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.

公开(公告)号：US20170238250A1

公开(公告)日：2017-08-17

申请号：US15501529

申请日：2014-12-09

Applicant: ZTE Corporation

Inventor： Yang GUO ,  Shengjie GENG ,  Jing LIU ,  Ming LI ,  Xinbing WANG

IPC: H04W52/02 ,  H04L5/00 ,  H04B7/26 ,  H04W4/00 ,  H04W72/04

CPC classification number: H04W52/0216 ,  H04B7/2656 ,  H04L5/0055 ,  H04W4/80 ,  H04W52/0229 ,  H04W72/0446 ,  H04W84/18 ,  Y02D70/00 ,  Y02D70/124 ,  Y02D70/142 ,  Y02D70/449

Abstract: Provided are information interaction methods, devices and system for a Wireless Body Area Network (WBAN). The method includes that: a Hub sends beacon frames to nodes according to a preset superframe structure and receives, according to a preset superframe structure, information sent by the nodes. The preset superframe structure includes three phases. The first phase includes a first beacon period, a first timeslot period and a second timeslot period, the first timeslot period being used by nodes to send an emergency service and the second timeslot period being used by nodes to send an ordinary service. The second phase includes a second beacon period and a third timeslot period, the third timeslot period being used by nodes to complementarily send a service. The third phase includes a fourth timeslot period, the fourth timeslot period being used by nodes to send a sleep application and/or an access application.

公开(公告)号：US20170223371A1

公开(公告)日：2017-08-03

申请号：US15322143

申请日：2014-11-19

Applicant: ZTE CORPORATION

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

IPC: H04N19/44 ,  H04N19/184 ,  H04N19/597 ,  H04N19/70 ,  H04N19/423

CPC classification number: H04N19/44 ,  H04L65/4084 ,  H04L69/24 ,  H04N19/184 ,  H04N19/423 ,  H04N19/597 ,  H04N19/70 ,  H04N21/234327 ,  H04N21/6332 ,  H04N21/6377

Abstract: A device capability negotiation method includes receiving, by a first device, a multilayer video data request sent by a second device, and sending, by the first device, response information to the second device. The response information includes at least one of the following information types: decoding capability information needed for decoding a multilayer video code stream, decoding capability information needed for decoding various layers in the multilayer video code stream, and decoding capability information needed for decoding different output layer combinations in the multilayer video code stream. Also disclosed are a device capability negotiation apparatus, and a computer storage medium.

公开(公告)号：US20170006285A1

公开(公告)日：2017-01-05

申请号：US15114278

申请日：2014-12-01

Applicant: TONGJI UNIVERSITY ,  ZTE Corporation

Inventor： Tao LIN ,  Ming LI ,  Guoqiang SHANG

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

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 the effect of improving image coding and decoding efficiency is further achieved.

Abstract translation: 本公开公开了一种用于对图像进行编码的方法和装置，以及用于对图像进行解码的方法和装置。 该编码包括：编码块被分割成L个微块，其中L是解码块中的预定数量的微块分区; 确定预置的重建像素样本集中的微块和参考微块之间的位移向量（DV），其中DV是参考微块的像素位置与预设中的微块的像素位置之间的向量 像素坐标系; 并且将DV编码并写入比特流。 通过方法和装置，解决了相关技术中图像编码和解码过程中低图像压缩和解压缩效率的问题，进一步实现了提高图像编码和解码效率的效果。

公开(公告)号：US20210243447A1

公开(公告)日：2021-08-05

申请号：US17181739

申请日：2021-02-22

Applicant: ZTE Corporation

Inventor： Ming LI ,  Ping WU ,  Zhao WU

IPC: H04N19/132 ,  H04N19/105 ,  H04N19/159 ,  H04N19/176

Abstract: Devices, systems and methods for deriving intra prediction samples when the intra prediction mode for a coding block is the planar mode are described. In an aspect, a method for video coding includes selecting a first set of reference samples that are reconstructed neighboring samples of a current block, and determining a prediction value for a prediction sample of the current block by interpolating at least one of the first set and a second set of reference samples, where a reference sample of the second set of reference samples is based on a weighted sum of a first sample and a second sample from the first set of reference samples, and where the reference sample is aligned horizontally with the first sample, aligned vertically with the second sample, and positioned on an opposite side of the prediction sample with respect to either the first or the second sample.

公开(公告)号：US20210168369A1

公开(公告)日：2021-06-03

申请号：US17255044

申请日：2019-05-24

Applicant: ZTE CORPORATION

Inventor： Ming LI

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

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：US20210067834A1

公开(公告)日：2021-03-04

申请号：US16958644

申请日：2018-12-06

Applicant: ZTE CORPORATION

Inventor： Ming LI ,  Zhao WU ,  Ping WU ,  Xiaoquan HUA

IPC: H04N21/4728 ,  H04N21/2662 ,  H04N19/187 ,  H04N19/30 ,  H04N19/70 ,  H04N21/2343 ,  H04N19/174

Abstract: Provided are a method and apparatus for processing a video bitstream, a network device and a readable storage medium. The method includes: parsing a bitstream to be extracted, and acquiring parameter information about an extractable sub-bitstream from a data unit of the bitstream to be extracted; determining a picture type parameter value of a random access picture in the sub-bitstream according to the parameter information; and configuring, in a process of extracting the sub-bitstream from the bitstream to be extracted, a picture type parameter value in a data unit of the sub-bitstream according to the picture type parameter value of the random access picture.

公开(公告)号：US20180242023A1

公开(公告)日：2018-08-23

申请号：US15507249

申请日：2015-05-06

Applicant: TONGJI UNIVERSITY ,  ZTE CORPORATION

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

IPC: H04N19/91 ,  H04N19/182 ,  H04N19/157

CPC classification number: H04N19/91 ,  H04N19/157 ,  H04N19/182 ,  H04N19/517 ,  H04N19/593

Abstract: An image coding method and apparatus and an image decoding method and apparatus are provided by the present document. The image coding method includes: implementing matching coding for pixels of an input video image to obtain one or more matching relationship parameters, herein the matching relationship parameters are parameters used in a process of constructing predicted values and/or reconstructed values of the pixels in the image; mapping the matching relationship parameters to obtain mapped values of the matching relationship parameters; and performing entropy coding on the mapped values of the matching relationship parameters. The present document addresses the problem existing in the conventional art which is caused by the direct implementation of entropy coding for matching relationship parameters and achieves a good data compression effect through entropy coding.

公开(公告)号：US20170332073A1

公开(公告)日：2017-11-16

申请号：US15529998

申请日：2015-11-17

Applicant: TONGJI UNIVERSITY ,  ZTE CORPORATION

Inventor： Tao LIN ,  Ming LI ,  Guoqiang SHANG

IPC: H04N19/103 ,  H04N19/182 ,  H04N19/593 ,  H04N19/176 ,  H04N19/186

CPC classification number: H04N19/103 ,  H04N19/176 ,  H04N19/182 ,  H04N19/186 ,  H04N19/593

Abstract: Disclosed is an image coding method, including: determining a coding mode of a coding block; and performing coding on the coding block using multiple coding modes, including performing coding on pixel sample segments in the coding block using one of the multiple coding modes. Further disclosed is an image decoding method, including: parsing bitstream data of a decoding block, and determining decoding modes of pixel sample segments of the decoding block; and performing hybrid decoding on the decoding block using multiple decoding modes, including performing decoding on the pixel sample segments of the decoding block using corresponding decoding modes. The technical scheme described above can fully exploit and utilize the characteristics of each coding image region in the image to improve the image compression performance.

公开(公告)号：US20170302935A1

公开(公告)日：2017-10-19

申请号：US15505614

申请日：2015-08-21

Applicant: ZTE CORPORATION

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

IPC: H04N19/176 ,  H04N19/103 ,  H04N19/174 ,  H04N19/70

CPC classification number: H04N19/176 ,  H04N19/103 ,  H04N19/174 ,  H04N19/593 ,  H04N19/70

Abstract: The predictive coding method includes: configuring types of slices; when coding a slice of an inter prediction type, configuring a picture where the slice is located as a reference picture for the slice, using a first coding scheme to code coding blocks employing an intra block copying (IBC) mode in the slice, and, when coding a slice of an intra prediction type, using a second coding scheme that is different from the first coding scheme to code coding blocks employing the IBC mode in the slice. Also provided are the corresponding decoding method, the corresponding coder/decoder, and the electronic device. Different coding schemes are employed to code coding blocks employing the IBC mode in the slice of an inter prediction type and those in the slice of an intra prediction type. Also provided are picture padding method and device.