公开(公告)号：US11825080B2

公开(公告)日：2023-11-21

申请号：US17974155

申请日：2022-10-26

Applicant: LG Electronics Inc.

Inventor： Hendry Hendry

IPC: H04N19/105 ,  H04N19/186 ,  H04N19/70 ,  H04N19/187

CPC classification number: H04N19/105 ,  H04N19/186 ,  H04N19/187 ,  H04N19/70

Abstract: An image decoding method performed by a decoding apparatus, according to the present document, comprises the steps of: deriving a multilayer output layer set (OLS) index of a target OLS in a list of multilayer OLSs; acquiring hypothetical reference decoder (HRD)-related information and decoded picture buffer (DPB)-related information for the target OLS, on the basis of the multilayer OLS index; and decoding a picture within the target OLS, on the basis of the HRD-related information and the DPB-related information, wherein the multilayer OLSs are OLSs including a plurality of layers, and the target OLS is one of the multilayer OLSs.

公开(公告)号：US11818380B2

公开(公告)日：2023-11-14

申请号：US17951581

申请日：2022-09-23

Applicant: LG ELECTRONICS INC.

Inventor： Hendry Hendry ,  Seung Hwan Kim

IPC: H04N19/46 ,  H04N19/174 ,  H04N19/169

CPC classification number: H04N19/46 ,  H04N19/174 ,  H04N19/188

Abstract: An image encoding/decoding method and apparatus are provided. The image decoding method includes obtaining, from a bitstream, network abstraction layer (NAL) unit type information of at least one NAL unit including coded image data, determining at least one NAL unit type of one or more slices in the current picture based on the obtained NAL unit type information, and decoding the current picture based on the determined NAL unit type. The current picture is determined to be a random access skipped leading (RASL) picture, based on the determined NAL unit type including a RASL picture NAL unit type (RASL_NUT). When an intra random access point (IRAP) picture associated with the RASL picture is a first picture in decoding order, the RASL picture is decoded, based on the RASL picture including one or more slices having a random access decodable leading (RADL) picture NAL unit type (RADL_NUT).

公开(公告)号：US11785245B2

公开(公告)日：2023-10-10

申请号：US17952727

申请日：2022-09-26

Applicant: LG Electronics Inc.

Inventor： Hendry Hendry ,  Seethal Paluri ,  Seung Hwan Kim

IPC: H04N19/55 ,  H04N19/513 ,  H04N19/105 ,  H04N19/176 ,  H04N19/46

CPC classification number: H04N19/513 ,  H04N19/105 ,  H04N19/176 ,  H04N19/46

Abstract: An image encoding/decoding method and apparatus are provided. An image decoding method performed by an image decoding apparatus comprises obtaining inter prediction information of a current block and wraparound information from a bitstream, and generating a prediction block of the current block based on the inter prediction information and the wraparound information. The wraparound information may comprise a first flag specifying whether wraparound motion compensation is enabled for a current picture including the current block. Based on the first flag having a predetermined value specifying that the wraparound motion compensation is enabled for the current picture, the prediction block may be generated by performing the wraparound motion compensation, and the wraparound motion compensation may be performed based on either boundaries of a current subpicture including the current block or boundaries of a reference picture of the current block, based on whether the current subpicture is independently coded or not.

公开(公告)号：US20230209098A1

公开(公告)日：2023-06-29

申请号：US18111156

申请日：2023-02-17

Applicant: LG ELECTRONICS INC.

Inventor： Jae Hyun Lim ,  Seung Wook Park ,  Yong Joon Jeon ,  Chul Keun Kim ,  Young Hee Choi ,  Jung Sun Kim ,  Nae Ri Park ,  Hendry Hendry ,  Byeong Moon Jeon ,  Joon Young Park

IPC: H04N19/91 ,  H04N19/146 ,  H04N19/52 ,  H04N19/174 ,  H04N19/154 ,  H04N19/159 ,  H04N19/184 ,  H04N19/13 ,  H04N19/70 ,  H04N19/593 ,  H04N19/463

CPC classification number: H04N19/91 ,  H04N19/146 ,  H04N19/52 ,  H04N19/174 ,  H04N19/154 ,  H04N19/159 ,  H04N19/184 ,  H04N19/13 ,  H04N19/70 ,  H04N19/593 ,  H04N19/463

Abstract: The present invention relates to an entropy encoding method, an entropy decoding method and to an apparatus using same. The entropy decoding method includes: a step of decoding a bin of a syntax element; and a step of acquiring information on the syntax element based on the decoded bin. In the step of decoding the bin, context-based decoding or bypass decoding is performed for each bin of the syntax element.

公开(公告)号：US11659191B2

公开(公告)日：2023-05-23

申请号：US17828625

申请日：2022-05-31

Applicant: LG ELECTRONICS INC.

Inventor： Hendry Hendry ,  Joonyoung Park ,  Chulkeun Kim ,  Byeongmoon Jeon ,  Jungsun Kim

IPC: H04N19/00 ,  H04N19/159 ,  H04N7/00 ,  H04N19/46 ,  H04N19/423 ,  H04N19/70 ,  H04N19/58 ,  H04N19/105 ,  H04N19/172 ,  H04N19/184

CPC classification number: H04N19/159 ,  H04N7/00 ,  H04N19/105 ,  H04N19/172 ,  H04N19/184 ,  H04N19/423 ,  H04N19/46 ,  H04N19/58 ,  H04N19/70

Abstract: An image decoding method according to the present invention includes: receiving information on a set of reference pictures for configuring a set of reference pictures of a current picture, wherein the information on the set of reference pictures includes the most significant bit (MSB) information that may calculate the MSB of the picture order count (POC) of a long-term reference picture relative to the current picture, and flag information that represents whether there is MSB information; and eliciting the set of reference pictures by using received MSB information when the flag information is 1, and performing marking on the reference picture, wherein the flag information may be 1 when a temporal sub-layer identifier is 0, and there is at least one POC value for which a remainder obtained by dividing by a maximum value MaxPicOrderCntLsb capable of being represented by the LSB is the same as the least significant bit (LSB) of the POC of the long-term reference picture, in a set of POCs of a previous picture including POC values related to the previous picture that may not be discarded without affecting whether other pictures of the same temporal layer may be decoded.

公开(公告)号：US11647181B2

公开(公告)日：2023-05-09

申请号：US17842676

申请日：2022-06-16

Applicant: LG ELECTRONICS INC.

Inventor： Seethal Paluri ,  Hendry Hendry ,  Jie Zhao ,  Seunghwan Kim

IPC: H04N19/70 ,  H04N19/174 ,  H04N19/176 ,  H04N19/105 ,  H04N19/137 ,  H04N19/46

CPC classification number: H04N19/105 ,  H04N19/137 ,  H04N19/174 ,  H04N19/176 ,  H04N19/46 ,  H04N19/70

Abstract: A video decoding method executed by a video decoding apparatus according to the present document comprises the steps of: parsing a flag associated with weighted prediction from a bitstream; on the basis of the flag, parsing a prediction weighted table syntax from the bitstream; and on the basis of the prediction weighted table syntax, executing a weighted prediction on a current block in a current picture to reconstruct the current picture, wherein on the basis of the value of the flag being 1, the prediction weighted table syntax may be parsed from a picture header of the bitstream, and on the basis of the value of the flag being 0, the prediction weighted table syntax may be parsed from a slice header of the bitstream.

公开(公告)号：US11601658B2

公开(公告)日：2023-03-07

申请号：US17708573

申请日：2022-03-30

Applicant: LG Electronics Inc.

Inventor： Hendry Hendry

IPC: H04N19/169 ,  H04N19/172 ,  H04N19/174 ,  H04N19/30 ,  H04N19/70

Abstract: An image decoding method performed by a decoding device according to the present document is characterized by comprising the steps of: acquiring a flag indicating whether a picture header (PH) network abstraction layer (NAL) unit including a PH for the current picture is present; acquiring a video coding layer (VCL) NAL unit including a slice header and slice data for the current slice of the current picture; acquiring the PH on the basis of the flag; and decoding the current picture on the basis of the PH, the slice header, and the slice data.

公开(公告)号：US20230057053A1

公开(公告)日：2023-02-23

申请号：US17784322

申请日：2020-12-10

Applicant: LG ELECTRONICS INC.

Inventor： Hendry Hendry ,  Seunghwan Kim

IPC: H04N19/136 ,  H04N19/176 ,  H04N19/46

Abstract: A video decoding method performed by a decoding device according to the present disclosure comprises the steps of: acquiring indication information indicating whether one or more tools for the current block can be applied at a picture level or slice level; determining, on the basis of the indication information, whether information related to the one or more tools is present in a picture header or a slice header; parsing the information related to the one or more tools from the picture header or the slice header on the basis of the determination result; and decoding the current block on the basis of the information related to the one or more tools.

公开(公告)号：US20220417561A1

公开(公告)日：2022-12-29

申请号：US17780294

申请日：2020-11-26

Applicant: LG ELECTRONICS INC.

Inventor： Hendry Hendry ,  Seethal Paluri ,  Seunghwan Kim

IPC: H04N19/70 ,  H04N19/174 ,  H04N19/172 ,  H04N19/107 ,  H04N19/593 ,  H04N19/503 ,  H04N19/136 ,  H04N19/119

Abstract: A video decoding method performed by a video decoding apparatus according to the present document comprises: parsing number information about the number of slices for which height is explicitly signaled in a tile of a current picture from a bitstream; parsing height information about the height of the slices for which height is explicitly signaled from the bitstream based on the number information; and decoding the current picture based on the number information and the height information.

公开(公告)号：US20220329873A1

公开(公告)日：2022-10-13

申请号：US17838062

申请日：2022-06-10

Applicant: LG ELECTRONICS INC.

Inventor： Hendry Hendry ,  Seethal Paluri ,  Seunghwan Kim

IPC: H04N19/82 ,  H04N19/156 ,  H04N19/18

Abstract: According to embodiments of the present document, the subjective/objective quality of an image can be improved through image coding on the basis of subpictures and/or virtual boundaries, and consumption of hardware resources required for coding can be reduced.