公开(公告)号：US12267492B2

公开(公告)日：2025-04-01

申请号：US18399315

申请日：2023-12-28

Applicant: INTELLECTUAL DISCOVERY CO., LTD.

Inventor： Sung Chang Lim ,  Jung Won Kang ,  Ha Hyun Lee ,  Dong San Jun ,  Hyun Suk Ko ,  Jin Ho Lee ,  Hui Yong Kim

IPC: H04N19/00 ,  H04N19/105 ,  H04N19/117 ,  H04N19/132 ,  H04N19/169 ,  H04N19/176 ,  H04N19/186 ,  H04N19/82

Abstract: The present invention relates to a video encoding/decoding method and apparatus. The video decoding method according to the present invention may comprise decoding filter information on a coding unit; classifying samples in the coding unit into classes on a per block classification unit basis; and filtering the coding unit having the samples classified into the classes on a per block classification unit basis by using the filter information.

公开(公告)号：US20250047868A1

公开(公告)日：2025-02-06

申请号：US18918304

申请日：2024-10-17

Applicant: Intellectual Discovery Co., Ltd.

Inventor： Yong Jo AHN ,  Ho Chan RYU

IPC: H04N19/159 ,  H04N19/105 ,  H04N19/139 ,  H04N19/176

Abstract: The present invention provides an image encoding method and an image decoding method. The image decoding method of the present invention may comprise: obtaining intra-frame prediction information of a current block from a bitstream; inducing an intra-frame prediction mode of the current block on the basis of the intra-frame prediction information; determining a reference region for intra-frame prediction of the current block; and performing intra-frame prediction of the current block on the basis of the intra-frame prediction mode and the reference region.

公开(公告)号：US20250007973A1

公开(公告)日：2025-01-02

申请号：US18884350

申请日：2024-09-13

Applicant: Intellectual Discovery Co., Ltd.

Inventor： Jea Ho LEE

IPC: H04L65/70 ,  G10L19/00

Abstract: The present disclosure relates to an adaptive audio processing method, device, computer program, and recording medium thereof in a wireless communication system. A method of transmitting audio data from a first device to a second device in a wireless communication system, according to an embodiment of the present disclosure, may comprise: encoding first audio data in the first device, on the basis of a first codec parameter, to transmit same to the second device; transmitting, from the first device to the second device, information related to a change time point or a change position from the first codec parameter to second codec parameter; and encoding second audio data, on the basis of a second codec parameter, in the first device and transmitting same to the second device.

公开(公告)号：US20240414368A1

公开(公告)日：2024-12-12

申请号：US18804950

申请日：2024-08-14

Applicant: INTELLECTUAL DISCOVERY CO., LTD.

Inventor： Yong Jo AHN ,  Ho Chan RYU

IPC: H04N19/577 ,  H04N19/124 ,  H04N19/593 ,  H04N19/61 ,  H04N19/82 ,  H04N19/91 ,  H04N19/96

Abstract: The present invention relates to block merging according to block split among video coding techniques, and a method and an apparatus for coding and decoding a video, in which in generating and modifying a block merging list, spatial merging candidate blocks of the block merging list are changed according to a split type and order of a current coding unit.

公开(公告)号：US12143600B2

公开(公告)日：2024-11-12

申请号：US18469838

申请日：2023-09-19

Applicant: Intellectual Discovery Co., Ltd.

Inventor： Yong Jo Ahn ,  Ho Chan Ryu

IPC: H04N19/00 ,  H04N19/105 ,  H04N19/139 ,  H04N19/159 ,  H04N19/176

Abstract: The present invention provides an image encoding method and an image decoding method. The image decoding method of the present invention may comprise: obtaining intra-frame prediction information of a current block from a bitstream; inducing an intra-frame prediction mode of the current block on the basis of the intra-frame prediction information; determining a reference region for intra-frame prediction of the current block; and performing intra-frame prediction of the current block on the basis of the intra-frame prediction mode and the reference region.

公开(公告)号：US20240340409A1

公开(公告)日：2024-10-10

申请号：US18749181

申请日：2024-06-20

Applicant: INTELLECTUAL DISCOVERY CO., LTD.

Inventor： Yong Jo AHN ,  Jong Seok LEE

IPC: H04N19/105 ,  H04N19/117 ,  H04N19/132 ,  H04N19/176

CPC classification number: H04N19/105 ,  H04N19/117 ,  H04N19/132 ,  H04N19/176

Abstract: An image encoding/decoding method and device according to the present invention may comprise: acquiring information for matrix-based prediction of a current block; and generating a prediction block of the current block on the basis of the information for the matrix-based prediction.

公开(公告)号：US20240333955A1

公开(公告)日：2024-10-03

申请号：US18743832

申请日：2024-06-14

Applicant: INTELLECTUAL DISCOVERY CO, LTD.

Inventor： Yong Jo AHN ,  Ho Chan RYU

IPC: H04N19/44 ,  H04N19/136 ,  H04N19/184 ,  H04N19/60

CPC classification number: H04N19/44 ,  H04N19/136 ,  H04N19/184 ,  H04N19/45 ,  H04N19/60

Abstract: The present invention relates to a method and a device for decoding an image, which improve encoding and decoding efficiency by performing various forms of transform and inverse transform during transform and inverse transform processes of a video coding technique.

公开(公告)号：US12108053B2

公开(公告)日：2024-10-01

申请号：US18462673

申请日：2023-09-07

Applicant: Intellectual Discovery Co., Ltd.

Inventor： Yong Jo Ahn ,  Ho Chan Ryu

IPC: H04N19/159 ,  H04N19/119 ,  H04N19/176 ,  H04N19/593 ,  H04N19/70

CPC classification number: H04N19/159 ,  H04N19/119 ,  H04N19/176 ,  H04N19/593 ,  H04N19/70

Abstract: The present invention relates to an intra prediction scheme among video coding techniques and, more particularly, relates to a video decoding method and apparatus for diving a block into a plurality of sub-blocks when intra prediction is performed and sequentially performing infra prediction on each of the sub-blocks. The decoding method performed by a video decoding apparatus includes determining whether to perform sub-block-based intra prediction on a current coding unit, dividing the current coding unit into a plurality of sub-blocks, performing intra prediction on each of the sub-blocks when a result of determination of whether to perform sub-block-based intra prediction has a value of “true”, and directly performing block-based intra prediction on the current coding unit without dividing the current coding unit when the result of the determination has a value of “false”.

公开(公告)号：US20240323431A1

公开(公告)日：2024-09-26

申请号：US18734611

申请日：2024-06-05

Applicant: Intellectual Discovery Co., Ltd.

Inventor： Sung Chang LIM ,  Jung Won KANG ,  Hyun Suk KO ,  Dong San JUN ,  Jin Ho LEE ,  Ha Hyun LEE ,  Hui Yong KIM

IPC: H04N19/523 ,  H04N19/124 ,  H04N19/13 ,  H04N19/176

CPC classification number: H04N19/523 ,  H04N19/176 ,  H04N19/124 ,  H04N19/13

Abstract: Disclosed is an image encoding method. The method includes deriving a motion refinement candidate from among motion information of spatial neighboring blocks, motion information of a temporal neighboring blocks, predefined motion information, and motion information that most frequently occurs in a reference picture, performing a motion information refinement on the derived motion refinement candidate, and generating a prediction block of a current block by using the motion refinement candidate having undergone the motion information refinement.

公开(公告)号：US20240323402A1

公开(公告)日：2024-09-26

申请号：US18734677

申请日：2024-06-05

Applicant: INTELLECTUAL DISCOVERY CO., LTD.

Inventor： Yong Jo AHN

IPC: H04N19/159 ,  H04N19/105 ,  H04N19/176 ,  H04N19/52 ,  H04N19/96

CPC classification number: H04N19/159 ,  H04N19/105 ,  H04N19/176 ,  H04N19/52 ,  H04N19/96

Abstract: In an image encoding/decoding method and device according to the present invention, a candidate list for motion information prediction of a current block is generated, a control point vector of the current block is derived on the basis of the candidate list and a candidate index, a motion vector of the current block is derived on the basis of the control point vector of the current block, and inter-prediction with respect to the current block can be performed by means of the motion vector.