Tencent America LLC

Vidyo, Inc.

Stephan Wenger

Shan Liu

Byeongdoo Choi

Shuai Zhao

Arianne Hinds

Sehoon Yea

Xiang Yang Li

Rohit Abhishek

Xiaozhong Xu

Jill MacDonald Boyce

Arash Vosoughi

Paul Spencer Dawkins

Xin Zhao

Xiang Li

Danny Hong

Iraj Sodagar

Wei Jiang

Jing Ye

Yixin Du

Ling Li

Wei W Wang

Meng Xu

Liang Zhao

Wen Gao

Jonathan Michael Lennox

Zeqiang Li

Stephen Cipolli

Xiang Zhang

Wei Wang

Tal Shalom

Wonkap Jang

Isaac Levy

Won Kap Jang

Meir Sela

Jonathan Lennox

Jang Wonkap

Aspects of the disclosure provide methods and apparatuses (electronic devices) for media processing. In some examples, an electronic device includes processing circuitry to perform a process of a smart client that is a client interface of the electronic device to an immersive media streaming network. A method for media processing includes transmitting, by the client interface of the electronic device and to a server device in the immersive media streaming network, capability and availability information of the electronic device for playing back a scene-based immersive media. Further, the method includes receiving, by the client interface, a media stream carrying adapted media content for the scene-based immersive media. The adapted media content is generated from the scene-based immersive media by the server device based on the capability and availability information. The method then includes playing back the scene-based immersive media according to the adapted media content.

Smart client for streaming of scene-based immersive media to game engine

A method, computer program, and computer system are provided for video coding. The video coding includes decoding one or more previously encoded frames of a video source that are designated as reference frames for the video source, searching the reference frames for one or more candidate pixel blocks for an input frame of the video source, and encoding the input frame based on the one or more candidate pixel blocks.

Techniques for bitstream extraction for subpicture in coded video stream

Aspects of the disclosure provide a method, an apparatus, and non-transitory computer-readable storage medium for video decoding. The apparatus includes processing circuitry that is configured to decode a current picture based on a bitstream. The processing circuitry can determine, from a supplemental enhancement information (SEI) message, a first flag indicating whether a warping process is applied to the current decoded picture. Based on the first flag indicating that the warping process is applied to the current decoded picture, the processing circuitry can determine warping information of the warping process based on the SEI message. The processing circuitry can determine a warped picture from the current decoded picture based on the warping information.

Warping parameter signaling for image stabilization

In a method of decoding, a first flag of a sequence parameter set (SPS) that is referred to by a current picture is obtained. The current picture is decoded based on whether the first flag indicates the reference picture resampling is enabled. The first flag equal to a first value indicates that the reference picture resampling is enabled and the current picture is allowed to include slices that refer to a reference picture with at least one of a different spatial resolution or a different scaling window in an active entry of a reference pictures list. The first flag equal to a second value indicates that the reference picture resampling is disabled and no slice of the current picture refers to the reference picture with the at least one of the different spatial resolution or the different scaling window in the active entry of the reference picture list.

Reference picture resampling

There is included a method and apparatus including computer code configured to cause a processor or processors to parse a scene file to extract scene file data, send the scene file data to a converter, and translate, by the converter and based on a metadata framework, the scene file data from a first scene graph format to a second scene graph format compatible with a renderer interface, and the metadata framework comprises an organization of metadata into at least one of systems and subsystems of the systems comprising collections of information common across a plurality of scene graph formats, and the metadata is specified in an Immersive Technologies Media Format.

Independent mapping space for asset interchange using ITMF

In the method, an unmanned aerial system application enabler (UAE) server can determine that a first UAV (UAV-1) is to be replaced with a second UAV (UAV-2) based on a received request. The UAV-2 is recognized by the UAE server based on a Civil Aviation Authority (CAA) level identity (ID) of the UAV-2. A request to perform a group membership update is sent by the UAE server to a SEAL group management (GM) server. The group membership update replaces the UAV-1 with the UAV-2. A response message is received by the UAE server from the SEAL GM server. The request to perform the group membership update includes (i) an ID of an UAE client that corresponds to the group of the UAV-1 and the UAV-C, (ii) a user equipment (UE) ID of the UAV-1, (iii) a UE ID of the UAV-2, and (iv) the CAA-level ID of the UAV-2.

Method and apparatus for UAV and UAV controller group membership update

Aspects of the disclosure provide methods and apparatuses for video encoding/decoding. In some examples, an apparatus for video decoding includes processing circuitry. The processing circuitry decodes pictures associated with views in a bitstream and determines, from a supplemental enhancement information (SEI) message, positions of multidimensional coordinates in a multidimensional space respectively for the views. In an example, a position of a view is defined in the SEI message by at least a vertical view position and a horizontal view position in the multidimensional space. Further, the processing circuitry determines a rendering picture from the pictures based on a rendering view that is defined by at least the vertical view position and the horizontal view position in the multidimensional space.

Techniques for signaling multiview view positions in SEI message

A method of decoding a coded picture of a coded video sequence, the method being performed by at least one processor and the method includes decoding, from a first high level syntax structure for a plurality of pictures, a syntax element related to a reference segment resolution, decoding, from a second high level syntax structure that changes from a first coded picture to a second coded picture, a syntax element related to a decoded segment resolution, resampling a sample from a reference picture buffer for use for prediction by a decoder, the decoder decoding a segment at decoding resolution, and the sample from the reference picture buffer is in the reference segment resolution, decoding the segment in the decoded segment resolution into a decoded segment in the decoded segment resolution, and storing the decoded segment into the reference picture buffer.

Adaptive picture resolution rescaling for inter-prediction and display

A method, computer program, and computer system is provided for coding video data. Video data including one or more subpictures is received. A network abstraction layer (NAL) unit type associated with each of the one or more subpictures is identified based on checking a flag corresponding to mixed NAL units in the one or more subpictures. The video data is decoded based on the identified NAL unit types.

Method for signaling of mixed NAL unit type in coded video stream

Aspects of the disclosure provide a method and a vertical application layer (VAL) server for a media session management in wireless communication. The method includes obtaining session description protocol (SDP) information within a session initiation protocol (SIP) payload associated with a media session and sending a network resource request comprising the SDP information, by a processing circuitry of a media session management module of the VAL server, to a network resource management (NRM) server. The NRM server can be a service enabler architecture layer (SEAL) server. The network resource request can request a network resource. The method further includes receiving, by the VAL server, an evaluation for the network resource request from the NRM server. The media session can be established or terminated based on the received evaluation in the media session management module of the VAL server.

Method and apparatus for media session management for service enabler architecture layer (SEAL) architecture

A method, device, and computer-readable medium for decoding an encoded video bitstream using at least one processor, including obtaining a flag indicating that a conformance window is not used for reference picture resampling; based on the flag indicating that the conformance window is not used for the reference picture resampling, determining whether a resampling picture size is signaled; based on determining that the resampling picture size is signaled, determining a resampling ratio based on the resampling picture size; based on determining that the resampling picture size is not signaled, determining the resampling ratio based on an output picture size; and performing the reference picture resampling on a current picture using the resampling ratio.

Method for signaling of reference picture resampling with resampling picture size indication in video bitstream

An approach for reconstructing a current Network Abstraction Layer (NAL) unit for video decoding using at least one processor includes determining the current NAL unit to be an Intra Random Access Picture (IRAP) NAL unit; determining whether a previous NAL unit decoded immediately before the current NAL unit indicates an end of a coded video sequence (CVS); based on determining that the previous NAL unit indicates the end of the CVS, decoding the current NAL unit as one from among an Instantaneous Decoder Refresh (IDR) NAL unit or a Broken Link Access (BLA) NAL unit; and based on determining that the previous NAL unit does not indicate the end of the CVS, decoding the current NAL unit as a Clean Random Access (CRA) NAL unit, and reconstructing the decoded current NAL unit.

Identification of random access point and picture types

A method, computer program, and computer system is provided for aligning across layers in a coded video stream. A video bitstream having multiple layers is decoded. One or more subpicture regions are identified from among the multiple layers of the decoded video bitstream, the subpicture regions including a background region and one or more foreground subpicture regions. An enhanced subpicture is decoded and displayed based on a determination that a foreground subpicture region is selected. The background region is decoded and displayed based on a determination that a foreground subpicture region was not selected.

Method for alignment across layers in coded video stream

A method, computer program, and computer system is provided for video coding. The method may include decoding coded syntax elements corresponding to a wrap-around padding process based on shifting a reference block by a width value that is determined based on luma samples in the reference block; and reconstructing at least one coded current picture using the wrap-around padding process, wherein the wrap-around padding process is applied at boundaries of subpictures.

Method for padding processing with sub-region partitions in video stream

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.

Growing community of inventors

Hillsborough, CA, United States of America

Stephan Wenger