公开(公告)号：US20240291902A1

公开(公告)日：2024-08-29

申请号：US18654701

申请日：2024-05-03

申请人： TENCENT AMERICA LLC

发明人： Paul Spencer DAWKINS ,  Rohit Abhishek ,  Arianne Hinds

IPC分类号： H04L67/56 ,  H04L65/75

CPC分类号： H04L67/56 ,  H04L65/75

摘要： A system and method for split rendering immersive media using proxy edge cloud computing architecture. The system and method may include dynamically determining a task-split or splitting a task for rendering a scene in an immersive media stream into two or more computational tasks based on one or more processing delays, wherein the task-splitting splits the scene into first part including one or more first tasks performed by an edge computing system and second part including one or more second tasks performed by a cloud computing system. The system and method may include transmitting the first parts of the scene, and transmitting the second parts of the scene.

公开(公告)号：US20240281904A1

公开(公告)日：2024-08-22

申请号：US18651337

申请日：2024-04-30

申请人： Tencent America LLC

发明人： Liang ZHAO ,  Xin ZHAO ,  Shan LIU

IPC分类号： G06Q50/04 ,  G06Q10/0631

CPC分类号： G06Q50/04 ,  G06Q10/06313

摘要： An example method of video decoding includes receiving a video bitstream that comprises a plurality of blocks including a current chroma block. When less than a threshold number of neighboring chroma blocks of a current chroma block use a chroma-from-luma (CfL) mode, a first context is selected as an entropy decoding context for a first flag. When at least the threshold number of neighboring chroma blocks use the CfL mode, a second context is selected as the entropy decoding context for the first flag. The method also includes entropy decoding the first flag from the video bitstream using the entropy decoding context, where the first flag indicates whether the CfL mode is enabled for the current chroma block, and decoding the current chroma block according to a value of the first flag.

公开(公告)号：US12069321B2

公开(公告)日：2024-08-20

申请号：US17231513

申请日：2021-04-15

申请人： TENCENT AMERICA LLC

发明人： Arianne Therese Hinds

IPC分类号： H04N21/234 ,  G06F3/01 ,  H04L65/75 ,  H04N21/4223 ,  H04N21/442 ,  H04N21/81

CPC分类号： H04N21/23412 ,  G06F3/012 ,  G06F3/014 ,  H04L65/75 ,  H04N21/4223 ,  H04N21/44218 ,  H04N21/8146

摘要： A method, computer system, and computer readable medium are provided for displaying video content. An interface to a presentation engine to enable real-time rendering of a plurality of objects is created whereby the plurality of objects are logically organized together through a plurality of scene graphs, and whereby the plurality of scene graphs is organized a media interchange format. Geometry information of the plurality of scene graphs is updated through the interface to a representation engine. The plurality of objects is streamed based on multi-resolution or multi-tessellation of heterogenous visual geometric objects in each of the scene graphs from among the plurality of scene graphs using the media interchange format.

公开(公告)号：US20240275959A1

公开(公告)日：2024-08-15

申请号：US18384759

申请日：2023-10-27

申请人： Tencent America LLC

发明人： Xin ZHAO ,  Liang ZHAO ,  Jing YE ,  Han GAO ,  Shan LIU

IPC分类号： H04N19/117 ,  H04N19/11 ,  H04N19/136 ,  H04N19/159 ,  H04N19/176 ,  H04N19/593

CPC分类号： H04N19/117 ,  H04N19/11 ,  H04N19/136 ,  H04N19/159 ,  H04N19/176 ,  H04N19/593

摘要： The disclosure includes methods and apparatuses that includes processing circuitry that receives, from a bitstream comprising a current block in a picture, coding information of the bitstream indicating that the current block is coded in an angular intra prediction mode with an intra interpolation filter. The processing circuitry applies each of a predefined set of intra interpolation filters to neighboring reconstructed samples within N adjacent lines from a boundary of the current block. The processing circuitry selects one intra interpolation filter from the predefined set of intra interpolation filters based a prediction error associated with the each of the predefined set of intra interpolation filters and predicts a sample in the current block using the angular intra prediction mode using the selected one intra interpolation filter. The processing circuitry reconstructs the current block based on the predicted sample.

公开(公告)号：US20240275834A1

公开(公告)日：2024-08-15

申请号：US18440374

申请日：2024-02-13

申请人： TENCENT AMERICA LLC

发明人： Iraj SODAGAR

IPC分类号： H04L65/61 ,  H04L65/80

CPC分类号： H04L65/61 ,  H04L65/80

摘要： A method includes determining that a split management session is provisioned over a first split-rendering interface that is an extension of a M1 interface; receiving, over a second split-rendering interface that is an extension of a M4 interface, a request to split the one or more client media functions of the UE; and negotiating, over the second split-rendering interface between a split-rendering client of the UE and a split-rendering function of the 5GMS AS, a splitting of the one or more media functions, wherein the negotiating is based on (i) one or more client media capabilities of the UE determined using a third split-rendering interface and (ii) one or more network capabilities of the 5GMS AS determined using a fourth split-rendering interface between the split-rendering function and a function on the 5GMS AS indicating the one or more network capabilities.

公开(公告)号：US20240273803A1

公开(公告)日：2024-08-15

申请号：US18441778

申请日：2024-02-14

申请人： TENCENT AMERICA LLC

发明人： Iraj SODAGAR

IPC分类号： G06T15/00 ,  G06T19/00

CPC分类号： G06T15/005 ,  G06T19/006

摘要： A method, apparatus, and non-transitory computer readable medium are provided. The method may include determining, by an augmented reality (AR) enabled user device, an available visualization space associated with the AR user device; and signaling, by the AR user device, one or more parameters that indicate dimensions of the available visualization space. The one or more parameters may indicate a shape of the available visualization space. The method may include receiving, by the AR user device, AR media to be rendered based on the available visualization space, the AR media comprising one or more three-dimensional (3D) scene; and rendering the one or more 3D scene.

公开(公告)号：US12063355B2

公开(公告)日：2024-08-13

申请号：US17985127

申请日：2022-11-10

申请人： Tencent America LLC

发明人： Han Gao ,  Lien-Fei Chen ,  Guichun Li ,  Xin Zhao ,  Shan Liu

IPC分类号： H04N19/105 ,  H04N19/139 ,  H04N19/159 ,  H04N19/176 ,  H04N19/513 ,  H04N19/70

CPC分类号： H04N19/105 ,  H04N19/139 ,  H04N19/159 ,  H04N19/176 ,  H04N19/513 ,  H04N19/70

摘要： Aspects of the disclosure provide a method and an apparatus for video encoding/decoding. The apparatus includes processing circuitry for: receiving prediction information of a current coding block in a current picture from a coded video bitstream, the prediction information indicating that the current coding block is coded using a subblock-based temporal motion vector prediction (SbTMVP) mode; deriving multiple displacement vector (DV) candidates by applying multiple DV offset candidates to a fixed DV predictor of the current coding block; comparing a template of the current coding block with each of multiple templates, each template of the multiple templates being located at a position specified by a corresponding one of the multiple DV candidates; calculating a cost value associated with each one of the multiple DV offset candidates based on the comparing; and reordering DV offset indices of the multiple DV offset candidates based on their calculated cost values.

公开(公告)号：US12062206B2

公开(公告)日：2024-08-13

申请号：US17497025

申请日：2021-10-08

申请人： TENCENT AMERICA LLC

发明人： Xiang Zhang ,  Bing Jian ,  Lu He ,  Haichao Zhu ,  Shan Liu ,  Kelin Liu ,  Weiwei Feng

IPC分类号： G06T7/00 ,  G06T7/73

CPC分类号： G06T7/73 ,  G06T2207/30204 ,  G06T2207/30244

摘要： A method, computer program, and computer system is provided for 3D pose graph reconstruction. 3D reconstruction of indoor buildings for VR/AR applications, such as virtual touring, digital museum, and virtual home sale, may be performed based on estimating pose graph and transformation matrix between cameras by recognizing markers on the ground in panorama images. Image data corresponding to one or more views of a first camera is received. One or more markers corresponding to a second camera are identified within the received image data. A pose graph corresponding to the one or more views of the first camera is constructed based on the identified one or more markers, the pose graph comprising at least an edge.

公开(公告)号：US20240267567A1

公开(公告)日：2024-08-08

申请号：US18244827

申请日：2023-09-11

申请人： Tencent America LLC

发明人： Han Gao ,  Xin Zhao ,  Liang Zhao ,  Jing YE ,  Shan Liu

IPC分类号： H04N19/86 ,  H04N19/124 ,  H04N19/157 ,  H04N19/176

CPC分类号： H04N19/86 ,  H04N19/124 ,  H04N19/157 ,  H04N19/176

摘要： The various implementations described herein include methods and systems for encoding and decoding video. In one aspect, a method of video decoding includes receiving video data that includes a first block from a bitstream, where the first block is encoded using a first partition mode. The method further includes identifying first and second sections of the first block and identifying blending values for blending the first and second sections. The blending values are obtained from one or more lookup tables (LUTs). The LUTs include values ranging from 0 to N, a first value in the LUTs is set to 0 and corresponds to a portion that is outside of a first blending region, and a second value in the LUTs is set to N and corresponds to a portion that is outside of a second blending region. The method also includes decoding the first block using the blending values.

公开(公告)号：US20240267548A1

公开(公告)日：2024-08-08

申请号：US18641136

申请日：2024-04-19

申请人： TENCENT AMERICA LLC

发明人： Yixin Du ,  Xin Zhao ,  Shan Liu

IPC分类号： H04N19/44 ,  H04N19/117 ,  H04N19/124 ,  H04N19/132 ,  H04N19/176 ,  H04N19/186 ,  H04N19/30 ,  H04N19/70

CPC分类号： H04N19/44 ,  H04N19/117 ,  H04N19/124 ,  H04N19/132 ,  H04N19/176 ,  H04N19/186 ,  H04N19/30 ,  H04N19/70

摘要： Aspects of the disclosure include methods, apparatuses, and non-transitory computer-readable storage mediums for video encoding/decoding. An apparatus includes processing circuitry that determines reconstructed samples of a first color component in a filter support region of a current picture that is a part of a coded video sequence. The processing circuitry performs a filter process on the reconstructed samples of the first color component in the filter support region. A quantization step size of the filter process is separately set per one of a coding block, a video frame, and a video sequence. The processing circuitry reconstructs samples of a second color component in the filter support region based on an output value of the filter process. The second color component is different from the first color component.