公开(公告)号：US20230171408A1

公开(公告)日：2023-06-01

申请号：US18147402

申请日：2022-12-28

Applicant: Huawei Technologies Co., Ltd.

Inventor： Yixuan Zhang ,  Shaolin Chen ,  Lin Meng

IPC: H04N19/157 ,  H04N19/172 ,  H04N19/30 ,  H04N19/87 ,  H04N19/423 ,  H04N19/105 ,  H04N19/463

CPC classification number: H04N19/157 ,  H04N19/172 ,  H04N19/30 ,  H04N19/87 ,  H04N19/423 ,  H04N19/105 ,  H04N19/463

Abstract: In a picture processing method, when receiving a first picture in a video stream, a decoder side determines, based on a base layer of the 1st sub-picture of the first picture, whether the first picture meets a first preset condition; and the decoder side sends a second picture within a display time period of the first picture for displaying if the first picture meets the first preset condition, where the second picture is a picture that is in the video stream and that is sent within a first display time period for displaying.

公开(公告)号：US20230091518A1

公开(公告)日：2023-03-23

申请号：US17993134

申请日：2022-11-23

Applicant: Huawei Technologies Co., Ltd.

Inventor： Yixuan Zhang ,  Shaolin Chen ,  Lin Meng ,  Junkai Feng

IPC: H04N19/30 ,  H04N19/164 ,  H04N19/176

Abstract: Embodiments of this application provide a video transmission method, apparatus, and system, to reduce an end-to-end transmission delay of video data. The method includes: A transmit end obtains a first frame of image of the video data, where the first frame of image includes a plurality of sub-images, and the plurality sub-images include a first sub-image and a second sub-image; the transmit end performs layered encoding on the first sub-image to obtain a plurality of layers of bitstreams of the first sub-image; the transmit end sends the plurality of layers of bitstreams of the first sub-image to a receive end; the receive end decodes the plurality of layers of bitstreams of the first sub-image to obtain the first sub-image.

公开(公告)号：US20250008129A1

公开(公告)日：2025-01-02

申请号：US18884370

申请日：2024-09-13

Applicant: Huawei Technologies Co., Ltd.

Inventor： Shaolin Chen ,  Lin Meng ,  Yixuan Zhang

IPC: H04N19/196 ,  H04N19/176

Abstract: An image encoding method for ensuring quality of an encoded image includes: after obtaining a first image, an encoding device may obtain a first quantization parameter (QP) corresponding to each coding block in at least one coding block in the first image; and then encode each coding block in the at least one coding block based on the first QP corresponding to each coding block, to obtain first image data. The encoding device may determine, based on a quality parameter of each coding block in the first image data, a second QP corresponding to each coding block; and encode each coding block in the at least one coding block based on the second QP corresponding to each coding block, to obtain second image data.