公开(公告)号：US20210390031A1

公开(公告)日：2021-12-16

申请号：US17412884

申请日：2021-08-26

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Xiaofeng YANG ,  Dongmei XIE ,  Zhong SHENG ,  Taotao LIU ,  Kaifang DING ,  Cheng LI ,  Feng YE

IPC: G06F11/34 ,  G06F11/30 ,  G06F11/32

Abstract: This application provides a trace chain information query method, including: receiving, by a trace chain server, first trace chain information sent by a first service node and second trace chain information sent by a second service node, where the first service node is a service node in a first trace chain, the second service node is a service node in a second trace chain, both the first trace chain and the second trace chain are generated as triggered by a same user operation, the first trace chain information includes a group identifier, the second trace chain information includes the group identifier, and the group identifier is used to indicate the user operation; and finding, by the trace chain server, the first trace chain information and the second trace chain information based on the group identifier.

公开(公告)号：US20210344942A1

公开(公告)日：2021-11-04

申请号：US17375936

申请日：2021-07-14

Applicant: Huawei Technologies Co., Ltd.

Inventor： Xiaofeng YANG ,  Yuanyuan ZHANG ,  Teng SHI

IPC: H04N19/463 ,  H04N19/162 ,  H04N19/119 ,  H04N19/597 ,  H04N19/17 ,  H04N19/70 ,  H04N19/172 ,  H04N19/167 ,  H04N19/176

Abstract: The present invention discloses a video encoding and decoding method, apparatus and system, where the video encoding method includes: determining an independently decodable view in a to-be-encoded picture according to a configuration file corresponding to the video; dividing the picture into at least two tiles, where an area corresponding to one or more tiles that cover the independently decodable view is an independently decodable area; generating an auxiliary message corresponding to the picture, where the auxiliary message includes a location identifier of the independently decodable area; and encoding all tiles included in the picture to form an encoded video bitstream, where the encoded video bitstream includes the auxiliary message. Decoding this encoded video bitstream can lower a requirement for performance of a decoder and improve decoding efficiency.