公开(公告)号：US20190289326A1

公开(公告)日：2019-09-19

申请号：US16434922

申请日：2019-06-07

Applicant: LG Electronics Inc.

Inventor： Jaehyun LIM ,  Seungwook PARK ,  Yongjoon JEON ,  Jungsun KIM ,  Hendry HENDRY ,  Byeongmoon JEON ,  Joonyoung PARK ,  Chulkeun KIM ,  Naeri PARK

IPC: H04N19/593 ,  H04N19/61 ,  H04N19/44 ,  H04N19/463 ,  H04N19/11 ,  H04N19/176 ,  H04N19/426 ,  H04N19/129 ,  H04N19/625 ,  H04N19/82 ,  H04N19/117 ,  H04N19/122 ,  H04N19/124 ,  H04N19/96 ,  H04N19/13 ,  H04N19/159 ,  H04N19/174

Abstract: A method for intra prediction comprises determining a first MPM candidate corresponding to a left-side candidate block on the basis of a position of the left-side candidate block adjacent to a left side of a current block; determining a second MPM candidate corresponding to an upper-end candidate block on the basis of a position of the upper-end candidate block adjacent to an upper end of the current block; generating an MPM candidate list including a plurality of MPM candidates, on the basis of the first MPM candidate and the second MPM candidate; and determining one MPM candidate of the plurality of the MPM candidates that constitute the MPM candidate list as an intra prediction mode of the current block, and performing intra prediction for the current block on the basis of the determined intra prediction mode to generate a prediction block corresponding to the current block.

公开(公告)号：US20190166372A1

公开(公告)日：2019-05-30

申请号：US16182060

申请日：2018-11-06

Applicant: LG ELECTRONICS INC.

Inventor： Hendry HENDRY ,  Joonyoung PARK ,  Chulkeun KIM ,  Byeongmoon JEON ,  Jungsun KIM

IPC: H04N19/159 ,  H04N19/70 ,  H04N19/423 ,  H04N19/46 ,  H04N19/172 ,  H04N19/58 ,  H04N19/184 ,  H04N19/105 ,  H04N7/00

CPC classification number: H04N19/159 ,  H04N7/00 ,  H04N19/105 ,  H04N19/172 ,  H04N19/184 ,  H04N19/423 ,  H04N19/46 ,  H04N19/58 ,  H04N19/70

Abstract: An image decoding method according to the present invention includes: receiving information on a set of reference pictures for configuring a set of reference pictures of a current picture, wherein the information on the set of reference pictures includes the most significant bit (MSB) information that may calculate the MSB of the picture order count (POC) of a long-term reference picture relative to the current picture, and flag information that represents whether there is MSB information; and eliciting the set of reference pictures by using received MSB information when the flag information is 1, and performing marking on the reference picture, wherein the flag information may be 1 when a temporal sub-layer identifier is 0, and there is at least one POC value for which a remainder obtained by dividing by a maximum value MaxPicOrderCntLsb capable of being represented by the LSB is the same as the least significant bit (LSB) of the POC of the long-term reference picture, in a set of POCs of a previous picture including POC values related to the previous picture that may not be discarded without affecting whether other pictures of the same temporal layer may be decoded.

公开(公告)号：US20190124344A1

公开(公告)日：2019-04-25

申请号：US16222383

申请日：2018-12-17

Applicant: LG ELECTRONICS INC.

Inventor： Hendry HENDRY ,  Seungwook PARK ,  Byeongmoon JEON ,  Joonyoung PARK ,  Jungsun KIM ,  Sangoh JEONG ,  Chulkeun KIM

IPC: H04N19/44 ,  H04N19/503 ,  H04N19/174 ,  H04N19/68 ,  H04N19/895 ,  H04N19/43 ,  H04N19/63 ,  H04N19/59 ,  H04N19/33 ,  H04N19/593 ,  H04N19/61 ,  H04N19/70

CPC classification number: H04N19/44 ,  H04N19/174 ,  H04N19/33 ,  H04N19/43 ,  H04N19/503 ,  H04N19/59 ,  H04N19/593 ,  H04N19/61 ,  H04N19/63 ,  H04N19/68 ,  H04N19/70 ,  H04N19/895

Abstract: The present invention relates to an inter-layer prediction method and to an apparatus implementing the method. The method may comprise the steps of generating a first block constituted by the value obtained by up-sampling the reconstruction value of a reference block of a reference layer corresponding to the current block; generating a second block constituted by a prediction value derived from intra-prediction mode of the current block; and generating a prediction block of the current block by combining sample values of the first block and the second block. Thus, intra-prediction on the current layer can be performed using the intra-prediction mode information of another layer.

公开(公告)号：US20180131939A1

公开(公告)日：2018-05-10

申请号：US15860412

申请日：2018-01-02

Applicant: LG ELECTRONICS INC.

Inventor： Hendry HENDRY ,  Byeongmoon JEON ,  Yongjoon JEON ,  Seungwook PARK ,  Jungsun KIM ,  Joonyoung PARK ,  Jaehyun LIM ,  Naeri PARK ,  Chulkeun KIM

IPC: H04N19/13 ,  H04N21/6336 ,  H04N19/91 ,  H04N19/436 ,  H04N19/124

CPC classification number: H04N19/13 ,  H04N19/124 ,  H04N19/436 ,  H04N19/91 ,  H04N21/6336

Abstract: The present invention relates to video encoding and decoding method and apparatus, and a video encoding method according to the present invention comprises the steps of: entropy-encoding quantized transform information; and transmitting the entropy-encoded information as a bitstream, wherein the bitstream includes information indicating pieces of information to be parallel decoded in byte units.

公开(公告)号：US20180109803A1

公开(公告)日：2018-04-19

申请号：US15845770

申请日：2017-12-18

Applicant: LG ELECTRONICS INC.

Inventor： Hendry HENDRY ,  Yongjoon JEON ,  Chulkeun KIM ,  Jungsun KIM ,  Byeongmoon JEON ,  Joonyoung PARK

IPC: H04N19/44 ,  H04N19/58 ,  H04N19/176 ,  H04N19/587 ,  H04N19/105 ,  H04N19/70 ,  H04N19/157

CPC classification number: H04N19/44 ,  H04N19/105 ,  H04N19/157 ,  H04N19/172 ,  H04N19/174 ,  H04N19/176 ,  H04N19/463 ,  H04N19/513 ,  H04N19/523 ,  H04N19/573 ,  H04N19/58 ,  H04N19/587 ,  H04N19/70

Abstract: Disclosed is a video decoding method that decodes a bitstream, the method including receiving a picture parameter set (PPS) comprising at least one of first information indicating whether the same reference picture list is applied to slices comprised in a picture and second information indicating whether additional information on modification of the reference picture list is present, and deriving a construction of the reference picture list based on the PPS. Accordingly, there are provided a method and an apparatus for signaling by a picture whether the construction of the reference picture list is modified when constructing the reference picture list.

公开(公告)号：US20180007377A1

公开(公告)日：2018-01-04

申请号：US15707794

申请日：2017-09-18

Applicant: LG ELECTRONICS INC.

Inventor： Jungsun KIM ,  Joonyoung PARK ,  Chulkeun KIM ,  Hendry HENDRY ,  Byeongmoon JEON

IPC: H04N19/44 ,  H04N19/503

CPC classification number: H04N19/44 ,  H04N19/124 ,  H04N19/176 ,  H04N19/184 ,  H04N19/463 ,  H04N19/503 ,  H04N19/91

Abstract: A method or coding image information, according to the present invention, comprises the steps of: binarizing according to different techniques, index values of forward prediction, backward prediction, and bidirectional prediction, depending on whether the bidirectional prediction is applied when inter-predicting a current block; and entropy coding a binarized codeword, wherein whether to apply the bidirectional prediction when inter-predicting the current block can be determined on the basis of the size of the current block. As a result, provided are a method for binarizing an inter-prediction direction of a prediction unit having a specific size, and an apparatus using same.

公开(公告)号：US20170318296A1

公开(公告)日：2017-11-02

申请号：US15651178

申请日：2017-07-17

Applicant: LG Electronics Inc.

Inventor： Hendry HENDRY ,  Jungsun KIM ,  Chulkeun KIM ,  Byeongmoon JEON ,  Sangoh JEONG

IPC: H04N19/13 ,  H04N19/174 ,  H04N19/129 ,  H04N19/112 ,  H04N19/167 ,  H04N19/91 ,  H04N19/176 ,  H04N19/70 ,  H04N19/119

CPC classification number: H04N19/13 ,  H04N19/112 ,  H04N19/119 ,  H04N19/129 ,  H04N19/167 ,  H04N19/174 ,  H04N19/176 ,  H04N19/70 ,  H04N19/91

Abstract: The present invention relates to a video encoding method, to a video decoding method, and to an apparatus using same. The video encoding method according to the present invention comprises the steps of: setting a tile and a slice for the inputted current picture; performing encoding based on the tile and the slice; and a step of transmitting the encoded video information. The current picture may include one or more tiles and one or more slices. The largest coding units (hereinafter, referred to as LCUs) in the slice may be arranged based on a tile scan.

公开(公告)号：US20170142422A1

公开(公告)日：2017-05-18

申请号：US15412143

申请日：2017-01-23

Applicant: LG ELECTRONICS INC.

Inventor： Joonyoung PARK ,  Byeongmoon JEON ,  Yongjoon JEON ,  Seungwook PARK ,  Jungsun KIM ,  Jaehyun LIM ,  Hendry HENDRY ,  Naeri PARK ,  Chulkeun KIM

IPC: H04N19/159 ,  H04N19/11

CPC classification number: H04N19/159 ,  H04N19/11 ,  H04N19/176 ,  H04N19/44 ,  H04N19/593 ,  H04N19/96

Abstract: A method for decoding an image according to the present invention comprises the steps of: receiving and decoding MPM index information for indicating an MPM candidate which is to be used as an intra prediction mode of a current block; generating an MPM candidate list containing a plurality of MPM candidates for the current block; determining the MPM candidate indicated by the decoded MPM index information as the intra prediction mode of the current block, among the plurality of the MPM candidates which constitute the MPM candidate list; and generating a prediction block corresponding to the current block by performing intra prediction for the current block based on the determined intra prediction mode.

公开(公告)号：US20150373332A1

公开(公告)日：2015-12-24

申请号：US14652655

申请日：2013-12-12

Applicant: LG ELECTRONICS INC.

Inventor： Jungsun KIM ,  Joonyoung PARK ,  Chulkeun KIM ,  Hendry HENDRY ,  Byeongmoon JEON

IPC: H04N19/136 ,  H04N19/176 ,  H04N19/70 ,  H04N19/91 ,  H04N19/159 ,  H04N19/124 ,  H04N19/60

CPC classification number: H04N19/136 ,  H04N19/119 ,  H04N19/122 ,  H04N19/124 ,  H04N19/159 ,  H04N19/176 ,  H04N19/186 ,  H04N19/60 ,  H04N19/61 ,  H04N19/70 ,  H04N19/91

Abstract: A method for decoding an image, and a device using the same are disclosed. The method for decoding an image comprises the steps of: inducing a chroma component block corresponding to a luma component block on the basis of chroma format information indicating chroma component sampling corresponding to luma component sampling; dividing the chroma component block into transformation blocks of a chroma component for transformation on the basis of division information indicating whether a first block has been divided into second blocks for transformation; and acquiring residual information on the transformation blocks of the chroma component by performing at least one of inverse transformation and inverse quantization on the basis of the transformation blocks of the chroma component.

Abstract translation: 公开了一种图像解码方法及使用该方法的装置。 用于解码图像的方法包括以下步骤：基于指示对应于亮度分量采样的色度分量采样的色度格式信息，感应与亮度分量块相对应的色度分量块; 根据表示第一块是否被划分为第二块进行变换的分割信息，将色度分量块划分为色度分量的变换块，以进行变换; 以及通过基于色度分量的变换块执行逆变换和逆量化中的至少一个来获取关于色度分量的变换块的残差信息。

公开(公告)号：US20150341650A1

公开(公告)日：2015-11-26

申请号：US14793242

申请日：2015-07-07

Applicant: LG Electronics Inc.

Inventor： Hendry HENDRY ,  Joonyoung PARK ,  Yongjoon JEON ,  Byeongmoon JEON ,  Jungsun KIM ,  Jaehyun LIM ,  Chulkeun KIM ,  Naeri PARK ,  Seungwook PARK

IPC: H04N19/436 ,  H04N19/119 ,  H04N19/174

CPC classification number: H04N19/436 ,  H04N19/119 ,  H04N19/174 ,  H04N19/70

Abstract: The present invention relates to a video encoding method, a video decoding method, and a device using the same, and the video encoding method according to the present invention comprises the steps of: specifying a tile and a slice by partitioning an inputted picture; performing encoding on the basis of the tile and the slice; and transmitting the encoded video information, wherein the picture is partitioned into one or more tiles and one or more slices, and the restrictions for parallel processing can be applied to the tiles and the slices.

Abstract translation: 视频编码方法及其使用方法技术领域本发明涉及视频编码方法，视频解码方法及使用该方法的装置，根据本发明的视频编码方法包括以下步骤：通过分割输入图像来指定瓦片和切片; 基于瓦片和切片执行编码; 并且发送编码的视频信息，其中将图像划分成一个或多个图块和一个或多个切片，并且并行处理的限制可以应用于图块和切片。