公开(公告)号：US11882285B2

公开(公告)日：2024-01-23

申请号：US17424146

申请日：2019-01-23

申请人： LG ELECTRONICS INC.

发明人： Dahyun Yoon ,  Yoonjung Kim ,  Jonghun Yoo ,  Nara Lee ,  Sangheon Lee ,  Jaehyeok Lee ,  Taggun Lee ,  Heamin Lee ,  Taeil Chung

IPC分类号： H04N19/13 ,  H04N19/124 ,  H04N19/136 ,  H04N19/169 ,  H04N19/63

CPC分类号： H04N19/13 ,  H04N19/124 ,  H04N19/136 ,  H04N19/188 ,  H04N19/63

摘要： The present invention relates to a method for decoding a bitstream for a video signal including at least one precinct, and a device for same. Specifically, the present invention relates to a method, and a device for same, the method including: a step for demultiplexing packets of the current precinct among the at least one precinct into a plurality of first packets and a plurality of second packets; and a step for entropy-decoding the plurality of first packets and the plurality of second packets in parallel, wherein the plurality of first packets and the plurality of second packets are respectively entropy-decoded in parallel by a first entropy decoder engine and a second entropy decoder engine, the plurality of first packets include packet 0, packet 1, packet 4, packet 6, and packet 8, and the plurality of second packets include packet 2, packet 3, packet 5, packet 7, and packet 9.

公开(公告)号：US11418788B2

公开(公告)日：2022-08-16

申请号：US17283243

申请日：2019-01-21

申请人： LG ELECTRONICS INC.

发明人： Yoonjung Kim ,  Jonghun Yoo ,  Dahyun Yoon ,  Nara Lee ,  Sangheon Lee ,  Jaehyeok Lee ,  Taggun Lee ,  Heamin Lee ,  Taeil Chung

IPC分类号： H04N19/124 ,  H04N19/18 ,  H04N19/63 ,  H04N19/91

摘要： A method for encoding a video signal that includes determining a bit budget for a current precinct, determining a quantization parameter for the current precinct based on the determined bit budget, and determining a bit budget for sign information of the wavelet coefficient information based on that the number of significant bits of the wavelet coefficient information is greater than a truncation position. The method also includes performing quantization on the wavelet coefficient information based on that the significant bit number of the wavelet coefficient information is equal to the truncation position, such that the quantization is skipped based on that the significant bit number of the wavelet coefficient information is greater than the truncation position.