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    IMAGE CODING DEVICE AND METHOD
    3.
    发明申请
    IMAGE CODING DEVICE AND METHOD 有权

    公开(公告)号：US20230041024A1

    公开(公告)日：2023-02-09

    申请号：US17787826

    申请日：2020-12-23

    申请人： LG ELECTRONICS INC.

    发明人： Hendry HENDRY

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

    摘要： 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.

    IMAGE CODING METHOD BASED ON ENTRY POINT-RELATED INFORMATION IN VIDEO OR IMAGE CODING SYSTEM
    4.
    发明申请
    IMAGE CODING METHOD BASED ON ENTRY POINT-RELATED INFORMATION IN VIDEO OR IMAGE CODING SYSTEM 有权

    公开(公告)号：US20230032673A1

    公开(公告)日：2023-02-02

    申请号：US17772942

    申请日：2020-10-12

    申请人： LG ELECTRONICS INC.

    发明人： Hendry HENDRY ,  Seunghwan KIM

    IPC分类号： H04N19/136 ,  H04N19/174 ,  H04N19/172 ,  H04N19/46

    摘要： An image decoding method according to the present document comprises the steps of: acquiring image information through a bitstream, the image information including entry point-related information; deriving at least one entry point in the current picture on the basis of the entry point-related information; and decoding the current picture on the basis of the at least one entry point, wherein the entry point-related information includes an entry point offset presence flag, offset length information, and entry point offset information, the entry point offset presence flag being related to at least one of the number of tiles in the current picture or the number of tile columns in the current picture. Through this method, the amount of data required to be signaled for video/image coding can be reduced, and coding efficiency can be increased.

    IMAGE ENCODING/DECODING METHOD AND DEVICE ON BASIS OF WRAP-AROUND MOTION COMPENSATION, AND RECORDING MEDIUM STORING BITSTREAM
    5.
    发明申请
    IMAGE ENCODING/DECODING METHOD AND DEVICE ON BASIS OF WRAP-AROUND MOTION COMPENSATION, AND RECORDING MEDIUM STORING BITSTREAM 有权

    公开(公告)号：US20230021409A1

    公开(公告)日：2023-01-26

    申请号：US17952727

    申请日：2022-09-26

    申请人： LG Electronics Inc.

    发明人： Hendry HENDRY ,  Seethal PALURI ,  Seung Hwan KIM

    IPC分类号： H04N19/513 ,  H04N19/105 ,  H04N19/176 ,  H04N19/46

    摘要： 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.

    IMAGE ENCODING/DECODING METHOD AND DEVICE BASED ON HYBRID NAL UNIT TYPE, AND RECORDING MEDIUM FOR STORING BITSTREAM
    6.
    发明申请
    IMAGE ENCODING/DECODING METHOD AND DEVICE BASED ON HYBRID NAL UNIT TYPE, AND RECORDING MEDIUM FOR STORING BITSTREAM 有权

    公开(公告)号：US20230018478A1

    公开(公告)日：2023-01-19

    申请号：US17951581

    申请日：2022-09-23

    申请人： LG ELECTRONICS INC.

    发明人： Hendry HENDRY ,  Seung Hwan Kim

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

    摘要： 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).

    IMAGE DECODING METHOD AND DEVICE
    9.
    发明申请
    IMAGE DECODING METHOD AND DEVICE 有权

    公开(公告)号：US20220408115A1

    公开(公告)日：2022-12-22

    申请号：US17778264

    申请日：2020-12-29

    申请人： LG Electronics Inc.

    发明人： Hendry HENDRY

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

    摘要： 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.