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：US20250106402A1

公开(公告)日：2025-03-27

申请号：US18730172

申请日：2023-04-23

Applicant: ZTE CORPORATION ,  SUN YAT-SEN UNIVERSITY

Inventor： Fan LIANG ,  Jian HE ,  Yi LIU ,  Ruishan HUANG ,  Ying GAO ,  Ping WU ,  Shaowei XIE

IPC: H04N19/136

Abstract: Provided are a coding method, a decoding method, a communication node, and a storage medium. The method includes determining to-be-coded attribute data of attribute information of a point cloud; determining a coding order of a current point in the point cloud; coding to-be-coded attribute data of the current point according to the coding order; and continuing to determine a coding order of a next current point in the point cloud, and coding to-be-coded attribute data of the next current point until all points in the point cloud are coded to obtain coded attribute data.

公开(公告)号：US20240223794A1

公开(公告)日：2024-07-04

申请号：US18555912

申请日：2022-03-18

Applicant: ZTE CORPORATION

Inventor： Ying GAO

IPC: H04N19/46

CPC classification number: H04N19/46

Abstract: Provided are methods and apparatuses for processing a bitstream, a terminal device and a storage medium The method for processing a bitstream includes acquiring an encoded bitstream, where the encoded bitstream includes encoding indication information, where the encoding indication information is used for indicating a bitstream type of the encoded bitstream; acquiring the encoding indication information; and decoding the encoded bitstream according to the encoding indication information.

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.