公开(公告)号：US20250168386A1

公开(公告)日：2025-05-22

申请号：US18958123

申请日：2024-11-25

Applicant: LG ELECTRONICS INC.

Inventor： Hendry HENDRY ,  Seethal PALURI ,  Seung Hwan KIM

IPC: H04N19/503 ,  H04N19/105 ,  H04N19/184 ,  H04N19/31

Abstract: An image encoding/decoding method and apparatus is provided. The image decoding method performed by the image decoding apparatus may comprise determining inter-layer direct reference and determining the number of sublayers of a current layer based on the inter-layer direct reference.

公开(公告)号：US20250150587A1

公开(公告)日：2025-05-08

申请号：US19012421

申请日：2025-01-07

Applicant: LG ELECTRONICS INC.

Inventor： Hendry HENDRY ,  Seethal PALURI ,  Seunghwan KIM

IPC: H04N19/119 ,  H04N19/174 ,  H04N19/46

Abstract: In an image decoding method performed by a decoding device according to the present disclosure, whether the number of slices included in the current picture is 1 is determined on the basis of a flag pertaining to whether or not sub-picture information is present, and a flag pertaining to whether a sub-picture includes a single slice.

公开(公告)号：US20250119564A1

公开(公告)日：2025-04-10

申请号：US18982716

申请日：2024-12-16

Applicant: LG Electronics Inc.

Inventor： Hendry HENDRY ,  Seunghwan KIM ,  Seethal PALURI

IPC: H04N19/423 ,  H04N19/172 ,  H04N19/46 ,  H04N19/70

Abstract: An image decoding method performed by a decoding device according to the present document comprises the steps of: deriving a value of a variable on the basis of whether a current picture is a first picture of a current access unit (AU) that is a coded video sequence start access unit (CVSS) AU instead of AU 0, wherein the variable indicates whether all picture storage buffers within a decoded picture buffer (DPB) are emptied without being output; updating the DPB on the basis of the variable; and decoding the current picture on the basis of the updated DPB.

公开(公告)号：US20250119530A1

公开(公告)日：2025-04-10

申请号：US18952495

申请日：2024-11-19

Applicant: LG Electronics Inc.

Inventor： Hendry HENDRY

IPC: H04N19/105 ,  H04N19/169 ,  H04N19/174 ,  H04N19/70

Abstract: According to the disclosure of the present document, on the basis of NAL unit type-associated information on whether a picture has mixed NAL unit types, NAL unit types for slices within the picture can be determined, and for the picture having the mixed NAL unit types, not only IRAP but also a form mixed with NAL units of other types can be provided.

公开(公告)号：US20250063200A1

公开(公告)日：2025-02-20

申请号：US18939910

申请日：2024-11-07

Applicant: LG Electronics Inc.

Inventor： Hendry HENDRY

IPC: H04N19/70 ,  H04N19/172 ,  H04N19/30 ,  H04N19/423

Abstract: An image decoding method performed by a decoding device according to the present document comprises the steps of: obtaining image information; and updating a decoded picture buffer (DPB) on the basis of the image information, wherein the step of obtaining the image information comprises the steps of: obtaining an output layer set (OLS) DPB parameter index for a target OLS; and obtaining DPB parameter information relating to the target OLS on the basis of the OLS DPB parameter index.

公开(公告)号：US20250063175A1

公开(公告)日：2025-02-20

申请号：US18935200

申请日：2024-11-01

Applicant: LG ELECTRONICS INC.

Inventor： Hendry HENDRY

IPC: H04N19/132 ,  G06T7/11 ,  G06T7/13 ,  H04N19/82 ,  H04N19/86 ,  H04N19/96

Abstract: A (decoded) picture may be split into subpictures/tiles. Information on the subpictures may be obtained by a decoding device, and a decoding procedure may be performed on the basis of the information on the subpictures. In addition, information on the tiles may be obtained by a decoding device, and a decoding procedure may be performed on the basis of the information on the tiles. According to embodiments of the present document, subpicture-related information and tile-related information can be efficiently signaled, and an in-loop filtering procedure can be performed on the basis of the subpicture-related information.

公开(公告)号：US20240430418A1

公开(公告)日：2024-12-26

申请号：US18828702

申请日：2024-09-09

Applicant: LG ELECTRONICS INC.

Inventor： Seethal PALURI ,  Hendry HENDRY

IPC: H04N19/117 ,  G06V10/60 ,  H04N19/132 ,  H04N19/172 ,  H04N19/186 ,  H04N19/70 ,  H04N19/82

Abstract: According to embodiment(s) of the present document, computational overhead and complexity can be reduced by using a 0th-order exponential Golomb coding scheme (ue(v)) for procedures of parsing syntax elements/information about absolute values of luma/chroma ALF filter coefficients. In addition, coding using ue(v) can be efficiently performed by fixing the range of values of the information about the absolute values of the luma/chroma ALF filter coefficients.

公开(公告)号：US20240406396A1

公开(公告)日：2024-12-05

申请号：US18736349

申请日：2024-06-06

Applicant: LG ELECTRONICS INC.

Inventor： Jie ZHAO ,  Seung Hwan KIM ,  Hendry HENDRY ,  Seethal PALURI

IPC: H04N19/124 ,  H04N19/119 ,  H04N19/176 ,  H04N19/18 ,  H04N19/186

Abstract: An image encoding/decoding method and apparatus are provided. The image decoding method performed by the image decoding apparatus, according to the present disclosure, may comprise the steps of: determining whether a color space transformation is applied to residual samples of a current block; determining quantization parameter of the current block on the basis of whether the color space transformation is applied; and determining a transformation coefficient of the current block on the basis of the quantization parameter. The step of determining the quantization parameter may be performed by limiting the range of an effective value of the quantization parameter such that a value of the quantization parameter has a value less than or equal to a predetermined upper value and greater than or equal to a predetermined lower value.

公开(公告)号：US20240397113A1

公开(公告)日：2024-11-28

申请号：US18795627

申请日：2024-08-06

Applicant: LG Electronics Inc.

Inventor： Hendry HENDRY ,  Seethal PALURI ,  Seunghwan KIM

IPC: H04N19/82 ,  H04N19/117 ,  H04N19/132 ,  H04N19/167 ,  H04N19/172 ,  H04N19/70

Abstract: A decoding method performed by a decoding apparatus, according to embodiments of the present document, may comprise the steps of: acquiring, via a bitstream, image information including residual information; generating reconstructed samples of a current picture on the basis of the residual information; and generating modified reconstructed samples by performing an in-loop filtering procedure on the reconstructed samples of the current picture, wherein whether or not the in-loop filtering procedure is performed across virtual boundaries is determined. The virtual boundaries can bring, to the decoding apparatus, advantages from a hardware perspective.

公开(公告)号：US20240397111A1

公开(公告)日：2024-11-28

申请号：US18791903

申请日：2024-08-01

Applicant: LG ELECTRONICS INC.

Inventor： Hendry HENDRY ,  Seethal PALURI ,  Seunghwan KIM

IPC: H04N19/82 ,  H04N19/103 ,  H04N19/117 ,  H04N19/132 ,  H04N19/167 ,  H04N19/176 ,  H04N19/18 ,  H04N19/61 ,  H04N19/70

Abstract: In a decoding method performed by a decoding apparatus according to embodiments of the present document, whether signaling of information related to virtual boundaries is present in a sequence parameter set (SPS) or picture header information may be determined based on a virtual boundaries enabled flag.