公开(公告)号：US20200288137A1

公开(公告)日：2020-09-10

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：US20160255361A1

公开(公告)日：2016-09-01

申请号：US15148689

申请日：2016-05-06

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 ,  H04N19/109 ,  H04N19/176

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：US20150382008A1

公开(公告)日：2015-12-31

申请号：US14848485

申请日：2015-09-09

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 ,  H04N19/109 ,  H04N19/176

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.

Abstract translation: 根据本发明，帧间预测方法包括：接收关于当前块的帧间预测的模式信息; 解码所接收的模式信息; 以及使用解码模式信息执行帧间预测。 根据本发明，可以提高图像压缩效率。

公开(公告)号：US20240283943A1

公开(公告)日：2024-08-22

申请号：US18589157

申请日：2024-02-27

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 ,  H04N19/105 ,  H04N19/117 ,  H04N19/176 ,  H04N19/593 ,  H04N19/82 ,  H04N19/86

CPC classification number: H04N19/159 ,  H04N19/00 ,  H04N19/117 ,  H04N19/176 ,  H04N19/593 ,  H04N19/86 ,  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：US20230291911A1

公开(公告)日：2023-09-14

申请号：US18142386

申请日：2023-05-02

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 ,  H04N19/176 ,  H04N19/593 ,  H04N19/117 ,  H04N19/86 ,  H04N19/00

CPC classification number: H04N19/159 ,  H04N19/00 ,  H04N19/117 ,  H04N19/176 ,  H04N19/593 ,  H04N19/86 ,  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：US20230276071A1

公开(公告)日：2023-08-31

申请号：US18142891

申请日：2023-05-03

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

CPC classification number: H04N19/593 ,  H04N19/70 ,  H04N19/11 ,  H04N19/132 ,  H04N19/186 ,  H04N19/16 ,  G06T9/004 ,  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：US20200351512A1

公开(公告)日：2020-11-05

申请号：US16930127

申请日：2020-07-15

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：US20200228829A1

公开(公告)日：2020-07-16

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: H04N19/577 ,  H04N19/11 ,  H04N19/105 ,  H04N19/159 ,  H04N19/70 ,  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：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.