公开(公告)号：US20230319272A1

公开(公告)日：2023-10-05

申请号：US18206794

申请日：2023-06-07

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Yi SONG ,  Peiyun DI ,  Shaolin CHEN ,  Yixuan ZHANG

IPC: H04N19/119 ,  H04N19/96 ,  H04N19/30 ,  H04N19/176

CPC classification number: H04N19/119 ,  H04N19/96 ,  H04N19/30 ,  H04N19/176

Abstract: This application provides encoding and decoding methods and apparatuses for an enhancement layer. The encoding method includes: an encoder obtains a reconstructed block of a base layer of a to-be-encoded picture block; calculates a difference between corresponding pixels in the to-be-encoded picture block and the reconstructed block of the base layer to obtain a residual block of an enhancement layer of the to-be-encoded picture block; determines a transform-block partitioning manner of the residual block of the enhancement layer; and performs transformation on the residual block of the enhancement layer based on the transform-block partitioning manner. This application can simplify a processing procedure for the encoder and improve encoding efficiency of the encoder. In addition, compression efficiency of the residual block can be improved more effectively by using an adaptive TU partitioning method.

公开(公告)号：US20250056054A1

公开(公告)日：2025-02-13

申请号：US18929187

申请日：2024-10-28

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Yixuan ZHANG ,  Shaolin CHEN ,  Yifan WU

IPC: H04N19/70 ,  H04N19/124 ,  H04N19/142 ,  H04N19/169 ,  H04N19/174 ,  H04N19/176 ,  H04N21/44

Abstract: Example video frame processing methods and devices are described. One example video frame processing method includes detecting whether a first video frame is a scene switching frame. The method further includes, if the first video frame is the scene switching frame, continuing to display a second video frame, and switching display from the second video frame to the first video frame based on the first video frame meeting a preset display condition. The second video frame is a video frame that is last displayed before a bitstream of the first video frame is received.

公开(公告)号：US20250142088A1

公开(公告)日：2025-05-01

申请号：US19009255

申请日：2025-01-03

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Yixuan ZHANG ,  Shaolin CHEN ,  Yi SONG ,  Peiyun DI

IPC: H04N19/164 ,  H04N19/172 ,  H04N19/30 ,  H04N19/423 ,  H04N19/46

Abstract: Disclosed are an encoding/decoding method, apparatus, and system. In an implementation, the encoding method includes: encoding video information, where the video information includes M frames, the M frames include a first frame, a second frame, and a third frame, the second frame refers to the first frame, and the third frame refers to the second frame or the first frame, storing the first frame, the second frame, and the third frame in a buffer to obtain candidates of a long-term reference frame, and selecting a subset from the candidates based on a feedback signal as a long-term reference frame.