公开(公告)号：US12126821B2

公开(公告)日：2024-10-22

申请号：US17466788

申请日：2021-09-03

Applicant: ZTE Corporation

Inventor： Ming Li ,  Ping Wu

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

CPC classification number: 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.

公开(公告)号：US12100116B2

公开(公告)日：2024-09-24

申请号：US17811170

申请日：2022-07-07

Applicant: ZTE Corporation

Inventor： Zhao Wu ,  Ping Wu

IPC: G06T3/16 ,  G06T9/00 ,  H04L65/80 ,  H04N19/20

CPC classification number: G06T3/16 ,  G06T9/00 ,  H04L65/80 ,  H04N19/20

Abstract: Methods, apparatus, and systems for providing consistent immersive media viewing experiences to user while reducing bandwidth consumption are disclosed. In one example aspect, a method for processing multimedia content includes determining, for a conversion between a frame of panoramic media content comprising multiple segments and a bitstream representation of the frame of panoramic media content, multiple sets of rank information associated with the frame. Each set of the rank information indicates a priority level for processing a segment of the frame of panoramic media content. The method also includes performing the conversion based on the multiple sets of rank information.

公开(公告)号：US11917168B2

公开(公告)日：2024-02-27

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 ,  H04N19/182 ,  H04N19/186 ,  H04N19/593 ,  H04N19/17 ,  H04N19/70

CPC classification number: H04N19/176 ,  H04N19/17 ,  H04N19/182 ,  H04N19/186 ,  H04N19/593 ,  H04N19/70

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：US11653019B2

公开(公告)日：2023-05-16

申请号：US17482832

申请日：2021-09-23

Applicant: ZTE CORPORATION ,  TONGJI UNIVERSITY

Inventor： Tao Lin ,  Ming Li ,  Ping Wu ,  Guoqiang Shang ,  Zhao Wu

IPC: H04N19/517 ,  H04N19/176 ,  H04N19/13 ,  H04N19/105 ,  H04N19/46 ,  H04N19/136 ,  H04N19/11 ,  H04N19/44 ,  H04N19/91 ,  H04N19/96 ,  H04N19/593

CPC classification number: H04N19/517 ,  H04N19/105 ,  H04N19/11 ,  H04N19/13 ,  H04N19/136 ,  H04N19/176 ,  H04N19/44 ,  H04N19/46 ,  H04N19/593 ,  H04N19/91 ,  H04N19/96

Abstract: Disclosed are an image coding and decoding methods, an image processing device, and a computer storage medium. The image coding method comprises: obtaining a dynamic range of a copy parameter of a current coding sampling value segment according to a size of a reference area; and coding the copy parameter according to the dynamic range to generate a video bitstream containing information about the size of the reference area and information about the copy parameter. The decoding method comprises: parsing a video bitstream to obtain a dynamic range of a copy parameter of a decoding sampling value segment; and decoding the copy parameter according to the dynamic range.

公开(公告)号：US11272176B2

公开(公告)日：2022-03-08

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：US10904523B2

公开(公告)日：2021-01-26

申请号：US16322694

申请日：2016-07-08

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：US10820016B2

公开(公告)日：2020-10-27

申请号：US16090101

申请日：2017-02-10

Applicant: TONGJI UNIVERSITY ,  ZTE CORPORATION

Inventor： Tao Lin ,  Liping Zhao ,  Kailun Zhou ,  Shuhui Wang ,  Ming Li ,  Ping Wu ,  Zhao Wu

IPC: H04N19/70 ,  H04N19/176 ,  H04N19/42 ,  H04N19/463 ,  H04N19/537 ,  H04N19/52 ,  H04N19/11 ,  H04N19/593 ,  H04N19/103 ,  H04N19/46 ,  H04N19/61

Abstract: Provided is an encoding and decoding method and device for data compression. The encoding method includes: adaptively selecting a constrained string mode from a plurality of preset constrained string modes; and performing, according to the selected constrained string mode, string-matching encoding on a coding block to obtain information of a constrained string encoded in the selected constrained string mode and to obtain a bitstream of a syntax element of the constrained string encoded in the selected constrained string mode.

公开(公告)号：US10728569B2

公开(公告)日：2020-07-28

申请号：US16443847

申请日：2019-06-17

Applicant: ZTE Corporation

Inventor： Ming Li ,  Ping Wu

IPC: H04N7/12 ,  H04N19/46 ,  H04N19/70 ,  H04N19/597 ,  H04N19/174

Abstract: Provided are methods and devices for encoding and decoding using parameter sets, and electronic equipment. In the method for encoding, an encoder determines parameter sets and/or virtual parameter sets for a slice, wherein the virtual parameter set is a data structure which is generated by loading information acquired from a bitstream into a syntax structure of an existing parameter set and/or a preset syntax structure and includes tool parameters and/or control parameters; and the encoder writes identification number (ID) (s) of the parameter sets and/or virtual parameter sets into a bitstream. Using the method, encoding and decoding efficiency is improved.

公开(公告)号：US10659813B2

公开(公告)日：2020-05-19

申请号：US14783852

申请日：2014-03-25

Applicant: ZTE Corporation

Inventor： Hongwei Li ,  Ming Li ,  Ping Wu ,  Guoqiang Shang ,  Yutang Xie

IPC: H04N19/176 ,  H04N19/597 ,  H04N13/161 ,  H04N19/44

Abstract: Disclosed is a method for coding and decoding depth information, and the method includes: data in original Depth Look-up Tables (DLTs) of selected views are combined to establish a unified DLT, a value of the number of elements in the unified DLT and each element in the unified DLT are coded respectively and a coded value and each coded element are transmitted to a decoder; and depth information of each view is coded by taking the unified DLT as a whole or in portions and coded depth information of each view is transmitted to the decoder. Further disclosed are a system and device for coding and decoding depth information; by means of the disclosure, it is possible to reduce redundancy of coding information and improve coding and decoding efficiency.

公开(公告)号：US20180167623A1

公开(公告)日：2018-06-14

申请号：US15580893

申请日：2016-06-06

Applicant: TONGJI UNIVERSITY ,  ZTE CORPORATION

Inventor： Tao Lin ,  Ming Li ,  Ping Wu ,  Guoqiang Shang ,  Zhao Wu

IPC: H04N19/176 ,  H04N19/182

CPC classification number: H04N19/176 ,  H04N19/17 ,  H04N19/182 ,  H04N19/186 ,  H04N19/593 ,  H04N19/70

Abstract: Disclosed are an image encoding and decoding method, image processing device, and computer storage medium, comprising: when using one of a palette and a pixel-string encoding replication means to replicate the encoding of a currently encoded block, generating a new palette color according to the pixels of said currently encoded block; according to said new palette color and/or palette color candidate set shared by the palette and the pixel-string encoding replication means, generating the palette of said current encoded block; using said palette to replicate the encoding of the palette and the pixel string, and generate a video code stream comprising the replication means and replication parameters. The video code stream is parsed, and at least one of the following information is obtained: the replication means, replication parameters, and new palette color of the palette and pixel-string decoding replication; according to said new palette color and/or palette color candidate set shared by the palette and the pixel-string decoding replication means, generating a palette; using said palette to replicate the decoding of the palette and the pixel string.