公开(公告)号：US20170302935A1

公开(公告)日：2017-10-19

申请号：US15505614

申请日：2015-08-21

Applicant: ZTE CORPORATION

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

IPC: H04N19/176 ,  H04N19/103 ,  H04N19/174 ,  H04N19/70

CPC classification number: H04N19/176 ,  H04N19/103 ,  H04N19/174 ,  H04N19/593 ,  H04N19/70

Abstract: The predictive coding method includes: configuring types of slices; when coding a slice of an inter prediction type, configuring a picture where the slice is located as a reference picture for the slice, using a first coding scheme to code coding blocks employing an intra block copying (IBC) mode in the slice, and, when coding a slice of an intra prediction type, using a second coding scheme that is different from the first coding scheme to code coding blocks employing the IBC mode in the slice. Also provided are the corresponding decoding method, the corresponding coder/decoder, and the electronic device. Different coding schemes are employed to code coding blocks employing the IBC mode in the slice of an inter prediction type and those in the slice of an intra prediction type. Also provided are picture padding method and device.

公开(公告)号：US20170013259A1

公开(公告)日：2017-01-12

申请号：US15107585

申请日：2014-10-23

Applicant: ZTE Corporation

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

IPC: H04N19/105 ,  H04N19/184 ,  H04N19/187 ,  H04N19/597

CPC classification number: H04N19/105 ,  H04N19/184 ,  H04N19/187 ,  H04N19/30 ,  H04N19/433 ,  H04N19/463 ,  H04N19/597 ,  H04N19/70

Abstract: Provided are a method and a device for decoding a Picture Order Count (POC), and a method and a device for coding a POC, and electronic equipment. The method for decoding the POC includes that: parameters for Most Significant Bit (MSB) and Least Significant Bit (LSB) used in an alignment operation on the POC are acquired; an MSB value and an LSB value of a POC value of a current picture are determined according to the parameters for MSB and LSB; and the POC value of the current picture is calculated according to the MSB value and the LSB value. By means of the technical solution, the problems in the related art that the accuracy in decoding and outputting a multilayer video bitstream cannot be ensured and an extra overhead of network resources is increased in multilayer video coding and decoding processes are solved.

Abstract translation: 提供了用于解码图像顺序计数（POC）的方法和装置，以及用于编码POC的方法和装置以及电子设备。 用于解码POC的方法包括：获取在POC上的对准操作中使用的用于最高有效位（MSB）和最低有效位（LSB）的参数; 根据MSB和LSB的参数确定当前图片的POC值的MSB值和LSB值; 并根据MSB值和LSB值计算当前图像的POC值。 通过技术方案，解决了多层视频编码和解码过程中相关技术中难以确保解码和输出多层视频比特流的精度以及网络资源的额外开销增加的问题。

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：US20250008126A1

公开(公告)日：2025-01-02

申请号：US18884084

申请日：2024-09-12

Applicant: ZTE Corporation

Inventor： Ming LI ,  Ping WU

IPC: H04N19/186 ,  H04N19/124 ,  H04N19/70

Abstract: A video decoding technique includes parsing a bitstream to determine a quantization parameter (QP) for a luma component of a region from a data unit of a parameter set included in the bitstream, determining a flag from the data unit of the parameter set, determining, in a case that the flag is equal to a first value, a QP for a chroma component of the region as a first function of the QP for the luma component and a default chroma delta QP indicated by the flag, determining, in a case that the flag is equal to a second value, the QP for the chroma component of the region by (a) obtaining a delta chroma QP from the data unit, and (b) determining the QP for the chroma component as a second function of the QP for the luma component and the delta chroma QP, and decoding the chroma component using the QP for the chroma component in a case that the parameter set is activated for decoding the region.

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.

公开(公告)号：US20160323590A1

公开(公告)日：2016-11-03

申请号：US15107730

申请日：2014-10-15

Applicant: ZTE Corporation

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

IPC: H04N19/196 ,  H04N19/103 ,  H04N19/136 ,  H04N19/597 ,  H04N19/172

CPC classification number: H04N19/196 ,  H04N19/103 ,  H04N19/136 ,  H04N19/172 ,  H04N19/30 ,  H04N19/433 ,  H04N19/597 ,  H04N19/70

Abstract: Provided are a bitstream generation method and apparatus, a bitstream processing method and apparatus, and a system. The bitstream generation method includes that: it is judged whether it is needed to execute a Picture Order Count (POC) alignment operation on an entire bitstream and/or a part of the bitstream according to an application requirement; and identification and control information is written into the bitstream according to a judgment result, wherein the identification and control information includes: information indicating whether to execute the POC alignment operation on the entire bitstream and/or a part of the bitstream. The flexibility in bitstream control can be improved.

Abstract translation: 提供比特流生成方法和装置，比特流处理方法和装置以及系统。 比特流生成方法包括：根据应用要求判断是否需要对整个比特流和/或部分比特流执行图片顺序计数（POC）对齐操作; 并且根据判断结果将识别和控制信息写入比特流，其中识别和控制信息包括：指示是否对整个比特流和/或部分比特流执行POC对齐操作的信息。 可以提高比特流控制的灵活性。

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.