公开(公告)号：US20220078479A1

公开(公告)日：2022-03-10

申请号：US17531518

申请日：2021-11-19

Applicant: ZTE Corporation

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

IPC: H04N19/55 ,  H04N19/105 ,  H04N19/176 ,  H04N19/164 ,  H04N19/426 ,  H04N19/70 ,  H04N19/157 ,  H04N19/117 ,  H04N19/436 ,  H04N19/593 ,  H04N19/132 ,  H04N19/174 ,  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：US20220038721A1

公开(公告)日：2022-02-03

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

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：US20210409779A1

公开(公告)日：2021-12-30

申请号：US17468564

申请日：2021-09-07

Applicant: ZTE Corporation

Inventor： Ming LI ,  Ping WU

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

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：US20210400295A1

公开(公告)日：2021-12-23

申请号：US17468435

申请日：2021-09-07

Applicant: ZTE Corporation

Inventor： Ming LI ,  Ping WU

IPC: H04N19/46 ,  H04N19/119 ,  H04N19/159 ,  H04N19/176

Abstract: A bitstream processing method includes parsing a bitstream to obtain a picture region flag from a data unit corresponding to a picture region in the bitstream, wherein the picture region includes N picture blocks, where N is an integer; and selectively generating, based on a value of the picture region flag, a decoded representation of the picture region from the bitstream. wherein The selectively generating includes in case that the value of the picture region flag is a first value, using a first decoding method to generate the decoded representation from the bitstream; and in case that the value of the picture region flag is a second value different than the first value, using a second decoding method different from the first decoding method to generate the decoded representation from the bitstream.

公开(公告)号：US20190327523A1

公开(公告)日：2019-10-24

申请号：US16349917

申请日：2017-10-28

Applicant: SHANGHAI JIAOTONG UNIVERSITY ,  ZTE CORPORATION

Inventor： Yiling XU ,  Wenjun ZHANG ,  Ying HU ,  Zhao WU ,  Ming LI ,  Ping WU ,  Guoqiang SHANG

IPC: H04N21/442 ,  H04N21/81 ,  H04N21/84 ,  H04N21/235 ,  H04N21/6587

Abstract: Provided are a media information processing method, apparatus and system. The method comprises: generating media indication information according to a media state and/or a media state change, wherein the media indication information at least comprises one of the following: a media identifier, a media state type, a media state change type, a media state description, and a media state change description; and sending or storing the media indication information. By means of the present disclosure, the problem in the relevant art that the covered content in media information is incomplete during a media interaction is solved, thereby achieving the effect of improving the media information integrity and expandability.

公开(公告)号：US20190289289A1

公开(公告)日：2019-09-19

申请号：US16084065

申请日：2017-03-18

Applicant: ZTE Corporation

Inventor： Cheolkon JUNG ,  Shengtao YU ,  Peng KE ,  Ming LI ,  Ping WU ,  Guoqiang SHANG ,  Zhao WU

IPC: H04N19/124 ,  H04N19/172 ,  H04N19/186 ,  H04N19/85 ,  H04N19/98 ,  H04N19/117 ,  H04N19/44

Abstract: Provided are picture encoding and decoding methods and apparatuses, and a picture encoding and decoding system. The picture encoding method includes: determining an adjustment factor according to pixel sampling values of a video picture; converting the video picture according to the adjustment factor, and encoding the converted video picture; and writing the adjustment factor into a bitstream obtained by encoding the converted video picture.

公开(公告)号：US20190268593A1

公开(公告)日：2019-08-29

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 ,  H04N19/42 ,  H04N19/176

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：US20190110079A1

公开(公告)日：2019-04-11

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 ,  H04N19/103 ,  H04N19/176 ,  H04N19/46

CPC classification number: H04N19/70 ,  H04N19/103 ,  H04N19/11 ,  H04N19/176 ,  H04N19/42 ,  H04N19/46 ,  H04N19/463 ,  H04N19/52 ,  H04N19/537 ,  H04N19/593 ,  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：US20190014331A1

公开(公告)日：2019-01-10

申请号：US16067420

申请日：2016-11-15

Applicant: ZTE CORPORATION

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

IPC: H04N19/196 ,  H04N19/174 ,  H04N19/117 ,  H04N19/154

Abstract: The present disclosure provides picture encoding and decoding methods, picture encoding and decoding devices as well as a decoder and an encoder. The picture decoding method includes: parsing a video bitstream to obtain candidate reshaping parameters from a picture-layer and/or slice-layer data unit of the video bitstream, and determining a reshaping parameter used for reshaping a reconstructed picture according to the obtained candidate reshaping parameters; and reshaping the reconstructed picture by using the reshaping parameter. The reconstructed picture is a picture obtained by decoding the video bitstream before performing the reshaping. The picture-layer and/or slice-layer data unit includes at least one of the following data units: a picture-layer parameter set and/or a slice-layer parameter set different from a picture parameter set (PPS), a parameter data unit which are included in an access unit (AU) corresponding to the reconstructed picture, slice header and a system-layer picture parameter data unit.

公开(公告)号：US20180035132A1

公开(公告)日：2018-02-01

申请号：US15551945

申请日：2016-01-25

Applicant: TONGJI UNIVERSITY ,  ZTE Corporation

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

IPC: H04N19/59 ,  H04N19/593 ,  H04N19/70 ,  H04N19/176

Abstract: The present disclosure provides a method and device for image coding and a method and device for image decoding, and the method includes: a representative pixel set of a coding block is constructed, and information for constructing the representative pixel set is determined; predicted values of pixel samples in the coding block are constructed, a generation manner for the predicted values including: constructing the predicted values of the pixel samples according to reconstructed pixel samples in an image region outside the coding block and pixel values of the representative pixel set; and the information for constructing the representative pixel set and information for constructing the predicted values are coded and written into a video bitstream.