公开(公告)号：US20210218965A1

公开(公告)日：2021-07-15

申请号：US17214520

申请日：2021-03-26

Applicant: ZTE Corporation

Inventor： Ming LI ,  Ping WU ,  Zhao WU

IPC: H04N19/119 ,  H04N19/124 ,  H04N19/436 ,  H04N19/70 ,  H04N19/174

Abstract: Techniques for encoding, decoding, and extracting one or more bitstreams to form one or more sub-bitstreams are described. In one example aspect, a method for video or picture processing includes partitioning a picture into one or more tiles and generating one or more bitstreams using one or more configurations based on the one or more tiles. Generating each of the one or more bitstreams includes partitioning each of the one or more tiles into one or more slices, and performing, for each slice among the one or more slices a first encoding step to encode a tile identifier in a header of the slice, and a second encoding step to encode, in the header of the slice, a second address of the slice that indicates a location of the slice in the tile.

公开(公告)号：US20200351507A1

公开(公告)日：2020-11-05

申请号：US16957760

申请日：2018-12-19

Applicant: ZTE Corporation

Inventor： Ming LI ,  Zhao WU ,  Ping WU

IPC: H04N19/174 ,  H04N19/44 ,  H04N19/85 ,  H04N19/70

Abstract: A method and apparatus for decoding a video bitstream, a method and apparatus for generating a video bitstream, storage medium and an electronic device are provided. The method for decoding the video bitstream includes that: a first parameter of a reference position of a slice in a video picture is acquired; a second parameter of the slice is acquired, the second parameter being used for determining a starting position of the slice in the video picture; and a starting position coordinate parameter of the slice in the video picture is calculated according to the first parameter and the second parameter.

公开(公告)号：US20170302958A1

公开(公告)日：2017-10-19

申请号：US15513495

申请日：2015-09-22

Applicant: ZTE CORPORATION

Inventor： Ming LI ,  Ping WU ,  Guoqiang SHANG ,  Yutang XIE

IPC: H04N19/55 ,  H04N19/174 ,  H04N19/132 ,  H04N19/82 ,  H04N19/105

CPC classification number: H04N19/55 ,  H04N19/105 ,  H04N19/117 ,  H04N19/132 ,  H04N19/157 ,  H04N19/164 ,  H04N19/174 ,  H04N19/176 ,  H04N19/426 ,  H04N19/436 ,  H04N19/593 ,  H04N19/70 ,  H04N19/82

Abstract: Method, device and electronic equipment for coding/decoding are provided. The coding method includes: restricting range information about Block copying Vector(s) (BV(s)) of an Intra Block Copying (IBC) mode is determined; and the restricting range information is written into a bitstream. In the present disclosure, the problem of reduction in data processing efficiency caused by the fact that a BV range may not be determined when using IBC in the related technology is solved, the data processing efficiency may be improved, and meanwhile, smooth implementation of a coding or decoding process may also be ensured.

公开(公告)号：US20150358623A1

公开(公告)日：2015-12-10

申请号：US14650942

申请日：2012-11-01

Applicant: ZTE CORPORATION

Inventor： Ming LI ,  Ping WU

IPC: H04N19/159 ,  H04N19/82 ,  H04N19/117 ,  H04N19/174 ,  H04N19/172

CPC classification number: H04N19/159 ,  H04N19/107 ,  H04N19/117 ,  H04N19/137 ,  H04N19/14 ,  H04N19/164 ,  H04N19/172 ,  H04N19/174 ,  H04N19/46 ,  H04N19/70 ,  H04N19/82

Abstract: Disclosed are methods for coding and decoding at picture layer and slice layer, and corresponding coder and decoder. The method comprises: coder selecting, according to network transmission state and video characteristic, different constrained loop filter (CLF) and/or constrained intra-prediction (CIP) control modes for one of the following three objects: 1: different video sequences; 2: pictures in different periods in the same video sequence; 3: different slices in the same picture; according to the selected CLF and/or CIP control mode, coding CLF and/or CIP control flag bits in picture layer parameter set and slice layer parameter set; and a decoder parsing slice layer bitstream containing header information, picture layer parameter set and/or slice layer parameter set, and according to the obtained CLF and/or CIP control flag bits, decoding picture and slice by using the corresponding CLF and/or CIP control mode. Through the present invention, a desirable tradeoff can be achieved between coding efficiency and error resilience performance.

Abstract translation: 公开了图像层和切片层以及对应的编码器和解码器的编码和解码方法。 该方法包括：根据网络传输状态和视频特征，对以下三个对象之一的不同约束环路滤波器（CLF）和/或约束帧内预测（CIP）控制模式进行编码器选择：1：不同视频序列; 2：同一视频序列中不同时期的图片; 3：同一张图片中的不同切片; 根据选择的CLF和/或CIP控制模式，对图层参数集和切片层参数集中的CLF和/或CIP控制标志位进行编码; 以及解码器解码包含标题信息，图像层参数集和/或片层参数集的片层比特流，并且根据获得的CLF和/或CIP控制标志位，通过使用相应的CLF和/或CIP解码图片和片 控制模式。 通过本发明，可以在编码效率和错误恢复性能之间实现期望的折衷。

公开(公告)号：US20250056050A1

公开(公告)日：2025-02-13

申请号：US18921488

申请日：2024-10-21

Applicant: ZTE Corporation

Inventor： Ming LI ,  Ping WU

IPC: H04N19/70 ,  H04N19/169 ,  H04N19/172 ,  H04N19/176

Abstract: A bitstream processing technique includes obtaining a first parameter set identifier from a data unit containing bits corresponding to a coded video region, obtaining a tool flag from a first parameter set corresponding to the first parameter set identifier, determining, from the tool flag, that a tool parameter of a tool corresponding to the tool flag is present or enabled for decoding the coded video region, wherein the tool corresponds to a video coding technique, obtaining, based on the determining, a second parameter set identifier, obtaining the tool parameter from a second parameter set corresponding to the second parameter set identifier, and decoding the video region using the tool parameter.

公开(公告)号：US20240414371A1

公开(公告)日：2024-12-12

申请号：US18698233

申请日：2022-12-08

Applicant: ZTE CORPORATION ,  SUN YAT-SEN UNIVERSITY

Inventor： Fan LIANG ,  Zhao WU ,  Ying GAO ,  Ping WU ,  Shaowei XIE

IPC: H04N19/597 ,  H04N19/13 ,  H04N19/91 ,  H04N19/93

Abstract: Provided are a point cloud encoding method, a point cloud decoding method, a communication node, and a storage medium. The method includes predicting attribute information and generating a residual; quantizing the residual; performing run length encoding on the quantized residual to generate a run length value; for each run length value, selecting an entropy encoding strategy corresponding to a run length value to perform entropy encoding on the run length value; and processing the encoded run length value.

公开(公告)号：US20240331122A1

公开(公告)日：2024-10-03

申请号：US18291027

申请日：2022-05-26

Applicant: ZTE CORPORATION

Inventor： Ying GAO ,  Ping WU ,  Zhao WU ,  Pinlong CAI ,  Shaowei XIE

IPC: G06T7/00 ,  G06T7/11 ,  H04N19/70

CPC classification number: G06T7/0002 ,  G06T7/11 ,  H04N19/70 ,  G06T2207/10016 ,  G06T2207/20021 ,  G06T2207/30168

Abstract: Provided are a bitstream processing method and apparatus, a terminal device and a storage medium. The method includes: determining an image quality assessment region; determining quality assessment data of the image quality assessment region; determining image quality information, where the image quality information includes the quality assessment data; and adding the image quality information to a bitstream to obtain a processed bitstream.

公开(公告)号：US20210312588A1

公开(公告)日：2021-10-07

申请号：US17346668

申请日：2021-06-14

Applicant: ZTE Corporation

Inventor： Zhao WU ,  Ming LI ,  Ping WU

IPC: G06T3/00 ,  G06T3/60 ,  G06T9/00 ,  H04N19/597 ,  H04N19/105 ,  H04N19/85 ,  H04N19/17

Abstract: Techniques for encoding or decoding digital video or pictures include acquiring a video bitstream that includes an encoded video image that is a two-dimensional image comprising multiple regions of a panoramic image in three-dimensional coordinates, extracting neighboring information for the multiple regions, performing, using the neighboring information, post-processing of a video image decoded from the video bitstream, and generating a display image from the video image after the post-processing.

公开(公告)号：US20210243447A1

公开(公告)日：2021-08-05

申请号：US17181739

申请日：2021-02-22

Applicant: ZTE Corporation

Inventor： Ming LI ,  Ping WU ,  Zhao WU

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

Abstract: Devices, systems and methods for deriving intra prediction samples when the intra prediction mode for a coding block is the planar mode are described. In an aspect, a method for video coding includes selecting a first set of reference samples that are reconstructed neighboring samples of a current block, and determining a prediction value for a prediction sample of the current block by interpolating at least one of the first set and a second set of reference samples, where a reference sample of the second set of reference samples is based on a weighted sum of a first sample and a second sample from the first set of reference samples, and where the reference sample is aligned horizontally with the first sample, aligned vertically with the second sample, and positioned on an opposite side of the prediction sample with respect to either the first or the second sample.

公开(公告)号：US20210067834A1

公开(公告)日：2021-03-04

申请号：US16958644

申请日：2018-12-06

Applicant: ZTE CORPORATION

Inventor： Ming LI ,  Zhao WU ,  Ping WU ,  Xiaoquan HUA

IPC: H04N21/4728 ,  H04N21/2662 ,  H04N19/187 ,  H04N19/30 ,  H04N19/70 ,  H04N21/2343 ,  H04N19/174

Abstract: Provided are a method and apparatus for processing a video bitstream, a network device and a readable storage medium. The method includes: parsing a bitstream to be extracted, and acquiring parameter information about an extractable sub-bitstream from a data unit of the bitstream to be extracted; determining a picture type parameter value of a random access picture in the sub-bitstream according to the parameter information; and configuring, in a process of extracting the sub-bitstream from the bitstream to be extracted, a picture type parameter value in a data unit of the sub-bitstream according to the picture type parameter value of the random access picture.