公开(公告)号：US20160173903A1

公开(公告)日：2016-06-16

申请号：US14904638

申请日：2014-07-18

Applicant: LG ELECTRONICS INC.

Inventor： Taesup KIM ,  Sunmi YOO ,  Sehoon YEA

IPC: H04N19/52 ,  H04N19/44 ,  H04N19/136 ,  H04N19/176

CPC classification number: H04N19/52 ,  H04N19/136 ,  H04N19/176 ,  H04N19/44 ,  H04N19/597

Abstract: The present invention relates to a method and an apparatus for processing a video signal. The present invention can acquire an inter-view motion vector of a current block, acquire a first corresponding block by using the inter-view motion vector, identify a prediction method of the first corresponding block, acquire a second corresponding block when the first corresponding block is not coded by a time inter prediction, acquire a time motion vector of the second corresponding block, acquire a time motion vector of the current block by using the time motion vector of the second corresponding block, and decode the current block by using the time motion vector of the current block.

Abstract translation: 本发明涉及一种用于处理视频信号的方法和装置。 本发明可以获取当前块的视角间运动矢量，通过使用视角间运动矢量获取第一对应块，识别第一对应块的预测方法，当第一对应块 未被时间帧间预测编码，获取第二对应块的时间运动矢量，通过使用第二对应块的时间运动矢量获取当前块的时间运动矢量，并通过使用时间来解码当前块 当前块的运动矢量。

公开(公告)号：US20160165259A1

公开(公告)日：2016-06-09

申请号：US14903920

申请日：2014-07-18

Applicant: LG ELECTRONICS INC.

Inventor： Junghak NAM ,  Sehoon YEA ,  Taesup KIM ,  Sunmi YOO ,  Jiwook JUNG ,  Jin HEO

IPC: H04N19/52 ,  H04N19/176 ,  H04N19/136

CPC classification number: H04N19/52 ,  H04N19/136 ,  H04N19/176 ,  H04N19/533 ,  H04N19/597

Abstract: The present invention relates to a method and an apparatus for processing a video signal, capable of: obtaining a temporary inter-view motion vector corresponding to a first unit; obtaining virtual depth information corresponding to the first unit by using the temporary inter-view motion vector; obtaining an inter-view motion vector corresponding to the first unit by using the virtual depth information corresponding to the first unit; and updating the inter-view motion vector corresponding to the first unit.

Abstract translation: 本发明涉及一种用于处理视频信号的方法和装置，其能够：获得对应于第一单元的临时视角间运动矢量; 通过使用临时的视角间运动矢量来获得与第一单元相对应的虚拟深度信息; 通过使用与第一单元对应的虚拟深度信息来获得与第一单元相对应的视角间运动矢量; 以及更新与第一单元相对应的视角间运动矢量。

公开(公告)号：US20250080754A1

公开(公告)日：2025-03-06

申请号：US18293202

申请日：2022-08-18

Applicant: LG Electronics Inc.

Inventor： Jangwon CHOI ,  Jaehyun LIM ,  Nae Ri PARK ,  Sunmi YOO ,  Jung Hak NAM ,  Hyeong Moon JANG

IPC: H04N19/159 ,  H04N19/105 ,  H04N19/117 ,  H04N19/176

Abstract: Provided are an image encoding/decoding method and apparatus. An image decoding method performed by an image decoding apparatus may comprise determining an intra prediction mode of a current block, performing planar intra prediction based on the intra prediction mode being a planar prediction mode and obtaining a reconstructed sample of the current block based on a prediction sample obtained based on the planar intra prediction. The performing the planar intra prediction may comprise applying filtering to an intra prediction reference sample of the current block.

公开(公告)号：US20250080720A1

公开(公告)日：2025-03-06

申请号：US18726662

申请日：2022-12-28

Applicant: LG Electronics Inc.

Inventor： Naeri PARK ,  Jaehyun LIM ,  Sunmi YOO ,  Junghak NAM ,  Hyeongmoon JANG ,  Jangwon CHOI

IPC: H04N19/105 ,  H04N19/159 ,  H04N19/176 ,  H04N19/70

Abstract: An image encoding/decoding method and device according to the present disclosure can generate a candidate list of a current block, add an average candidate to the candidate list of the current block, and perform inter-prediction on the current block on the basis of the candidate list including the average candidate. Here, the candidate list includes a plurality of affine candidates, the plurality of affine candidates include at least one from among an inherited candidate, a constructed candidate, and a history-based candidate, and the average candidate can be generated on the basis of two affine candidates selected according to a predetermined priority from the candidate list.

公开(公告)号：US20250071285A1

公开(公告)日：2025-02-27

申请号：US18932879

申请日：2024-10-31

Applicant: LG Electronics Inc.

Inventor： Sunmi YOO ,  Jungah CHOI ,  Jangwon CHOI

IPC: H04N19/132 ,  H04N19/176 ,  H04N19/18 ,  H04N19/46 ,  H04N19/70

Abstract: According to disclosures of the present document, dependency conditions can defined for effectively parsing/signaling syntax elements having dependency to transform skip- and/or palette coding-related data, and, on the basis of the dependency conditions, whether or not to parse the transform skip- and/or palette coding-related data can be determined. As a result, bits necessary to be signaled for video/image coding can be reduced and coding efficiency can be improved.

公开(公告)号：US20250063179A1

公开(公告)日：2025-02-20

申请号：US18724568

申请日：2022-12-30

Applicant: LG ELECTRONICS INC.

Inventor： Jangwon CHOI ,  Jaehyun LIM ,  Sunmi YOO ,  Jungah CHOI

IPC: H04N19/159 ,  H04N19/132 ,  H04N19/186 ,  H04N19/196

Abstract: Provided are an image encoding/decoding method and apparatus. An image decoding method may comprise deriving chroma reference samples located around a chroma block and luma reference samples corresponding to the chroma reference samples based on an intra prediction mode of the chroma block being a cross-component linear model (CCLM) mode, deriving CCLM parameters based on the chroma reference samples and the luma reference samples, and generating a prediction sample of the chroma block based on the CCLM parameters. The chroma reference samples may be obtained from two or more chroma reference lines adjacent to the chroma block.

公开(公告)号：US20250008111A1

公开(公告)日：2025-01-02

申请号：US18703583

申请日：2022-10-18

Applicant: LG Electronics Inc.

Inventor： Sunmi YOO ,  Jungah CHOI ,  Jangwon CHOI

IPC: H04N19/159 ,  H04N19/129 ,  H04N19/172 ,  H04N19/176 ,  H04N19/593 ,  H04N19/70

Abstract: An image decoding method performed by a decoding apparatus, according to the present disclosure, comprises the steps of: selecting, from among residual coefficients of a current block, specific residual coefficients for sine prediction in a scan order; predicting sines for the specific residual coefficients; deriving residual samples of the current block on the basis of the predicted sines; and generating a reconstructed picture on the basis of the residual samples, wherein the scan order is derived on the basis of an intra prediction mode which has been applied to the current block.

公开(公告)号：US20240406437A1

公开(公告)日：2024-12-05

申请号：US18698326

申请日：2022-10-04

Applicant: LG ELECTRONICS INC.

Inventor： Jung Hak NAM ,  Sunmi YOO ,  Jaehyun LIM ,  Seung Hwan KIM

IPC: H04N19/59 ,  H04N19/124 ,  H04N19/159

Abstract: An image encoding/decoding method and apparatus are provided. The image decoding method performed by the image decoding apparatus may comprise deriving a reference picture for inter prediction of a current picture, deriving a resolution ratio between the reference picture and the current picture, and modifying a resolution of the reference picture based on the resolution ratio. The resolution ratio may be derived based on resolution index information of a bitstream

公开(公告)号：US20240283936A1

公开(公告)日：2024-08-22

申请号：US18569068

申请日：2022-07-01

Applicant: LG Electronics Inc.

Inventor： Jangwon CHOI ,  Jaehyun LIM ,  Sunmi YOO ,  Jungah CHOI

IPC: H04N19/132 ,  H04N19/136 ,  H04N19/186 ,  H04N19/70

CPC classification number: H04N19/132 ,  H04N19/136 ,  H04N19/186 ,  H04N19/70

Abstract: Provided are an image encoding/decoding method, a bitstream transmission method, and a computer-readable recording medium which stores a bitstream. An image decoding method according to the present disclosure may be an image decoding method performed by an image decoding device, the method comprising the steps of: determining whether a cross component sample adaptive offset (CC-SAO) is activated, on the basis of a value of a first syntax element; deriving collocated luma samples and collocated chroma samples corresponding to each other from reconstructed samples on the basis of a chroma format of the reconstructed samples, on the basis of the value of the first syntax element specifying that the CC-SAO is activated; and determining an offset to be applied to the reconstructed samples on the basis of the collocated luma samples and the collocated chroma samples.

公开(公告)号：US20240259594A1

公开(公告)日：2024-08-01

申请号：US18627121

申请日：2024-04-04

Applicant: LG Electronics Inc.

Inventor： Sunmi YOO ,  Junghak NAM ,  Jungah CHOI

IPC: H04N19/593 ,  H04N19/11 ,  H04N19/132 ,  H04N19/136 ,  H04N19/176 ,  H04N19/70

CPC classification number: H04N19/593 ,  H04N19/11 ,  H04N19/132 ,  H04N19/136 ,  H04N19/176 ,  H04N19/70

Abstract: An image decoding method performed by a decoding apparatus, according to the present document, comprises the steps of: acquiring image information including a block-based delta pulse code modulation (BDPCM) constraint flag indicating whether or not BDPCM is constrained with respect to an image; acquiring BDPCM-associated information regarding a current block on the basis of the BDPCM constraint flag; and generating reconstructed samples for the current block on the basis of the BDPCM-associated information.