Zte Corporation

Xi'an Zhongxing New Software Co., Ltd.

Tongji University

Shanghai Jiaotong University

Zhao Wu

Ping Wu

Guoqiang Shang

Ming Li

Tao Lin

Yiling Xu

Cheolkon Jung

Shengtao Yu

Jun Sun

Ying Gao

Qiuting Li

Qiaozhou Lin

Pinlong Cai

Shaowei Xie

Ying Hu

Wenjun Zhang

Rui Chen

Yunfeng Guan

Xiaoquan Hua

Liping Zhao

Shuhui Wang

Linyao Gao

Kailun Zhou

Peng Ke

Puyue Hou

Lizhi Hou

Provided are a data processing method and apparatus, a communication node, and a storage medium. The data processing method includes determining multi-frame combined point cloud information; writing the multi-frame combined point cloud information into media streams of combined point cloud data; and sending, according to the multi-frame combined point cloud information, the media streams of the combined point cloud data to a receiving end separately.

Data processing method and apparatus, communication node and storage medium

Provided are a data transmission method, apparatus and device, and a storage medium. The data transmission method includes the following: receiving current status information sent by a client; determining status-dependent point cloud spatial region information corresponding to the current status information according to the current status information; selecting status-dependent point cloud spatial region data corresponding to the status-dependent point cloud spatial region information; and sending the status-dependent point cloud spatial region information and the status-dependent point cloud spatial region data to the client.

Data transmission method, apparatus, and device, and storage medium

Disclosed are a video coding method and apparatus, a video decoding method and apparatus, an electronic device and a storage medium. The video coding method may include: acquiring a video picture, wherein the video picture is at least one frame of picture of a video; and performing weighted predictive coding of the video picture to generate a picture code stream, wherein the weighted predictive coding uses at least one set of weighted prediction identification information and parameters.

Video encoding method and apparatus, video decoding method and apparatus, and electronic device and storage medium

Provided are a picture encoding method, a picture encoding apparatus, a picture decoding method, a picture decoding apparatus, an electronic device and a storage medium. The encoding method includes: acquiring a video picture, and determining a picture feature of the video picture; determining in-loop identification information and out-loop identification information according to the picture feature; processing the video picture according to the in-loop identification information and the out-loop identification information; and encoding the processed video picture to generate a code stream, and writing the in-loop identification information and the out-loop identification information into the code stream. Therefore, the processing of a video picture is achieved both encoding and decoding out-loop and encoding and decoding in-loop according to the picture feature during a picture transmission process, thereby effectively improving the video encoding and decoding efficiency and improving the quality of a decoded picture at the same code rate.

Picture encoding method and apparatus, picture decoding method and apparatus, electronic device and storage medium

Provided in embodiments of the present disclosure are a media data processing method, an apparatus and a system. The method comprises: obtaining an optical signal of a sampling point by a collection device at the source end in an acquisition of media data; acquiring an optical signal intensity of the optical signal of the sampling point and a display brightness of a display device at destination end; determining an opto-electronic transfer control parameter according to the optical signal intensity of the optical signal of the sampling point and the display brightness; performing opto-electronic transfer on the optical signal of the sampling point according to the opto-electronic transfer control parameter to obtain a transferred electrical signal; and encoding the electrical signal and the opto-electronic transfer control parameter to obtain a bitstream.

Media data processing method, apparatus and system

Methods, apparatus, and systems for providing consistent immersive media viewing experiences to user while reducing bandwidth consumption are disclosed. In one example aspect, a method for processing multimedia content includes determining, for a conversion between a frame of panoramic media content comprising multiple segments and a bitstream representation of the frame of panoramic media content, multiple sets of rank information associated with the frame. Each set of the rank information indicates a priority level for processing a segment of the frame of panoramic media content. The method also includes performing the conversion based on the multiple sets of rank information.

Rank information in immersive media processing

Provided are an image processing method, apparatus and system, a network device, a terminal and a storage medium. The method includes: acquiring composition indication information for indicating a composition and display manner of regions of interest (ROIs) in a video image; and generating a media stream of the video image based on at least the composition indication information, i.e., writing the composition indication information into a code stream of the video image.

Method and system of image processing with composition and display of regions of interest

Techniques for encoding or decoding digital video or pictures include acquiring a video bitstream that includes an encoded video image that is a two-dimensional image comprising multiple regions of a panoramic image in three-dimensional coordinates, extracting neighboring information for the multiple regions, performing, using the neighboring information, post-processing of a video image decoded from the video bitstream, and generating a display image from the video image after the post-processing.

Immersive video bitstream processing

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.

Image encoding and decoding methods, image processing device, and computer storage medium

Provided is an image encoding method. The method includes: determining an intra prediction mode of an encoding block, and constructing a first prediction value of the encoding block according to the intra prediction mode; determining a filtering parameter according to the first prediction value and an original value of the encoding block, where the filtering parameter includes a filtering indication parameter; in a case where the filtering indication parameter indicates performing filtering processing on the first prediction value, performing the filtering processing on the first prediction value to obtain an intra prediction value; calculating a prediction difference parameter according to a difference between the original value of the encoding block and the intra prediction value; and encoding the intra prediction mode, the filtering parameter, and the prediction difference parameter, and writing encoded bits into a bitstream.

Image encoding method, decoding method, encoder, and decoder

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.

Image coding and decoding methods, image processing device and computer storage medium

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.

Planar prediction mode for visual media encoding and decoding

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.

Video encoding and decoding methods and apparatus

Provided is a bitstream processing method, including: acquiring auxiliary information in a bitstream, where the auxiliary information includes at least one of bitstream information for transcoding or bitstream information for supporting transcoding; and transcoding the bitstream by using the auxiliary information and generating a transcoded bitstream. Further provided are a bitstream processing device and a storage medium.

Bitstream processing method and device

An image coding method and apparatus and an image decoding method and apparatus are provided by the present invention. 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 invention 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.

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Shenzhen, China

Zhao Wu