公开(公告)号：US20210344921A1

公开(公告)日：2021-11-04

申请号：US17283243

申请日：2019-01-21

Applicant: LG ELECTRONICS INC.

Inventor： Yoonjung KIM ,  Jonghun YOO ,  Dahyun YOON ,  Nara LEE ,  Sangheon LEE ,  Jaehyeok LEE ,  Taggun LEE ,  Heamin LEE ,  Taeil CHUNG

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

Abstract: The present invention relates to a method for encoding a video signal and apparatus therefor, and more particularly, to a method and an apparatus therefor, the method for determining, when the number of significant bits of wavelet coefficient information of a current precinct is greater than a truncation position, a bit budget for code information of the wavelet coefficient information as 1, determining, when the number of significant bits of the wavelet coefficient information is smaller than the truncation position, the bit budget of the code information of the wavelet coefficient information as 0, performing, when the number of significant bits is same as the truncation position, quantization on the wavelet coefficient information, determining, when a result of the quantization is 0, the bit budget for the code information of the wavelet coefficient information as 0, and determining, when the result of the quantization is not 0, the bit budget for the code information of the wavelet coefficient information as 1.

公开(公告)号：US20220109843A1

公开(公告)日：2022-04-07

申请号：US17424146

申请日：2019-01-23

Applicant: LG ELECTRONICS INC.

Inventor： Dahyun YOON ,  Yoonjung KIM ,  Jonghun YOO ,  Nara LEE ,  Sangheon LEE ,  Jaehyeok LEE ,  Taggun LEE ,  Heamin LEE ,  Taeil CHUNG

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

Abstract: 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.