公开(公告)号：US11284081B2

公开(公告)日：2022-03-22

申请号：US17190146

申请日：2021-03-02

Applicant: LG Electronics Inc.

Inventor： Jae Hyun Lim ,  Seung Wook Park ,  Jung Sun Kim ,  Yong Joon Jeon ,  Joon Young Park ,  Byeong Moon Jeon

IPC: H04N19/132 ,  H04N19/13 ,  H04N19/91 ,  H04N19/46 ,  H04N19/124 ,  H04N19/159 ,  H04N19/176 ,  H04N19/513 ,  H04N19/61 ,  H04N19/64 ,  H04N19/82

Abstract: The present invention relates to a method offer signaling information on a prediction mode and to a method of for decoding image information using same. According to the present invention, the method offer signaling prediction mode information, serving according to the present invention, as a method offer signaling image information, includes performing prediction on a current block and signaling the prediction-type information applied to the current block. The signaling of the information includes joint-coding and components of signaling information components constituting the prediction-type information. According to the present invention, overhead may be reduced when information on a prediction is signaled.

公开(公告)号：US11190795B2

公开(公告)日：2021-11-30

申请号：US16820937

申请日：2020-03-17

Applicant: LG Electronics Inc.

Inventor： Seung Wook Park ,  Jung Sun Kim ,  Young Hee Choi ,  Byeong Moon Jeon ,  Joon Young Park

IPC: H04N19/513 ,  H04N19/176 ,  H04N19/70 ,  H04N19/46 ,  H04N19/61 ,  H04N19/132 ,  H04N19/44 ,  H04N19/573

Abstract: A method of processing a video signal is disclosed. The present invention includes obtaining a current macroblock type, obtaining skip or direct mode indication information on a partition of the current macroblock according to the current macroblock type, deriving a motion vector of the partition according to the skip or direct mode indication information, and predicting a pixel value of the partition using the motion vector. Accordingly, the present invention obtains a pixel value of a reference block close to an original video using a motion vector, thereby enhancing a reconstruction ratio of the macroblock. As a macroblock uses skip or direct prediction indication information, it is unnecessary to separately code skip mode indication information and direct mode indication information on the macroblock, whereby an information size to be coded can be reduced.

公开(公告)号：US11128886B2

公开(公告)日：2021-09-21

申请号：US16694784

申请日：2019-11-25

Applicant: LG Electronics Inc.

Inventor： Seung Wook Park ,  Jae Hyun Lim ,  Jung Sun Kim ,  Joon Young Park ,  Young Hee Choi ,  Byeong Moon Jeon ,  Yong Joon Jeon

IPC: H04N19/513 ,  H04N19/52

Abstract: A method for setting the motion vector list and the apparatus using the same may include determining the presence of a first motion vector or a second motion vector by a sequential determination process in a first spatial candidate prediction group; and setting the first motion vector or the second motion vector produced through the sequential determination process as the candidate prediction motion vector. Thus, the encoding/decoding time and the complexity can be reduced by restricting the scaling number in a process for scanning the candidate prediction motion vector.

公开(公告)号：US11006145B2

公开(公告)日：2021-05-11

申请号：US16814649

申请日：2020-03-10

Applicant: LG Electronics Inc.

Inventor： Yong Joon Jeon ,  Seung Wook Park ,  Jae Hyun Lim ,  Jung Sun Kim ,  Joon Young Park ,  Young Hee Choi ,  Jae Won Sung ,  Byeong Moon Jeon

IPC: H04N19/105 ,  H04N19/159 ,  H04N19/70 ,  H04N19/577 ,  H04N19/11 ,  H04N19/593 ,  H04N19/182 ,  H04N19/80

Abstract: An intra prediction method and a device using the intra prediction method are provided. The intra prediction method using a DC mode includes setting a bottom-right pixel to a DC-predicted value, interpolating the bottom-right pixel and an n-th top reference pixel to derive predicted values of an n-th column and interpolating the bottom-right pixel and an n-th left reference pixel to derive predicted values of an n-row, and performing bidirectional linear interpolation to derive predicted values of pixels included in a prediction unit other than the n-th row and the n-th column.

公开(公告)号：US10972750B2

公开(公告)日：2021-04-06

申请号：US16839470

申请日：2020-04-03

Applicant: LG Electronics Inc.

Inventor： Yong Joon Jeon ,  Seung Wook Park ,  Jae Hyun Lim ,  Jung Sun Kim ,  Joon Young Park ,  Young Hee Choi ,  Jae Won Sung ,  Byeong Moon Jeon

IPC: H04N19/593 ,  H04N19/70 ,  H04N19/11 ,  H04N19/132 ,  H04N19/186 ,  H04N19/16 ,  G06T9/00 ,  H04N19/136 ,  H04N19/176 ,  H04N19/423 ,  H04N19/44

Abstract: Disclosed are an intra prediction method of a chrominance block using a luminance sample and an apparatus using the same. An image decoding method comprises the steps of: calculating an intra prediction mode of a chrominance block on the basis of an LM mapping table when the chrominance block uses an LM; and generating a prediction block for the chrominance block on the basis of the calculated intra prediction mode of the chrominance block. When intra prediction mode information of chrominance blocks are decoded, mutually different tables are used depending on whether or not an LM is used, so that encoding and decoding can be performed without an unnecessary waste of bits.

公开(公告)号：US10972736B2

公开(公告)日：2021-04-06

申请号：US16882045

申请日：2020-05-22

Applicant: LG Electronics Inc.

Inventor： Jae Hyun Lim ,  Seung Wook Park ,  Jung Sun Kim ,  Yong Joon Jeon ,  Joon Young Park ,  Byeong Moon Jeon

IPC: H04N19/132 ,  H04N19/13 ,  H04N19/91 ,  H04N19/46 ,  H04N19/124 ,  H04N19/159 ,  H04N19/176 ,  H04N19/513 ,  H04N19/61 ,  H04N19/64 ,  H04N19/82

Abstract: The present invention relates to a method of for signaling information on a prediction mode and to a method of for decoding image information using same. A According to the present invention, the method of for signaling prediction mode information, serving according to the present invention, as a method of for signaling image information, includes performingperforming prediction on a current block and signaling the prediction-type information applied to the current block. The signaling of the information includes joint-coding and components of signaling information components constituting the prediction-type information. According to the present invention, overhead may be reduced when information on a prediction is signaled.

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：US10785487B2

公开(公告)日：2020-09-22

申请号：US16191026

申请日：2018-11-14

Applicant: LG ELECTRONICS INC.

Inventor： Yong Joon Jeon ,  Seung Wook Park ,  Jung Sun Kim ,  Joon Young Park ,  Byeong Moon Jeon ,  Jae Hyun Lim

IPC: G06K9/36 ,  H04N19/159 ,  H04N19/176 ,  H04N19/593 ,  H04N19/117 ,  H04N19/86 ,  H04N19/00 ,  H04N19/82 ,  H04N19/105

Abstract: An intra prediction method and a device using the intra prediction method are provided. The intra prediction method includes the steps of: deriving a current prediction mode as a prediction mode of a current block; constructing neighboring samples of the current block with available reference samples; filtering the available reference samples; and generating predicted samples of the current block on the basis of the filtered available reference samples. The filtering step includes performing the filtering using the available reference sample located in the prediction direction of the current prediction mode and a predetermined number of available reference samples neighboring to the prediction direction of the current prediction mode.

公开(公告)号：US10757436B2

公开(公告)日：2020-08-25

申请号：US16552680

申请日：2019-08-27

Applicant: LG Electronics Inc.

Inventor： Jae Hyun Lim ,  Seung Wook Park ,  Jung Sun Kim ,  Yong Joon Jeon ,  Joon Young Park ,  Byeong Moon Jeon

IPC: H04N11/02 ,  H04N19/51 ,  H04N19/517 ,  H04N19/52 ,  H04N19/176 ,  H04N19/103 ,  H04N19/50 ,  H04N19/109 ,  H04N19/82

Abstract: According to the present invention, an inter-prediction method includes: receiving mode information on the inter-prediction of a current block; decoding the received mode information; and performing inter-prediction using the decoded mode information. According to the present invention, image compression efficiency may be improved.

公开(公告)号：US10547837B2

公开(公告)日：2020-01-28

申请号：US16113730

申请日：2018-08-27

Applicant: LG ELECTRONICS INC.

Inventor： Seung Wook Park ,  Jae Hyun Lim ,  Jung Sun Kim ,  Joon Young Park ,  Young Hee Choi ,  Byeong Moon Jeon ,  Yong Joon Jeon

IPC: H04N19/117 ,  H04N19/176 ,  H04N19/82 ,  H04N19/13 ,  H04N19/139 ,  H04N19/14 ,  H04N19/91 ,  H04N19/186 ,  H04N19/70

Abstract: The present invention relates to an image information encoding and decoding method and a device for same. One embodiment of an image information encoding method according to the present invention, as an image information encoding method according to another embodiment of the present invention, includes the steps of: generating a restore block; applying a deblocking filter on the restore block; applying a Sample Adaptive Offset (SAO) on the restore block having the deblocking filter applied thereon; and transmitting information on the SAO application. During the applying of the SAO, the SAO is applied to chroma pixels, and during the transmitting of the information, in addition to information on whether the SAO is applied on the chroma pixels, at least one of area information, division information on the SAO coverage area, SAO type information, and SAO offset information is transmitted.