公开(公告)号：US20240187621A1

公开(公告)日：2024-06-06

申请号：US18404209

申请日：2024-01-04

Applicant: TENCENT AMERICA LLC

Inventor： Byeongdoo CHOI ,  Shan Liu ,  Stephan Wenger

IPC: H04N19/44 ,  H04N19/503

CPC classification number: H04N19/44 ,  H04N19/503

Abstract: A method and system for decoding a coded video sequence may include obtaining the coded video sequence, and decoding the coded video sequence. A a value of a temporal sublayer identifier of a video coding layer (VCL) network abstraction layer (NAL) unit in the coded video sequence is constrained to be less than or equal to a value of vps_max_sublayers_minus1, that specifies a maximum number of temporal sublayers that may be present in a layer in each coded video sequence referring to the video parameter set (VPS), in the VPS referred to by the VCL NAL unit.

公开(公告)号：US11997317B2

公开(公告)日：2024-05-28

申请号：US17710786

申请日：2022-03-31

Applicant: Tencent America LLC

Inventor： Byeongdoo Choi ,  Shan Liu ,  Stephan Wenger

IPC: H04N19/70 ,  H04N19/149 ,  H04N19/172 ,  H04N19/18

CPC classification number: H04N19/70 ,  H04N19/149 ,  H04N19/172 ,  H04N19/18

Abstract: Aspects of the disclosure provide methods and apparatuses for video data processing. In some examples, an apparatus for video data processing includes processing circuitry. For example, the processing circuitry determines a first syntax element for coding control in a first scope of coded video data in a bitstream. The first syntax element is associated with a coding tool of persistent Rice adaptation defined in a range extension of a video standard for a statistics based Rice parameter derivation in a residual coding. In response to the first syntax element being a first value indicative of disabling of the coding tool in the first scope, the processing circuitry decodes the first scope of coded video data that includes one or more second scopes of coded video data without invoking the coding tool.

公开(公告)号：US11991424B2

公开(公告)日：2024-05-21

申请号：US17969226

申请日：2022-10-19

Applicant: TENCENT AMERICA LLC

Inventor： Arianne Hinds ,  Rohit Abhishek ,  Stephan Wenger

IPC: H04N21/84 ,  H04N21/854

CPC classification number: H04N21/84 ,  H04N21/85406

Abstract: Analyzing the complexity of an object of a scene in a media steam (or media data) performed by at least one processor, is provided, including receiving immersive media data comprising a plurality of scenes from a content source; obtaining a respective object of a respective scene in the plurality of scenes, from the immersive media data; analyzing the respective scene to generate complexity information associated with the respective object of the respective scene; generating metadata associated with the respective object of the respective scene, the metadata comprising the complexity information; and determining whether to distribute the respective scene to a client for processing based on the generated metadata.

公开(公告)号：US11930499B2

公开(公告)日：2024-03-12

申请号：US17499673

申请日：2021-10-12

Applicant: TENCENT AMERICA LLC

Inventor： Shuai Zhao ,  Stephan Wenger ,  Shan Liu

IPC: H04W72/20 ,  H04W8/18 ,  H04W24/02 ,  H04W24/08 ,  H04W24/10 ,  H04W48/18 ,  H04W76/38

CPC classification number: H04W72/20 ,  H04W8/183 ,  H04W24/02 ,  H04W24/08 ,  H04W24/10 ,  H04W48/18 ,  H04W76/38

Abstract: A method of a service enabler architecture layer (SEAL) can include receiving a monitoring event subscription request for network connection status information at a network resource management server in the SEAL from a vertical application layer (VAL) server. The monitoring event subscription request can indicate a target VAL user equipment (UE), a type of the network connection status information, and a timeout period indicating an amount of time lapsed after the monitoring event subscription request was transmitted. The requested network connection status information is not transmitted after the timeout period. The network connection status information of the target VAL UE can be obtained from a wireless network system. A network connection status information response message can be transmitted from the network resource management server in the SEAL to the VAL server. The network connection status information response message can include the network connection status information of the target VAL UE.

公开(公告)号：US11902554B2

公开(公告)日：2024-02-13

申请号：US17888026

申请日：2022-08-15

Applicant: Tencent America LLC

Inventor： Byeongdoo Choi ,  Shan Liu ,  Stephan Wenger

IPC: H04N19/70 ,  H04N19/46 ,  H04N19/176 ,  H04N19/44 ,  H04N19/93

CPC classification number: H04N19/44 ,  H04N19/176 ,  H04N19/46 ,  H04N19/70 ,  H04N19/93

Abstract: A method of video encoding includes determining whether a plurality of constraint flags of a constraint information group are to be signaled for a subset of coding blocks, and signaling a gate flag indicating whether the plurality of constraint flags of the constraint information group are signaled. The gate flag is signaled in constraint information in a syntax structure of a coded video bitstream. In accordance with the signaled gate flag indicating that the plurality of constraint flags of the constraint information group are signaled, the method further includes signaling the plurality of constraint flags of the constraint information group in the constraint information in the syntax structure of the coded video bitstream. In accordance with the plurality of constraint flags being signaled in the constraint information, the method further includes encoding the subset of coding blocks based on the plurality of constraint flags.

公开(公告)号：US11871038B2

公开(公告)日：2024-01-09

申请号：US17710778

申请日：2022-03-31

Applicant: Tencent America LLC

Inventor： Byeongdoo Choi ,  Shan Liu ,  Stephan Wenger

IPC: H04N19/70

CPC classification number: H04N19/70

Abstract: Aspects of the disclosure provide methods and apparatuses for video data processing. In some examples, an apparatus for video data processing includes processing circuitry. For example, the processing circuitry determines a first syntax element for coding control in a first scope of coded video data in a bitstream. The first syntax element is associated with a second coding tool that is alternative to a first coding tool for Rice parameter derivation in a residual coding. In response to the first syntax element being a first value indicative of disabling of the second coding tool in the first scope, the processing circuitry decodes the first scope of coded video data that includes one or more second scopes of coded video data without invoking the second coding tool.

公开(公告)号：US11843782B2

公开(公告)日：2023-12-12

申请号：US17977903

申请日：2022-10-31

Applicant: TENCENT AMERICA LLC

Inventor： Byeongdoo Choi ,  Stephan Wenger ,  Shan Liu

IPC: H04N19/132 ,  H04N19/172 ,  H04N19/146 ,  H04N19/189

CPC classification number: H04N19/132 ,  H04N19/146 ,  H04N19/172 ,  H04N19/189

Abstract: There is included a method and apparatus comprising computer code configured to cause a processor or processors to perform acquiring an input bitstream comprising metadata and video data, decoding the video data, determining whether the metadata comprises at least one flag signaling at least one component of a picture size of at least one picture of the video data, and signaling, in a case where it is determined that the metadata comprises the at least one flag, a display device to display the at least one picture from the video data according to the at least one flag.

公开(公告)号：US11825128B2

公开(公告)日：2023-11-21

申请号：US17363927

申请日：2021-06-30

Applicant: TENCENT AMERICA LLC

Inventor： Arash Vosoughi ,  Sehoon Yea ,  Shan Liu ,  Byeongdoo Choi ,  Stephan Wenger

IPC: H04N19/91 ,  H04N19/167 ,  H04N19/119 ,  H04N19/172

CPC classification number: H04N19/91 ,  H04N19/119 ,  H04N19/167 ,  H04N19/172

Abstract: A method of dynamic point cloud partition packing is by at least one processor and includes obtaining one or more region of interest (ROI) patches from an ROI of a point cloud, and attempting to pack, into one among tiles of a tile map, one among the obtained one or more ROI patches, in a tile scan order. The method further includes identifying whether the one among the one or more ROI patches is packed successfully into the one among the tiles, and based on the one among the one or more ROI patches being determined to be not packed successfully into the one among the tiles, chunking the one among the one or more ROI patches into multiple ROI patches.

公开(公告)号：US11800184B2

公开(公告)日：2023-10-24

申请号：US17489103

申请日：2021-09-29

Applicant: TENCENT AMERICA LLC

Inventor： Shuai Zhao ,  Stephan Wenger ,  Iraj Sodagar ,  Shan Liu

IPC: G06T15/20 ,  H04N21/44 ,  H04N21/218 ,  H04N21/81

CPC classification number: H04N21/44004 ,  G06T15/20 ,  H04N21/21805 ,  H04N21/816

Abstract: Systems, methods, and devices for managing media storage and delivery, including obtaining information about a three-dimensional (3D) scene; obtaining, from the information, a parameter indicating that viewport adaptation is enabled; rendering the 3D scene, wherein the 3D scene includes at least one two-dimensional (2D) video to be reproduced within the 3D scene; obtaining a current viewport of a user; determining whether the at least one 2D video is inside of a range of the current viewport; and adjusting a bitrate of the at least one 2D video based on a result of the determining.

公开(公告)号：US11800149B2

公开(公告)日：2023-10-24

申请号：US17856219

申请日：2022-07-01

Applicant: Tencent America LLC

Inventor： Ling Li ,  Byeongdoo Choi ,  Xiang Li ,  Stephan Wenger ,  Shan Liu

IPC: H04N19/593 ,  H04N19/174 ,  H04N19/70 ,  H04N19/46 ,  H04N19/159

CPC classification number: H04N19/593 ,  H04N19/159 ,  H04N19/174 ,  H04N19/46 ,  H04N19/70

Abstract: A method of video encoding includes determining that a coded video bitstream conforms to one of a Main 10 still picture profile or a Main 4:4:4 10 still picture profile and generating profile information that indicates that each of the image slices is to be intra coded and indicates the one of the Main 10 still picture profile or the Main 4:4:4 10 still picture profile. The method further includes constraining only one picture to be included in the coded video bitstream according to the one of the Main 10 still picture profile or the Main 4:4:4 10 still picture profile. The method also includes performing intra prediction on each of the image slices, and encoding the picture based on the intra prediction and according to the one of the Main 10 still picture profile or the Main 4:4:4 10 still picture profile to form the coded video bitstream.