公开(公告)号：US20210409730A1

公开(公告)日：2021-12-30

申请号：US17470354

申请日：2021-09-09

Applicant: Huawei Technologies Co., Ltd.

Inventor： Ye-Kui Wang ,  Jianle Chen ,  FNU Hendry

IPC: H04N19/174 ,  H04N19/70 ,  H04N19/96 ,  H04N19/119 ,  H04N19/176 ,  H04N19/172

Abstract: A video coding mechanism is disclosed. The mechanism includes receiving a bitstream comprising a sub-picture containing a slice. A slice address is obtained. The slice address includes a sub-picture level slice index of the slice when the slice is a rectangular slice. The slice of the sub-picture is decoded based on the slice address. The slice is forwarded for display as part of a decoded video sequence.

公开(公告)号：US20210392324A1

公开(公告)日：2021-12-16

申请号：US17459806

申请日：2021-08-27

Applicant: Huawei Technologies Co., Ltd.

Inventor： Ye-Kui Wang ,  FNU Hendry ,  Jinale Chen

IPC: H04N19/117 ,  H04N19/82 ,  H04N19/46 ,  H04N19/169 ,  H04N19/186 ,  H04N19/174

Abstract: A video coding mechanism is disclosed. The mechanism includes receiving a bitstream comprising a slice and a luma mapping with chroma scaling (LMCS) adaptation parameter set (APS) including LMCS parameters. The mechanism further includes determining that the LMCS APS is referenced in data related to the slice. The mechanism further includes decoding the slice using LMCS parameters from the LMCS APS based on the reference to the LMCS APS. The mechanism further includes forwarding the slice for display as part of a decoded video sequence.

公开(公告)号：US20210337226A1

公开(公告)日：2021-10-28

申请号：US17370879

申请日：2021-07-08

Applicant: Huawei Technologies Co., Ltd.

Inventor： Ye-Kui Wang ,  FNU Hendry

IPC: H04N19/44 ,  H04N19/119 ,  H04N19/132 ,  H04N19/169 ,  H04N19/174

Abstract: A video coding mechanism is disclosed. The mechanism includes receiving a bitstream comprising one or more sub-pictures partitioned from a picture and a sub-picture level indicator indicating resource requirements for decoding a current sub-picture. The bitstream is parsed to obtain the sub-picture level indicator and the current sub-picture. Resources are allocated to decode the current sub-picture based on the sub-picture level indicator. The current sub-picture is decoded to create a video sequence by employing the allocated resources. The video sequence is forwarded for display.

公开(公告)号：US20210329236A1

公开(公告)日：2021-10-21

申请号：US17362279

申请日：2021-06-29

Applicant: Huawei Technologies Co., Ltd.

Inventor： FNU Hendry ,  Ye-Kui Wang

IPC: H04N19/119 ,  H04N19/46 ,  H04N19/184 ,  H04N19/174

Abstract: A video coding mechanism is disclosed. The mechanism includes receiving a sub-bitstream including: a sub-picture of a picture partitioned into a plurality of slices including a first slice, a parameter set associated with the picture and the sub-picture, and a slice header associated with the first slice. The parameter set is parsed to obtain an identifier and a length of a slice address of the first slice. A slice address for the first slice is determined from the slice header based on the identifier and the length of the slice address. The sub-bitstream is decoded to create a video sequence of sub-pictures including the first slice. The video sequence of sub-pictures is forwarded for display.

公开(公告)号：US20210211663A1

公开(公告)日：2021-07-08

申请号：US17199018

申请日：2021-03-11

Applicant: Huawei Technologies Co., Ltd.

Inventor： Ye-Kui Wang ,  Fnu Hendry ,  Jianle Chen

IPC: H04N19/119 ,  H04N19/46 ,  H04N19/176 ,  H04N19/174

Abstract: A video coding mechanism is disclosed. The mechanism includes receiving a bitstream including image data divided into one or more slices. The one or more slices are further divided into one or more tiles. The mechanism further includes determining that a first slice contains a single tile based on a first flag. The mechanism further includes decoding the first slice to generate a reconstructed image.

公开(公告)号：US20210168360A1

公开(公告)日：2021-06-03

申请号：US17176594

申请日：2021-02-16

Applicant: Huawei Technologies Co., Ltd.

Inventor： FNU Hendry ,  Ye-Kui Wang

IPC: H04N19/105 ,  H04N19/159 ,  H04N19/70 ,  H04N19/176 ,  H04N19/174

Abstract: A method of decoding a coded video bitstream is provided. The method includes obtaining a reference picture list structure for a current slice represented in the coded video bitstream; constructing a reference picture list for the current slice based on the reference picture list structure such that a number of entries in the reference picture list and an order of the entries in the reference picture list are both the same as in the reference picture list structure, wherein the reference picture list contains a plurality of active entries and a plurality of inactive entries; and obtaining, based on at least one active entry of the reference picture list, at least one reconstructed block of the current slice.

公开(公告)号：US10992957B2

公开(公告)日：2021-04-27

申请号：US16373640

申请日：2019-04-03

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Yuqun Fan ,  Ye-Kui Wang

IPC: H04N19/597 ,  H04N19/167 ,  H04N13/178 ,  H04N13/161

Abstract: This application provides a media data processing method and apparatus. A media processing device receives a media stream. The media stream includes media data recorded at a plurality of viewpoints. The device obtains metadata information of the media stream. The metadata information includes viewpoint identification information of the viewpoints. The device displays media data of a first viewpoint based on the viewpoint identification information. The device also displays indications of other viewpoints when displaying the media data of the first viewpoint, so that a user of the device can switch to display media data of other viewpoints.

公开(公告)号：US20210021815A1

公开(公告)日：2021-01-21

申请号：US17061421

申请日：2020-10-01

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Ye-Kui Wang ,  Huameng Fang ,  Yuqun Fan ,  Jianle Chen

IPC: H04N19/105 ,  H04N19/132 ,  H04N19/159 ,  H04N19/46 ,  H04N19/176

Abstract: A video coding mechanism for viewpoint dependent video coding is disclosed. The mechanism includes receiving a spherical video signal stitched from multiple directional video streams. The spherical video signal is mapped into a plurality of sub-picture video signals each containing a sequence of sub-pictures. The plurality of sub-picture video signals, are encoded as a plurality of sub-picture bitstreams, such that, when decoded at a decoder, a value of each sample in each sub-picture is identical to a value of a corresponding sample in a decoded entire picture composed from the sub-pictures. The plurality of sub-picture bitstreams are composed into a plurality of sub-picture tracks with an indication that the sub-picture tracks are conforming to a particular video profile. The sub-picture bitstreams are transmitted toward a decoder to support decoding and displaying virtual reality video viewport.

公开(公告)号：US20250150632A1

公开(公告)日：2025-05-08

申请号：US18952646

申请日：2024-11-19

Applicant: Huawei Technologies Co., Ltd.

Inventor： FNU Hendry ,  Ye-Kui Wang ,  Jianle Chen

IPC: H04N19/70 ,  H04N19/169 ,  H04N19/172 ,  H04N19/174 ,  H04N19/44 ,  H04N19/46

Abstract: A method of decoding is provided. The method includes receiving a picture unit (PU) including zero or one picture header (PH) network abstraction layer (NAL) unit and only one coded picture; and decoding the only one coded picture from the PU to obtain a decoded picture. A corresponding method of encoding is also provided. The method includes generating a PU including zero or one PH NAL units and only one coded picture; encoding the PU into a video bitstream; and storing the video bitstream for communication toward a video decoder.

公开(公告)号：US12294699B2

公开(公告)日：2025-05-06

申请号：US18519875

申请日：2023-11-27

Applicant: Huawei Technologies Co., Ltd.

Inventor： Ye-Kui Wang ,  Jianle Chen ,  Fnu Hendry

IPC: H04N19/117 ,  H04N19/105 ,  H04N19/119 ,  H04N19/132 ,  H04N19/137 ,  H04N19/159 ,  H04N19/172 ,  H04N19/174 ,  H04N19/176 ,  H04N19/184 ,  H04N19/186 ,  H04N19/46 ,  H04N19/52 ,  H04N19/593 ,  H04N19/70 ,  H04N19/82 ,  H04N19/86 ,  H04N19/96

Abstract: A video coding mechanism includes receiving a bitstream comprising a current picture including a sub-picture coded according to inter-prediction. Coded blocks contain candidate motion vectors for a current block of the sub-picture. The coded blocks include a collocated block from a different picture. A candidate list of candidate motion vectors for the current block are derived by excluding collocated motion vectors from the candidate list when the collocated motion vectors are included in the collocated block, when the collocated motion vectors point outside of the sub-picture, and when a flag is set to indicate the sub-picture is treated as a picture. A current motion vector for the current block is determined from the candidate list of candidate motion vectors. The current block is decoded based on the current motion vector. The current block is forwarded for display as part of a decoded video sequence.