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.

公开(公告)号：US20180027235A1

公开(公告)日：2018-01-25

申请号：US15549408

申请日：2016-02-05

Applicant: TONGJI UNIVERSITY ,  ZTE Corporation

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

IPC: H04N19/129 ,  H04N19/593 ,  H04N19/44 ,  H04N19/176

Abstract: An image coding method and apparatus, and an image decoding method and apparatus are provided. In the coding method, a scanning manner parameter of a coding block is determined, and the scanning manner parameter may include at least one of: a region indication parameter used for determining a scanning region of the coding block and a scanning indication parameter used for determining a scanning order of pixels in a scanning region of the coding block; predicted values of part or all of pixels in the coding block are determined according to the scanning manner parameter; and the coding block is coded according to the predicted values, and a coding result is written into a bitstream.