公开(公告)号：US20250039477A1

公开(公告)日：2025-01-30

申请号：US18691521

申请日：2022-10-12

Applicant: ZTE Corporation

Inventor： Cheng HUANG ,  Yaxian BAI

IPC: H04N21/2343 ,  H04N21/44 ,  H04N21/4402

Abstract: Embodiments of the present disclosure provide a video bitstream encapsulation method and apparatus, a video bitstream decoding method and apparatus, and a video bitstream access method and apparatus. The video bitstream encapsulation method includes: encapsulating information of a Library Random Access Point (LRAP) sample in a first video bitstream into a media container file in which the first video bitstream is encapsulated; and encapsulating information of a library picture sample of the LRAP sample into the media container file, wherein the library picture sample is a reference picture sample of the LRAP sample. The solution may solve the problems in the related art that a video encoding manner using a library picture as a reference picture cannot allow for efficient accessing and processing of a video bitstream containing a reference picture sample and the processing is complex. The information of the LRAP sample is directly encapsulated into the media container file, so as to facilitate identification of the LRAP sample which can serve as a random access point and a library picture sample referred to by the LRAP sample, thereby reducing the processing complexity while satisfying the compression efficiency and avoiding waste of transmission bandwidth.

公开(公告)号：US20240054682A1

公开(公告)日：2024-02-15

申请号：US18271128

申请日：2021-12-21

Applicant: ZTE Corporation

Inventor： Yaxian BAI ,  Cheng HUANG

IPC: G06T9/00 ,  G06T17/00

CPC classification number: G06T9/00 ,  G06T17/00 ,  G06T2210/56

Abstract: Provided are a three-dimensional point cloud data processing method and apparatus, a storage medium, and an electronic apparatus. The method includes: identifying, from a container file of a geometrically encoded point cloud bit stream of an original point cloud, one geometrically encoded point cloud tile base track and one or more geometrically encoded point cloud tile tracks, wherein the one geometrically encoded point cloud tile base track and one or more geometrically encoded point cloud tile tracks correspond to one or more three-dimensional spatial regions of the original point cloud; decoding geometrically encoded point cloud compression data encapsulated in the one or more geometrically encoded point cloud tile tracks, wherein the geometrically encoded point cloud compression data corresponds to partial regions of the one or more three-dimensional spatial regions; and rendering a point cloud in the partial three-dimensional spatial regions according to the decoded point cloud data.

公开(公告)号：US20230008979A1

公开(公告)日：2023-01-12

申请号：US17779759

申请日：2020-12-17

Applicant: ZTE Corporation

Inventor： Jing XU ,  Yaxian BAI

IPC: H04N21/845 ,  H04N21/854 ,  H04N21/239

Abstract: A MSS chunking method for an MP4 file, an MSS adapter, and a non-transitory computer-readable storage medium are disclosed. The method may include: receiving an MSS download request for downloading of at least one MSS chunk of a first MP4 file; determining, according to MSS chunk indexes and virtual chunk indexes of the first MP4 file, data segments in the first MP4 file corresponding to data of the at least one MSS chunk, each MSS chunk index containing a playing address of a respective MSS chunk of the first MP4 file, and each virtual chunk index containing a correspondence between the data of a respective MSS chunk and a respective one of data segments of the first MP4 file; sending a data segment download request to a media server and receiving data segments; and assembling contents of the data segments to generate the at least one MSS chunk.

公开(公告)号：US20220360819A1

公开(公告)日：2022-11-10

申请号：US17814762

申请日：2022-07-25

Applicant: ZTE Corporation

Inventor： Cheng HUANG ,  Yaxian BAI

IPC: H04N19/597 ,  H04N19/70 ,  G06T15/08 ,  G06T15/20

Abstract: Methods and apparatus for processing of volumetric visual data are described. One example method includes decoding, by a decoder, a bitstream containing volumetric visual information for a 3-dimensional scene that is represented as one or more atlas sub-bitstreams and one or more encoded video sub-bitstreams, reconstructing, using a result of decoding the one or more atlas sub-bitstreams and a result of decoding the one or more encoded video sub-bitstreams, the 3-dimensional scene, and rendering a target view of the 3-dimensional scene based on a desired viewing position and/or a desired viewing orientation.

公开(公告)号：US20240430488A1

公开(公告)日：2024-12-26

申请号：US18698250

申请日：2022-12-12

Applicant: ZTE CORPORATION

Inventor： Yi ZHOU ,  Wenjie ZOU ,  Yaxian BAI ,  Cheng HUANG

IPC: H04N19/82 ,  H04N19/117 ,  H04N19/182 ,  H04N19/30 ,  H04N19/42

Abstract: A loop filtering method, a video encoding method, a video decoding method, an electronic device, and a medium are provided. The loop filtering method includes: acquiring a first reconstructed video unit processed by a loop filter; performing pixel classification on the first reconstructed video unit; determining a scale factor corresponding to each class; and performing scale adjustment on the first reconstructed video unit according to the scale factor, so as to obtain a second reconstructed video unit.

公开(公告)号：US20240430477A1

公开(公告)日：2024-12-26

申请号：US18274011

申请日：2021-12-23

Applicant: ZTE Corporation

Inventor： Cheng HUANG ,  Yaxian BAI

IPC: H04N19/597 ,  H04N13/388 ,  H04N19/184

Abstract: Provided are a method and apparatus for processing volumetric media, a storage medium, and an electronic apparatus. The method includes: identifying a V3C track and a V3C component track from a container file of a V3C bitstream of the volumetric media; obtaining one or more atlas coding sub-bitstreams by decapsulating the V3C track, and obtaining one or more video coding sub-bitstreams that correspond to the one or more atlas coding sub-bitstreams by decapsulating the V3C component track; and generating V3C data of a 3D spatial region of the volumetric media based on the one or more atlas coding sub-bitstreams and the one or more video coding sub-bitstreams.

公开(公告)号：US20230360304A1

公开(公告)日：2023-11-09

申请号：US18246868

申请日：2021-09-23

Applicant: ZTE Corporation

Inventor： Yaxian BAI ,  Cheng HUANG

IPC: G06T15/00 ,  G06T7/11

CPC classification number: G06T15/00 ,  G06T7/11 ,  G06T2207/10028 ,  G06T2210/36 ,  G06T2210/56

Abstract: Provided are a point cloud data processing method and device, a storage medium and an electronic device. The method includes that: static geometry encoding point cloud data containing region information of a 3D scene is determined, the static geometry encoding point cloud data being represented by G-PCC item data; partial item data corresponding to partial region of the 3D scene in the static geometry encoding point cloud data is decoded; and the partial region of the 3D scene is rendered based on the decoded data. Part of required item data is determined according to user needs, so that the part of required item data can be obtained without traversing the complete point cloud data, which improves the decoding efficiency, shortens the decoding time, and shortens the rendering waiting time of users.

公开(公告)号：US20240283951A1

公开(公告)日：2024-08-22

申请号：US18652790

申请日：2024-05-01

Applicant: ZTE Corporation

Inventor： Yi ZHOU ,  Wenjie ZOU ,  Cheng HUANG ,  Yaxian BAI

IPC: H04N19/186 ,  H04N19/117 ,  H04N19/154 ,  H04N19/82

CPC classification number: H04N19/186 ,  H04N19/117 ,  H04N19/154 ,  H04N19/82

Abstract: Embodiments of the present disclosure provide a method and an apparatus for video processing, and a storage medium and an electronic apparatus. The method comprises: determining a neural network loop filtering enabled flag of a reconstructed video unit; setting, based on the neural network loop filtering enabled flag, an adaptive loop filtering enabled flag for the reconstructed video unit; and signaling at least one type of the following information: filter information related to neural network loop filter of the reconstructed video unit, and filter information related to adaptive loop filter of the reconstructed video unit.

公开(公告)号：US20230169719A1

公开(公告)日：2023-06-01

申请号：US17922086

申请日：2021-06-07

Applicant: ZTE Corporation

Inventor： Qiuting LI ,  Cheng HUANG ,  Yaxian BAI

IPC: G06T15/20 ,  G06T19/20 ,  G06F3/01

CPC classification number: G06T15/20 ,  G06T19/20 ,  G06F3/011 ,  G06T2219/2016

Abstract: Provided are a method and apparatus for processing immersive media data, a storage medium, and an electronic apparatus. The method comprises: acquiring immersive media data corresponding to a current viewing posture of a user, wherein a three-dimensional viewing space is used to limit viewing content of the user; and rendering the immersive media data corresponding to the current viewing posture, wherein when the current viewing posture is within the three-dimensional viewing space, the acquired immersive media data is rendered; or when the current viewing posture has moved or is moving outside the three-dimensional viewing space, the immersive media data is rendered according to handling information of the three-dimensional viewing space.

公开(公告)号：US20220366611A1

公开(公告)日：2022-11-17

申请号：US17816102

申请日：2022-07-29

Applicant: ZTE Corporation

Inventor： Yaxian BAI ,  Cheng HUANG

IPC: G06T9/00 ,  H04N19/597 ,  H04N19/70 ,  H04N19/169

Abstract: Methods, systems, and apparatus for processing of three-dimensional visual content are described. One example method of processing three-dimensional content includes parsing a level of detail (LoD) information of a bitstream containing three-dimensional (3D) content that is represented as one geometry sub-bitstream and one or more attribute sub-bitstreams; and generating, based on the LoD information, decoded information by decoding at least a portion of the geometry sub-bitstream and the one or more attribute sub-bitstreams corresponding to a desired level of detail; and reconstructing, using the decoded information, a three-dimensional scene corresponding at least to the desired level of detail. The bitstream conforms to a format organized according to multiple levels of details of the 3D content.