公开(公告)号：WO2023080926A1

公开(公告)日：2023-05-11

申请号：PCT/US2022/028690

申请日：2022-05-11

Applicant: TENCENT AMERICA LLC

Inventor： SODAGAR, Iraj

IPC: G08C17/02 ,  H04L65/1063

Abstract: A method is provided. The method includes selecting media content including a scene, creating, in an outer session loop, an augmented reality (AR)/mixed reality (MR) session for streaming the media content, rendering, in an inner session loop within the outer session loop, the media content, and updating, in the outer session loop, the scene with a new scene by providing the new scene to the inner session loop while the inner session loop is rendering the media content.

公开(公告)号：WO2023080919A1

公开(公告)日：2023-05-11

申请号：PCT/US2022/021965

申请日：2022-03-25

Applicant: TENCENT AMERICA LLC

Inventor： ABHISHEK, Rohit ,  SODAGAR, Iraj

IPC: H04L29/06 ,  H04N7/15 ,  H04N7/00 ,  H04L29/00 ,  H04N13/00

Abstract: A method and device for signaling multiple audio mixing gains in a teleconference using Real-time Transport Control Protocol (RTCP) feedback. The method includes receiving an input audio stream from a 360-degree stream, the input audio stream including mixing gains, declaring an RTCP feedback rate for receiving the mixing gains, based on an allocated bandwidth, and signaling the mixing gains using the declared RTCP feedback rate. The mixing gains may include audio gains from the input audio stream and audio gains from overlay audio streams. The RTCP feedback rate used for signaling the mixing gains may be constant or event-based feedback rate.

公开(公告)号：WO2023076049A1

公开(公告)日：2023-05-04

申请号：PCT/US2022/046784

申请日：2022-10-14

Applicant: TENCENT AMERICA LLC

Inventor： ABHISHEK, Rohit ,  HINDS, Arianne ,  DAWKINS, Paul Spencer

IPC: G02B27/01 ,  H04N19/70

Abstract: A system and method of split rendering for lightfield or immersive media by using an edge-cloud and peer-to-peer based architecture. The system and method include the use of a combination of cloud-based devices and edge-devices to provide distributed processing in connection with the streaming of media, and in particular lightfield or immersive media, to an end user device. The system and method further include the use of multiple cloud and edge devices to provide parallel streaming of a given media package to an end user device.

公开(公告)号：WO2023069235A1

公开(公告)日：2023-04-27

申请号：PCT/US2022/045002

申请日：2022-09-28

Applicant: TENCENT AMERICA LLC

Inventor： JIANG, Wei ,  WANG, Wei ,  LIU, Shan

IPC: G06N3/02 ,  G06N3/0464 ,  H04N19/10 ,  H04N19/136 ,  H04N19/70

Abstract: Neural image compression using substitutional quality factor learning in a latent space, including receiving a compressed bitstream and a target quality factor indicating a target compression quality, calculating a decoded latent representation of the compressed bitstream, and calculating a reconstructed image based on the decoded latent representation of the compressed bitstream and the target quality factor, computing a shared feature based on a network forward computation using shared decoding parameters (SDP) of one or more layers of a convolutional neural network, computing estimated adaptive decoding parameters (ADP) for the one or more layers of the convolutional neural network based on the shared feature, the adaptive decoding parameters, and the target quality factor, and computing an output tensor based on the estimated ADP in the one or more layers of the convolutional neural network and the shared feature.

公开(公告)号：WO2023018594A1

公开(公告)日：2023-02-16

申请号：PCT/US2022/039387

申请日：2022-08-04

Applicant: TENCENT AMERICA LLC

Inventor： YU, Dian ,  YU, Dong

IPC: G01L17/00

Abstract: A method, computer program, and computer system is provided for identifying a speaker in at text based work. Labeled and unlabeled instances corresponding to one or more speakers are extracted. Pseudo-labels are inferred for the extracted unlabeled instances based on the labeled instances. One or more of the unlabeled instances are labeled based on the inferred pseudo-labels.

公开(公告)号：WO2023004007A1

公开(公告)日：2023-01-26

申请号：PCT/US2022/037820

申请日：2022-07-21

Applicant: HOWARD UNIVERSITY ,  WADE, Mamadou Ibra

Inventor： WADE, Mamadou Ibra

IPC: H04L9/14 ,  H04L9/30 ,  H04L9/40

Abstract: Systems, methods and apparatus for secure encryption and decryption of a file may be provided which may include generating, by a first processor, a plurality of encryption isokeys, wherein the plurality of encryption isokeys include a first public isokey, a second public isokey, and a private isounit; and encrypting, by the first processor, ciphertext associated with a message based on the plurality of encryption isokeys. The approach may also include receiving, by a second processor, the ciphertext associated with the message; generating, by the second processor, a plurality of decryption isokeys, wherein the plurality of decryption isokeys include the private isounit, a private decryption isokey, and the first public isokey; and decrypting, by the second processor, the message associated with the ciphertext based on the plurality of decryption isokeys.

公开(公告)号：WO2023283286A1

公开(公告)日：2023-01-12

申请号：PCT/US2022/036285

申请日：2022-07-07

Applicant: TENCENT AMERICA LLC

Inventor： ZHAO, Shuai ,  WENGER, Stephan ,  LIU, Shan

IPC: H04L41/042

Abstract: A method, computer program, and computer system for enabling peer-to-peer media streaming using service enabler architecture layer (SEAL). The method may be executed by one or more processors, and the method may include receiving, by a vertical application layer (VAL) server, a request for a media session negotiation between one or more client devices, and retrieving, by the vertical application layer (VAL) server, transport layer information associated with each of the one or more client devices using network address translation traversal. The method may further include transmitting, by the vertical application layer (VAL) server, agreed session description protocol (SDP) parameters based on the transport layer information, wherein the agreed session description protocol (SDP) parameters are used to establish a peer-to-peer media streaming session.

公开(公告)号：WO2023282946A1

公开(公告)日：2023-01-12

申请号：PCT/US2022/023841

申请日：2022-04-07

Applicant: TENCENT AMERICA LLC

Inventor： SODAGAR, Iraj

IPC: G06F9/50 ,  G06F9/48 ,  G06F9/54 ,  H04L65/00

Abstract: Systems and methods for monitoring, reporting, and notification of media processing entities using system variables and events are provided. According to embodiments, schemes for the monitoring, reporting, and notification may be created, updated, and deleted using a media processing entity (MPE) application programming interface (API). According to embodiments, based on the scheme being implemented by an MPE, a value of a variable of the MPE or a status of an event of the MPE, during the monitoring, or as a part of the reporting, or as a part of the notification may be sent by the MPE and received.

公开(公告)号：WO2022256031A1

公开(公告)日：2022-12-08

申请号：PCT/US2021/054555

申请日：2021-10-12

Applicant: TENCENT AMERICA LLC

Inventor： ZHANG, Xiang ,  FENG, Weiwei ,  GAO, Wen ,  LIU, Shan ,  JIAN, Bing

IPC: H04N19/00

Abstract: Methods and apparatuses of encoding a video stream encoded using video point cloud coding include obtaining a source point cloud; generating an occupancy map including one or more pixels based on the source point cloud, an occupancy value associated with each pixel being a non-binary value; encoding the occupancy map to generate an encoded occupancy map, wherein a block of the encoded occupancy map corresponds to the one or more pixels of the occupancy map; selecting an occupancy value of the block based on the one or more pixels; and generating an encoded video stream based on the selected occupancy value.

公开(公告)号：WO2022225642A1

公开(公告)日：2022-10-27

申请号：PCT/US2022/021869

申请日：2022-03-25

Applicant: TENCENT AMERICA LLC

Inventor： SODAGAR, Iraj

IPC: H04L65/60 ,  H04N19/136 ,  H04N19/20

Abstract: A method and apparatus for processing events in a media stream may be provided. The method may include obtaining media data; generating, from the media data, one or more event segments and one or more media segments; parsing a respective event from the one or more event segments to determine an event start time, event end time, and dispatch mode; appending the respective event from the one or more event segments to an event dispatch buffer based on a comparison of the event start time and a current playback position, and a determination that the respective event is not present in an already dispatched buffer; and dispatching the respective event based on the position associated with the respective event in the event dispatch buffer, the event start time, the event end time, and the current playback position.