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：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.

公开(公告)号：US20180242023A1

公开(公告)日：2018-08-23

申请号：US15507249

申请日：2015-05-06

Applicant: TONGJI UNIVERSITY ,  ZTE CORPORATION

Inventor： Tao LIN ,  Ming LI ,  Guoqiang SHANG ,  Zhao WU

IPC: H04N19/91 ,  H04N19/182 ,  H04N19/157

CPC classification number: H04N19/91 ,  H04N19/157 ,  H04N19/182 ,  H04N19/517 ,  H04N19/593

Abstract: An image coding method and apparatus and an image decoding method and apparatus are provided by the present document. The image coding method includes: implementing matching coding for pixels of an input video image to obtain one or more matching relationship parameters, herein the matching relationship parameters are parameters used in a process of constructing predicted values and/or reconstructed values of the pixels in the image; mapping the matching relationship parameters to obtain mapped values of the matching relationship parameters; and performing entropy coding on the mapped values of the matching relationship parameters. The present document addresses the problem existing in the conventional art which is caused by the direct implementation of entropy coding for matching relationship parameters and achieves a good data compression effect through entropy coding.

公开(公告)号：US20250014162A1

公开(公告)日：2025-01-09

申请号：US18713367

申请日：2022-11-25

Applicant: ZTE CORPORATION ,  SHANGHAI JIAO TONG UNIVERSITY

Inventor： Yiling XU ,  Qi YANG ,  Yujie ZHANG ,  Yunfeng GUAN ,  Jun SUN ,  Zhao WU ,  Ying GAO ,  Ping WU

IPC: G06T7/00 ,  G06T5/20 ,  G06T7/60 ,  G06T19/20

Abstract: Provided are a point cloud quality evaluation method and device and a storage medium. The method includes: selecting the target number of reference point cloud regions from a reference point cloud according to a preset region selection rule (S110); selecting to-be-evaluated point cloud regions respectively corresponding to the target number of reference point cloud regions from a to-be-evaluated point cloud corresponding to the reference point cloud (S120); successively performing at least one scale transformation on the reference point cloud region and a respective to-be-evaluated point cloud region to generate corresponding new reference point cloud regions and corresponding new to-be-evaluated point cloud regions (S130); separately performing a quality evaluation on each new reference point cloud region and a respective new to-be-evaluated point cloud region to obtain a corresponding quality evaluation value (S140); and fusing all quality evaluation values to obtain a corresponding multi-scale quality evaluation value (S150).

公开(公告)号：US20240205413A1

公开(公告)日：2024-06-20

申请号：US18555851

申请日：2022-04-02

Applicant: ZTE CORPORATION

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

IPC: H04N19/136 ,  H04N19/172

CPC classification number: H04N19/136 ,  H04N19/172

Abstract: Provided are a picture encoding method, a picture encoding apparatus, a picture decoding method, a picture decoding apparatus, an electronic device and a storage medium. The encoding method includes: acquiring a video picture, and determining a picture feature of the video picture; determining in-loop identification information and out-loop identification information according to the picture feature; processing the video picture according to the in-loop identification information and the out-loop identification information; and encoding the processed video picture to generate a code stream, and writing the in-loop identification information and the out-loop identification information into the code stream. Therefore, the processing of a video picture is achieved both encoding and decoding out-loop and encoding and decoding in-loop according to the picture feature during a picture transmission process, thereby effectively improving the video encoding and decoding efficiency and improving the quality of a decoded picture at the same code rate.

公开(公告)号：US20240040104A1

公开(公告)日：2024-02-01

申请号：US18256121

申请日：2021-12-02

Applicant: ZTE CORPORATION ,  Shanghai Jiao Tong University

Inventor： Yiling XU ,  Puyue HOU ,  Linyao GAO ,  Jun SUN ,  Zhao WU ,  Ping WU ,  Qiuting LI

IPC: H04N13/194

CPC classification number: H04N13/194

Abstract: Provided are a data transmission method, apparatus and device, and a storage medium. The data transmission method includes the following: receiving current status information sent by a client; determining status-dependent point cloud spatial region information corresponding to the current status information according to the current status information; selecting status-dependent point cloud spatial region data corresponding to the status-dependent point cloud spatial region information; and sending the status-dependent point cloud spatial region information and the status-dependent point cloud spatial region data to the client.

公开(公告)号：US20220417535A1

公开(公告)日：2022-12-29

申请号：US17902022

申请日：2022-09-02

Applicant: TONGJI UNIVERSITY ,  ZTE CORPORATION

Inventor： Tao LIN ,  Ming LI ,  Ping WU ,  Guoqiang SHANG ,  Zhao WU

IPC: H04N19/176 ,  H04N19/17 ,  H04N19/70 ,  H04N19/186 ,  H04N19/593 ,  H04N19/182

Abstract: Disclosed are an image encoding and decoding method, image processing device, and computer storage medium. the image coding method includes: when copying coding is performed on a current coding block by using one of the at least two different palette and pixel string copying coding manners, generating a new palette color according to pixels of the current coding block; generating a palette for the current coding block according to the new palette color and a palette color candidate set shared by the at least two different palette and pixel string copying coding manners; and performing palette and pixel string copying coding by using the palette for the current coding block, and generating a video bitstream comprising a copying manner and a copying parameter.

公开(公告)号：US20210144370A1

公开(公告)日：2021-05-13

申请号：US17149524

申请日：2021-01-14

Applicant: ZTE Corporation

Inventor： Ming LI ,  Ping WU ,  Guoqiang SHANG ,  Zhao WU

IPC: H04N19/117 ,  H04N19/105 ,  H04N19/132 ,  H04N19/176 ,  H04N19/42 ,  H04N19/593

Abstract: Disclosed are an encoding processing method and device, a decoding processing method and device, an encoder and a decoder. The encoding processing method includes: determining a filtering process to be applied to a pixel in a prediction reference block for an encoding block; filtering the pixel in the prediction reference block according to the filtering process; constructing a pixel prediction value for the encoding block according to a filtered pixel sampling value in the prediction reference block; and encoding the encoding block according to the pixel prediction value.