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：US11647196B2

公开(公告)日：2023-05-09

申请号：US17255044

申请日：2019-05-24

Applicant: ZTE CORPORATION

Inventor： Ming Li

IPC: H04N19/129 ,  H04N19/117 ,  H04N19/159 ,  H04N19/176

CPC classification number: H04N19/129 ,  H04N19/117 ,  H04N19/159 ,  H04N19/176

Abstract: Provided are a method and apparatus for encoding a picture, a method and apparatus for decoding a picture, an electronic device, and a system. The method for encoding a picture includes: determining a prediction value of an encoded block, and calculating a prediction residual between the encoded block and the prediction value; performing a transformation on the prediction residual at least once to obtain transform data, and determining transform coefficients using the transform data; determining a scanning mode of the transform coefficients and a size of the coefficient group of the transform coefficients, dividing the transform coefficients into at least one coefficient group, scanning transform coefficients comprised in each of the at least one coefficient group according to the scanning mode, and converting the transform coefficients into at least one syntax element; and encoding the size of the coefficient group and a value of the at least one syntax element, and writing encoded bits to a code stream.

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：US11165944B2

公开(公告)日：2021-11-02

申请号：US16301929

申请日：2017-03-10

Applicant: ZTE CORPORATION

Inventor： Ming Li ,  Qiaozhou Lin ,  Guoqiang Shang ,  Zhao Wu ,  Shengtao Yu ,  Cheolkon Jung

IPC: H04N19/70 ,  G09G5/00 ,  H04N5/232 ,  H04N19/85 ,  H04N19/98 ,  G09G3/34 ,  G09G5/10 ,  H04B10/079

Abstract: Several embodiments of the present invention are described for a media data processing method, apparatus and system. An example method comprises: obtaining an optical signal of a sampling point by a collection device at the source end in an acquisition of media data; according to an opto-electronic transfer control parameter, performing opto-electronic transfer for the optical signal of the sampling point to obtain a transferred electrical signal, wherein the opto-electronic transfer control parameter is determined on the basis of an optical signal intensity of the optical signal of the sampling point; and encoding the electrical signal and opto-electronic transfer control parameter to obtain a bitstream. According to the embodiment of the present invention, the problem of the lower accuracy in the media data processing is solved, thereby obtaining the effect of improving the accuracy in the media data processing.

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：US20200280718A1

公开(公告)日：2020-09-03

申请号：US16700399

申请日：2019-12-02

Applicant: Tongji University ,  ZTE Corporation

Inventor： Tao Lin ,  Ming Li ,  Guoqiang Shang

IPC: H04N19/119 ,  H04N19/176 ,  H04N19/51 ,  H04N19/517 ,  H04N19/12 ,  H04N19/513

Abstract: The disclosure discloses a method and device for coding an image and a method and device for decoding an image. The coding includes that: a coding block is partitioned into L micro-blocks, wherein L is a preset number of micro-block partitions in the decoding block; Displacement Vectors (DVs) between the micro-blocks and reference micro-blocks in a preset reconstructed pixel sample set are determined, wherein the DVs are vectors between pixel positions of the reference micro-blocks and pixel positions of the micro-blocks in a preset pixel coordinate system: and the DVs are coded and written into a bitstream. By the methods and the devices, the problem of low image compression and decompression efficiency during image coding and decoding in the related technology is solved, and tire effect of improving image coding and decoding efficiency is further achieved.

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：US10666971B2

公开(公告)日：2020-05-26

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: H04N7/12 ,  H04N11/02 ,  H04N11/04 ,  H04N19/59 ,  H04N19/105 ,  H04N19/136 ,  H04N19/182 ,  H04N19/176 ,  H04N19/593 ,  H04N19/70

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：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.