公开(公告)号：US20250106393A1

公开(公告)日：2025-03-27

申请号：US18899429

申请日：2024-09-27

Applicant: LG ELECTRONICS INC.

Inventor： Hendry TAN ,  Junghak NAM ,  Jaehyun LIM ,  Seunghwan KIM

IPC: H04N19/117 ,  H04N19/70

Abstract: An image decoding method including obtaining a neural network post-filter (NNPF) group (NNPFG) characteristics supplemental enhancement information (SEI) message specifying information related to a group of two or more NNPFs to be applied to image data; determining a grouping type of the group of the two or more NNPFs based on the message; based on the grouping type indicating that only one of the group of the two or more NNPFs is to be selected to be applied, or that the group of the two or more NNPFs are to be applied in parallel, obtaining a value corresponding to a purpose of each of the group of the two or more NNPFs; and applying at least one of the group of the two or more NNPFs to the image data based the obtained value.

公开(公告)号：US20250168411A1

公开(公告)日：2025-05-22

申请号：US19030043

申请日：2025-01-17

Applicant: LG ELECTRONICS INC.

Inventor： Hendry TAN ,  Jung Hak NAM ,  Jaehyun LIM ,  Hyeong Moon JANG ,  Seung Hwan KIM

IPC: H04N19/80 ,  H04N19/172 ,  H04N19/70

Abstract: An image encoding/decoding method, a bitstream transmission method, and a computer-readable recording medium for storing a bitstream are provided. The image decoding method according to the present disclosure is an image decoding method performed by an image decoding device, and may be an image decoding method comprising the steps of: obtaining size information from a neural-network post-filter characteristics (NNPFC) supplemental enhancement information (SEI) message; and determining the size of an output picture on the basis of the size information, wherein the size information comprises information on the numerator value of the ratio between the size of the output picture and the size of an input picture and information on the denominator value of the ratio.

公开(公告)号：US20250126242A1

公开(公告)日：2025-04-17

申请号：US18985591

申请日：2024-12-18

Applicant: LG Electronics Inc.

Inventor： Hendry TAN

IPC: H04N19/105 ,  H04N19/172 ,  H04N19/70

Abstract: A method and a device for image encoding/decoding are provided. An image decoding method according to the present disclosure may comprise the steps of: in response to a random-access request for a first picture, acquiring a second picture which is associated with the first picture and has been decoded before the first picture; and decoding the first picture by referring to the second picture, wherein the first picture is a dependent random-access point picture, and the second picture is gradual coding refresh (GDR) picture having a zero-recovery point picture.

公开(公告)号：US20250106384A1

公开(公告)日：2025-03-27

申请号：US18899462

申请日：2024-09-27

Applicant: LG ELECTRONICS INC.

Inventor： Hendry TAN ,  Junghak NAM ,  Jaehyun LIM ,  Seunghwan KIM

IPC: H04N19/105 ,  H04N19/172 ,  H04N19/70

Abstract: An image decoding method including obtaining a neural network post-filter (NNPF) group (NNPFG) characteristics (NNPFGC) supplemental enhancement information (SEI) message specifying information related to a group of two or more NNPFs to be applied to image data; obtaining a first list of output images that are output by one or more of the two or more NNPFs; obtaining a number of output images of the first list that are to be included in a final output of images; based on the obtained number being greater than zero, setting one or more indicators for the output images indicating whether each output image is to be included in the final output of images; and based on the first list and the one or more indicators, generating a second list of images that are to be output in the final output of images.