公开(公告)号：US20200288136A1

公开(公告)日：2020-09-10

申请号：US16880757

申请日：2020-05-21

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Huameng FANG ,  Peiyun DI

IPC: H04N19/132 ,  H04N19/117 ,  H04N19/119 ,  H04N19/176 ,  G06T9/00 ,  G06T3/40 ,  G06T7/40

Abstract: A video picture processing method includes: sampling an initial picture, to obtain a target picture; dividing the target picture, to obtain a plurality of sub-pictures; extending picture borders of a first-category sub-picture, to obtain an extended first-category sub-picture; downsampling the extended first-category sub-picture, to obtain a downsampled first-category sub-picture; encoding a second-category sub-picture and the downsampled first-category sub-picture, to obtain bitstreams; and writing location information and extension information of the plurality of sub-pictures into the bitstreams, where extension information of the first-category sub-picture is used to indicate that the picture borders of the first-category sub-picture have been extended and indicate extension widths of the picture borders, and extension information of the second-category sub-picture is used to indicate that picture borders of the second-category sub-picture have not been extended.

公开(公告)号：US20230209131A1

公开(公告)日：2023-06-29

申请号：US18173887

申请日：2023-02-24

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Huameng FANG ,  Xin LIU ,  Peiyun DI

IPC: H04N21/4402 ,  H04N21/218 ,  H04N19/597

CPC classification number: H04N21/4402 ,  H04N21/21805 ,  H04N19/597

Abstract: Embodiments of this application disclose an encoding and decoding method including: Each of multiple viewpoint bitstreams includes a first type bitstream and a second type bitstream; when a first image frame in a first type bitstream of a first viewpoint bitstream is played, receiving a switching request that indicates to play a second viewpoint bitstream; determining a first random access frame that is in a first type bitstream and/or a second type bitstream of the second viewpoint bitstream and whose play moment is after and closest to the first image frame; decoding to obtain the first random access frame based on encoded data of the first random access frame in the second viewpoint bitstream, and decoding to obtain and play an image frame that is in the first type bitstream of the second viewpoint bitstream by using the first random access frame as a reference frame.

公开(公告)号：US20210160552A1

公开(公告)日：2021-05-27

申请号：US17164838

申请日：2021-02-01

Applicant: Huawei Technologies Co., Ltd.

Inventor： Huameng FANG ,  Yuqun FAN ,  Peiyun DI ,  Ye-Kui WANG

IPC: H04N21/2343 ,  H04N21/4402 ,  H04N21/258 ,  H04N21/435

Abstract: This application provides a media data transmission method and an apparatus. The method includes: A client sends first information to a server. The client receives video data packets that correspond to a second target video picture and that are sent by the server. The first information is used to indicate spatial information of a region in which a first target video picture is located, and the first target video picture includes a video picture within a current viewport. The second target video picture includes the first target video picture, at least one of the video data packets corresponding to the second target video picture carries at least one piece of second information, and the second information is used to indicate spatial information of a region in which the second target video picture is located.

公开(公告)号：US20200228837A1

公开(公告)日：2020-07-16

申请号：US16831212

申请日：2020-03-26

Applicant: Huawei Technologies Co., Ltd.

Inventor： Yi SONG ,  Qingpeng XIE ,  Huameng FANG ,  Yuqun FAN

IPC: H04N19/597 ,  H04N19/12 ,  H04N19/184 ,  H04N19/52

Abstract: The present disclosure discloses a media information processing method and apparatus. The method includes: obtaining media data that includes indication information and at least one frame of picture data. The indication information is used to indicate whether a prediction pixel corresponding to a pixel in a picture exceeds a boundary in a preset direction. The method further includes decoding the frame(s) of picture data based on the indication information. According to the media information processing method and apparatus in the present disclosure, it is possible to splice a plurality of sub-bitstreams, and required bitstreams are spliced and then are decoded, so that a plurality of sub-picture sequences can be decoded by using only a single decoder.