公开(公告)号：US20190387243A1

公开(公告)日：2019-12-19

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: H04N19/51 ,  H04N19/517 ,  H04N19/52 ,  H04N19/176 ,  H04N19/103 ,  H04N19/50 ,  H04N19/109

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：US20190327489A1

公开(公告)日：2019-10-24

申请号：US16458633

申请日：2019-07-01

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

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：US20190238852A1

公开(公告)日：2019-08-01

申请号：US16133204

申请日：2018-09-17

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

Abstract: The present invention relates to a method offor 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 offor signaling prediction mode information, serving according to the present invention, as a method offor 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：US20190068988A1

公开(公告)日：2019-02-28

申请号：US16176715

申请日：2018-10-31

Applicant: LG Electronics Inc.

Inventor： Jae Hyun LIM ,  Seung Wook PARK ,  Jung Sun KIM ,  Yong Joon JEON ,  Joon Young PARK ,  Byeong Moon JEON

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

CPC classification number: H04N19/51 ,  H04N19/103 ,  H04N19/109 ,  H04N19/176 ,  H04N19/50 ,  H04N19/517 ,  H04N19/52 ,  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：US20180176593A1

公开(公告)日：2018-06-21

申请号：US15900081

申请日：2018-02-20

Applicant: LG Electronics Inc.

Inventor： Joon Young PARK ,  Seung Wook PARK ,  Jae Hyun LIM ,  Jung Sun KIM ,  Young Hee CHOI ,  Byeong Moon JEON ,  Yong Joon JEON

IPC: H04N19/56 ,  H04N19/61 ,  H04N19/513 ,  H04N19/52 ,  H04N19/107 ,  H04N19/176 ,  H04N19/139 ,  H04N19/124 ,  H04N19/117 ,  H04N19/44

Abstract: A method for selecting a motion vector predictor is provided. The method of selecting a motion vector predictor includes the steps of selecting motion vector predictor candidates for a current block and selecting a motion vector predictor of the current block out of the motion vector predictor candidates, wherein the motion vector predictor candidates for the current block include a motion vector of a first candidate block which is first searched for as an available block out of left neighboring blocks of the current block and a motion vector of a second candidate block which is first searched for as an available block out of upper neighboring blocks of the current block.

公开(公告)号：US20180054618A1

公开(公告)日：2018-02-22

申请号：US15797895

申请日：2017-10-30

Applicant: LG ELECTRONICS INC.

Inventor： Yong Joon JEON ,  Seung Wook PARK ,  Jung Sun KIM ,  Joon Young PARK ,  Byeong Moon JEON ,  Jae Hyun LIM

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

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：US20170078674A1

公开(公告)日：2017-03-16

申请号：US15344118

申请日：2016-11-04

Applicant: LG ELECTRONICS INC.

Inventor： Yong Joon JEON ,  Seung Wook PARK ,  Jung Sun KIM ,  Joon Young PARK ,  Byeong Moon JEON ,  Jae Hyun LIM

IPC: H04N19/159 ,  H04N19/86 ,  H04N19/593 ,  H04N19/117 ,  H04N19/176

CPC classification number: H04N19/159 ,  H04N19/00 ,  H04N19/105 ,  H04N19/117 ,  H04N19/176 ,  H04N19/593 ,  H04N19/82 ,  H04N19/86

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.

Abstract translation: 提供了一种帧内预测方法和使用帧内预测方法的装置。 帧内预测方法包括以下步骤：将当前预测模式导出为当前块的预测模式; 使用可用的参考样本构建当前块的相邻样本; 过滤可用的参考样本; 以及基于所过滤的可用参考样本生成当前块的预测样本。 滤波步骤包括使用位于当前预测模式的预测方向的可用参考样本和与当前预测模式的预测方向相邻的预定数量的可用参考样本来执行滤波。

公开(公告)号：US20250097459A1

公开(公告)日：2025-03-20

申请号：US18971605

申请日：2024-12-06

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

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：US20220182640A1

公开(公告)日：2022-06-09

申请号：US17681661

申请日：2022-02-25

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 performing 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：US20220038742A1

公开(公告)日：2022-02-03

申请号：US17506087

申请日：2021-10-20

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.