intra prediction mode comprises the steps of: inputting, in most probable mode (MPM) candidates, intra prediction modes of a plurality of neighboring blocks which neighbor a current block, and then deriving the MPM candidates by inputting, in the MPM candidates, intra prediction modes within substitute modes consisting of a plurality of intra prediction modes, to which priorities are given, according to the priorities until the total number of MPM candidates is satisfied; deriving, from the MPM candidates, an intra prediction mode applied to the current block using an MPM index indicating a specific intra prediction mode; and generating a prediction block of the current block by applying the derived intra prediction mode.

公开(公告)号：US20180176602A1

公开(公告)日：2018-06-21

申请号：US15737157

申请日：2016-06-13

Applicant: LG Electronics Inc.

Inventor： Junghak NAM ,  Chulkeun KIM

IPC: H04N19/82 ,  H04N19/117 ,  H04N19/107 ,  H04N19/91

CPC classification number: H04N19/82 ,  H04N19/107 ,  H04N19/117 ,  H04N19/124 ,  H04N19/176 ,  H04N19/70 ,  H04N19/91 ,  H04N19/96

Abstract: Disclosed in the present invention are a method for encoding/decoding an image and a device for same. Particularly, a method for decoding an image may comprise the steps of: parsing the weight value (w) of a loop filter from a bitstream outputted from an encoder; applying the loop filter to an image obtained by using a prediction signal and a differential signal; and generating a recovered image and a reference image by performing the weighted sum of the recovered image before the loop filter is applied and the recovered image after the loop filter is applied, based on the w.

公开(公告)号：US20180176561A1

公开(公告)日：2018-06-21

申请号：US15736144

申请日：2016-02-02

Applicant: LG Electronics Inc.

Inventor： Chulkeun KIM ,  Junghak NAM

IPC: H04N19/117 ,  H04N19/82 ,  H04N19/85 ,  H04N19/176

CPC classification number: H04N19/117 ,  H04N19/176 ,  H04N19/182 ,  H04N19/82 ,  H04N19/85

Abstract: A method for filtering a reconstructed picture performed by an encoding device, according to the present invention, comprises the steps of: deriving first filter information for a target region of a reconstructed picture; selecting one among the derived first filter information and a second filter information included in the filter bank; and performing filtering on the target region in the reconstructed picture on the basis of the selected filter information, wherein, if the first filter information is selected, the filter bank is updated, and if the second filter information is selected, a filter index may be transmitted to a decoder. According to the present invention, the filtering of a reconstructed picture on the basis of the filter bank may be efficiently performed, and the amount of data allocated to the transmission/reception of filter information is reduced therethrough, consequently enabling the increase of compression and coding efficiency.

公开(公告)号：US20180131943A1

公开(公告)日：2018-05-10

申请号：US15570139

申请日：2016-04-27

Applicant: LG Electronics Inc.

Inventor： Naeri PARK ,  Seungwook PARK ,  Jaehyun LIM ,  Chulkeun KIM ,  Jungdong SEO ,  Sunmi YOO ,  Junghak NAM

IPC: H04N19/159 ,  H04N19/139 ,  H04N19/126 ,  H04N19/122 ,  H04N19/96 ,  H04N19/109

CPC classification number: H04N19/159 ,  H04N19/105 ,  H04N19/109 ,  H04N19/122 ,  H04N19/126 ,  H04N19/139 ,  H04N19/513 ,  H04N19/537 ,  H04N19/86 ,  H04N19/96

Abstract: The present invention relates to method and device for decoding a bitstream for a video signal, the method comprising the steps of: obtaining a predicted value for a current block on the basis of a moving vector of the current block; and restoring the current block on the basis of the predicted value for the current block. In case a particular condition is satisfied, the step of obtaining the predicted value for the current block comprises: obtaining of a first predicted value by applying, to an area located at a particular boundary of the current block, a motion vector of a neighboring block adjacent to the area; obtaining of a second predicted value by applying a motion vector of the current block to the area; and obtaining of a weighted sum by applying a first weight to the first predicted value and by applying a second weight to the second predicted value.

公开(公告)号：US20180124397A1

公开(公告)日：2018-05-03

申请号：US15565092

申请日：2015-11-09

Applicant: LG Electronics Inc.

Inventor： Sunmi YOO ,  Jin HEO ,  Junghak NAM ,  Jaehyun LIM ,  Yongjoon JEON

IPC: H04N19/109 ,  H04N19/107 ,  H04N19/119 ,  H04N19/96 ,  H04N19/176

CPC classification number: H04N19/109 ,  H04N19/107 ,  H04N19/119 ,  H04N19/157 ,  H04N19/176 ,  H04N19/593 ,  H04N19/70 ,  H04N19/96

Abstract: A method for decoding a video signal includes obtaining block partition information of a current coding unit; deriving an intra prediction mode of a partition block based on the block partition information; and generating a prediction signal of the partition block based on the derived intra prediction mode, and the intra prediction mode of the partition block is defined by a limited number based on a prediction direction.

公开(公告)号：US20170180755A1

公开(公告)日：2017-06-22

申请号：US15118392

申请日：2015-03-10

Applicant: LG ELECTRONICS INC.

Inventor： Sunmi YOO ,  Junghak NAM ,  Sehoon YEA

IPC: H04N19/597 ,  H04N19/513 ,  H04N19/172 ,  H04N19/176 ,  H04N19/105 ,  H04N19/139

CPC classification number: H04N19/597 ,  H04N19/105 ,  H04N19/139 ,  H04N19/172 ,  H04N19/176 ,  H04N19/30 ,  H04N19/517 ,  H04N19/521 ,  H04N2013/0085

Abstract: The present invention provides a 3D video decoding method and device. A 3D video decoding method according to the present invention comprises the steps of: determining whether to apply motion vector inheritance for inducing a motion vector of a depth picture, using motion information of a texture picture; when it is determined to apply the motion vector inheritance, inducing a current block within the depth picture to a sub-block sized depth sub-block for the motion vector inheritance; inducing a motion vector of the depth sub-block from a texture block within the texture picture corresponding to the depth sub-block; and inducing a reconstructed sample of the current block by generating a prediction sample of the depth sub-block on the basis of the motion vector of the depth sub-block.

公开(公告)号：US20170150178A1

公开(公告)日：2017-05-25

申请号：US15319335

申请日：2015-09-25

Applicant: LG ELECTRONICS INC.

Inventor： Junghak NAM ,  Sehoon YEA ,  Jungdong SEO ,  Sunmi YOO

IPC: H04N19/597 ,  H04N19/124 ,  H04N19/44 ,  H04N19/51 ,  H04N19/172

CPC classification number: H04N19/597 ,  H04N19/124 ,  H04N19/17 ,  H04N19/172 ,  H04N19/44 ,  H04N19/51

Abstract: The present invention relates to 3D video coding device and method. A decoding method, according to the present invention, provides a 3D video decoding method. A decoding method comprises the steps of: obtaining a disparity value on the basis of a reference view and a predetermined value; deriving movement information of a current block in a depth picture on the basis of the disparity value; and generating a prediction sample of the current block on the basis of the movement information, wherein the reference view is a view of a reference picture in a reference picture list. According to the present invention, even when a base view cannot be accessed, a disparity vector can be derived on the basis of an available reference view index in a decoded picture buffer (DPB), and coding efficiency can be enhanced.

公开(公告)号：US20160295240A1

公开(公告)日：2016-10-06

申请号：US15028806

申请日：2014-10-20

Applicant: LG ELECTRONICS INC.

Inventor： Taesup KIM ,  Sehoon YEA ,  Jin HEO ,  Jungdong SEO ,  Sunmi YOO ,  Junghak NAM

IPC: H04N19/597 ,  H04N19/176 ,  H04N19/513 ,  H04N19/105 ,  H04N19/139

CPC classification number: H04N19/597 ,  H04N19/105 ,  H04N19/119 ,  H04N19/137 ,  H04N19/139 ,  H04N19/176 ,  H04N19/513 ,  H04N19/521

Abstract: The present invention relates to a method for constituting a merge candidate list by using a view synthesis prediction (VSP) and the like in multi-view video coding. The method for constituting the merge candidate list according to the present invention comprises the steps of: determining a prediction mode for a current block; inducing, as a merge candidate, motion information from neighboring blocks of the current block when the prediction mode for the current block is a merge mode or a skip mode; and constituting the merge candidate list by using the motion information of the neighboring blocks and the deep parity information induced from the neighboring blocks of the current block.

Abstract translation: 本发明涉及一种通过在多视点视频编码中使用视图合成预测（VSP）等来构成合并候选列表的方法。 根据本发明的用于构成合并候选列表的方法包括以下步骤：确定当前块的预测模式; 当当前块的预测模式是合并模式或跳过模式时，将来自当前块的相邻块的运动信息作为合并候选; 并通过使用相邻块的运动信息和从当前块的相邻块引起的深奇偶校验信息来构成合并候选列表。