公开(公告)号：US20210218965A1

公开(公告)日：2021-07-15

申请号：US17214520

申请日：2021-03-26

Applicant: ZTE Corporation

Inventor： Ming LI ,  Ping WU ,  Zhao WU

IPC: H04N19/119 ,  H04N19/124 ,  H04N19/436 ,  H04N19/70 ,  H04N19/174

Abstract: Techniques for encoding, decoding, and extracting one or more bitstreams to form one or more sub-bitstreams are described. In one example aspect, a method for video or picture processing includes partitioning a picture into one or more tiles and generating one or more bitstreams using one or more configurations based on the one or more tiles. Generating each of the one or more bitstreams includes partitioning each of the one or more tiles into one or more slices, and performing, for each slice among the one or more slices a first encoding step to encode a tile identifier in a header of the slice, and a second encoding step to encode, in the header of the slice, a second address of the slice that indicates a location of the slice in the tile.

公开(公告)号：US20200351507A1

公开(公告)日：2020-11-05

申请号：US16957760

申请日：2018-12-19

Applicant: ZTE Corporation

Inventor： Ming LI ,  Zhao WU ,  Ping WU

IPC: H04N19/174 ,  H04N19/44 ,  H04N19/85 ,  H04N19/70

Abstract: A method and apparatus for decoding a video bitstream, a method and apparatus for generating a video bitstream, storage medium and an electronic device are provided. The method for decoding the video bitstream includes that: a first parameter of a reference position of a slice in a video picture is acquired; a second parameter of the slice is acquired, the second parameter being used for determining a starting position of the slice in the video picture; and a starting position coordinate parameter of the slice in the video picture is calculated according to the first parameter and the second parameter.

公开(公告)号：US20170302958A1

公开(公告)日：2017-10-19

申请号：US15513495

申请日：2015-09-22

Applicant: ZTE CORPORATION

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

IPC: H04N19/55 ,  H04N19/174 ,  H04N19/132 ,  H04N19/82 ,  H04N19/105

CPC classification number: H04N19/55 ,  H04N19/105 ,  H04N19/117 ,  H04N19/132 ,  H04N19/157 ,  H04N19/164 ,  H04N19/174 ,  H04N19/176 ,  H04N19/426 ,  H04N19/436 ,  H04N19/593 ,  H04N19/70 ,  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：US20150358623A1

公开(公告)日：2015-12-10

申请号：US14650942

申请日：2012-11-01

Applicant: ZTE CORPORATION

Inventor： Ming LI ,  Ping WU

IPC: H04N19/159 ,  H04N19/82 ,  H04N19/117 ,  H04N19/174 ,  H04N19/172

CPC classification number: H04N19/159 ,  H04N19/107 ,  H04N19/117 ,  H04N19/137 ,  H04N19/14 ,  H04N19/164 ,  H04N19/172 ,  H04N19/174 ,  H04N19/46 ,  H04N19/70 ,  H04N19/82

Abstract: Disclosed are methods for coding and decoding at picture layer and slice layer, and corresponding coder and decoder. The method comprises: coder selecting, according to network transmission state and video characteristic, different constrained loop filter (CLF) and/or constrained intra-prediction (CIP) control modes for one of the following three objects: 1: different video sequences; 2: pictures in different periods in the same video sequence; 3: different slices in the same picture; according to the selected CLF and/or CIP control mode, coding CLF and/or CIP control flag bits in picture layer parameter set and slice layer parameter set; and a decoder parsing slice layer bitstream containing header information, picture layer parameter set and/or slice layer parameter set, and according to the obtained CLF and/or CIP control flag bits, decoding picture and slice by using the corresponding CLF and/or CIP control mode. Through the present invention, a desirable tradeoff can be achieved between coding efficiency and error resilience performance.

Abstract translation: 公开了图像层和切片层以及对应的编码器和解码器的编码和解码方法。 该方法包括：根据网络传输状态和视频特征，对以下三个对象之一的不同约束环路滤波器（CLF）和/或约束帧内预测（CIP）控制模式进行编码器选择：1：不同视频序列; 2：同一视频序列中不同时期的图片; 3：同一张图片中的不同切片; 根据选择的CLF和/或CIP控制模式，对图层参数集和切片层参数集中的CLF和/或CIP控制标志位进行编码; 以及解码器解码包含标题信息，图像层参数集和/或片层参数集的片层比特流，并且根据获得的CLF和/或CIP控制标志位，通过使用相应的CLF和/或CIP解码图片和片 控制模式。 通过本发明，可以在编码效率和错误恢复性能之间实现期望的折衷。

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：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：US20170013261A1

公开(公告)日：2017-01-12

申请号：US15108614

申请日：2014-12-29

Applicant: TONGJI UNIVERSITY ,  ZTE CORPORATION

Inventor： Tao LIN ,  Ming LI ,  Guoqiang SHANG

IPC: H04N19/124 ,  H04N19/46 ,  H04N19/176 ,  H04N19/146 ,  H04N19/154

CPC classification number: H04N19/124 ,  H04N19/146 ,  H04N19/154 ,  H04N19/176 ,  H04N19/46 ,  H04N19/70

Abstract: Provided are a method and device for coding an image, a method and device for decoding an image. The method for coding the image includes that: coding mode parameters and parameter groups of one coding block are divided into multiple types of coding mode parameters and parameter groups corresponding to the multiple types of coding mode parameters according to a specified rule respectively; Quantization Parameters (QPs) included in the multiple types of coding mode parameters are determined according to a preset target bit rate; a QP of the coding block is determined according to reconstruction quality for the coding block; a coding mode parameter to be used is selected from the multiple types of coding mode parameters according to the QP of the coding block, a parameter group corresponding to the selected coding mode parameter is set, and a QP difference is calculated; and the coding mode parameter, the parameter group used by the coding block and the QP difference are written into a video bitstream.

Abstract translation: 提供了用于对图像进行编码的方法和装置，用于对图像进行解码的方法和装置。 编码图像的方法包括：编码模式参数和一个编码块的参数组分别根据规定的规则分为对应于多种编码模式参数的多种类型的编码模式参数和参数组; 根据预设的目标比特率来确定包含在多种类型的编码模式参数中的量化参数（QPs）; 根据编码块的重构质量确定编码块的QP; 根据编码块的QP从多种类型的编码模式参数中选择要使用的编码模式参数，设置与所选编码模式参数相对应的参数组，并计算QP差; 并且编码模式参数，由编码块使用的参数组和QP差被写入视频比特流。

公开(公告)号：US20160330455A1

公开(公告)日：2016-11-10

申请号：US14912204

申请日：2014-08-15

Applicant: TONGJI UNIVERSITY ,  ZTE CORPORATION

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

IPC: H04N19/182 ,  H04N19/154 ,  H04N19/91 ,  H04N19/593

CPC classification number: H04N19/182 ,  H04N19/11 ,  H04N19/154 ,  H04N19/172 ,  H04N19/503 ,  H04N19/593 ,  H04N19/61 ,  H04N19/91

Abstract: The present invention provides an image compression method and device. When a coding block is coded, first, second and third reconstructed reference pixel sample sets, of which position labels are not intersected, are searched to obtain one or more optimal fixed-width variable-length pixel sample matching strings according to a preset evaluation criterion. Each matching string is represented by a matching distance and a matching length. For a sample of which a match is not found, a pseudo matching sample is calculated from an adjacent sample. Matching string searching may be performed in a pixel component plane only, and may also be performed in a three-component individually intersected pixel space in a packed format. Optional quantization or transformation-quantization coding, predictive coding, differential coding and entropy coding are further executed on the matching distance, the matching length and a matching residual. Multiple sample division manners and arrangement manners may be adopted for matching, and optimal ones are selected from them. For the same Coding Unit (CU), conventional-prediction-based hybrid coding is simultaneously performed, and an optimal result is selected finally.

Abstract translation: 本发明提供一种图像压缩方法和装置。 当对编码块进行编码时，搜索位置标签不相交的第一，第二和第三重建参考像素样本集合，以根据预设的评估标准获得一个或多个最优固定宽度可变长度像素样本匹配串 。 每个匹配的字符串由匹配的距离和匹配的长度表示。 对于未找到匹配的样本，从相邻样本计算伪匹配样本。 匹配字符串搜索可以仅在像素分量平面中执行，并且也可以以打包格式在三分量单独相交的像素空间中执行。 在匹配距离，匹配长度和匹配残差上进一步执行可选量化或变换量化编码，预测编码，差分编码和熵编码。 可以采用多种样本划分方式和排列方式进行匹配，从中选出最佳选择方式。 对于相同的编码单元（CU），同时执行基于常规预测的混合编码，最终选择最佳结果。

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。