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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.
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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.
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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
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.
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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.
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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.
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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.
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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.
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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”.
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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.
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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.
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