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    Data-driven event detection for compressed video
    171.
    发明授权
    Data-driven event detection for compressed video 有权

    公开(公告)号：US10970555B2

    公开(公告)日：2021-04-06

    申请号：US16552443

    申请日：2019-08-27

    Applicant: AT&T Intellectual Property I, L.P.

    Inventor： Tarek Elgamal ,  Shu Shi ,  Varun Gupta ,  John Murray ,  Rittwik Jana

    IPC: G06K9/00 ,  G06N3/08 ,  G06K9/62 ,  H04N19/87 ,  H04N5/232 ,  H04N7/18 ,  H04N19/114

    Abstract: A system can obtain a labelled data set, including historic video data and labelled events. The system can divide the labelled data set into historic training/testing data sets. The system can determine, using the historic training data set, a plurality of different parameter configurations to be used by a video encoder to encode a video that includes a plurality of video frames. Each parameter configuration can include a group of pictures (“GOP”) size and a scenecut threshold. The system can calculate an accuracy of event detection (“ACC”) and a filtering rate (“FR”) for each parameter configuration. The system can calculate, for each parameter configuration of the plurality of different parameter configurations, a harmonic mean between the ACC and the FR. The system can then select a best parameter configuration of the plurality of different parameter configurations based upon the parameter configuration that has the highest harmonic mean.

    MULTI-USER VIEWPORT-ADAPTIVE IMMERSIVE VISUAL STREAMING
    172.
    发明申请
    MULTI-USER VIEWPORT-ADAPTIVE IMMERSIVE VISUAL STREAMING 有权

    公开(公告)号：US20210092347A1

    公开(公告)日：2021-03-25

    申请号：US16581097

    申请日：2019-09-24

    Applicant: AT&T Intellectual Property I, L.P.

    Inventor： Bo Han ,  Shu Shi ,  Rittwik Jana

    IPC: H04N13/282 ,  H04N13/194 ,  H04N13/122

    Abstract: In one example, a processing system including at least one processor may obtain predicted viewports of a plurality of mobile computing devices for an immersive visual stream, determine at least a first tile of the immersive visual stream that is within the predicted viewports of at least two mobile computing devices of the plurality of mobile computing devices, select a first mobile computing device of the at least two mobile computing devices to transmit the first tile, and transmit to the first mobile computing device, the first tile and at least one identification of at least one other mobile computing device of the at least two mobile computing devices to which the first mobile computing device is to forward the first tile.

    WIRELESS NETWORK COVERAGE BASED ON A PREDETERMINED DEVICE CLUSTER MODEL SELECTED ACCORDING TO A CURRENT KEY PERFORMANCE INDICATOR
    175.
    发明申请
    WIRELESS NETWORK COVERAGE BASED ON A PREDETERMINED DEVICE CLUSTER MODEL SELECTED ACCORDING TO A CURRENT KEY PERFORMANCE INDICATOR 审中-公开

    公开(公告)号：US20200322814A1

    公开(公告)日：2020-10-08

    申请号：US16374719

    申请日：2019-04-03

    Applicant: AT&T Intellectual Property I, L.P.

    Inventor： Mostafa Tofighbakhsh ,  Deva-Datta Sharma ,  Bogdan Ungureanu ,  Rittwik Jana ,  Shraboni Jana

    IPC: H04W24/02

    Abstract: Adapting wireless network coverage areas according to beam parameters corresponding to predetermined radio cluster models is disclosed. The disclosed subject matter can enable determining cluster models corresponding to historic use of a wireless network, e.g., based on historical KPIs, etc., from UEs, RAN devices, antennas, and other sources. The cluster models can correspond to beam parameters. The cluster model of the cluster models can be selected based on a current KPI value, e.g., a real-time or near real-time wireless network measurement, e.g., from a UE, RAN device, antenna, etc. Beam parameters corresponding to the selected cluster model can be communicated to a RAN device which can generate a corresponding radio beam. In an aspect, this can provide wireless connectivity to clusters of devices in the area of the radio beam, wherein the devices of the clusters can, in some embodiments, share same or similar wireless network demands.

    Method and apparatus for managing communication sessions
    176.
    发明授权
    Method and apparatus for managing communication sessions 有权

    公开(公告)号：US10798431B2

    公开(公告)日：2020-10-06

    申请号：US15645398

    申请日：2017-07-10

    Applicant: AT&T INTELLECTUAL PROPERTY I, L.P.

    Inventor： Rittwik Jana ,  John F. Murray ,  Christopher W. Rice

    IPC: H04N21/234 ,  H04N21/2343 ,  H04L29/06 ,  H04N21/25 ,  H04N21/239 ,  H04N21/258 ,  H04N21/2668 ,  H04N21/41 ,  H04N21/437

    Abstract: A system that incorporates teachings of the present disclosure may include, for example, a server operably coupled to an internet protocol multimedia subsystem network and an interactive television system, where the server receives a session transfer request from a first communication device, where the session transfer request includes identification information associated with a second communication device, and where the server transmits a message to the second communication device and transmits a media adjustment message to a media resource server of the internet protocol multimedia subsystem network. The media content is adjusted and transmitted to the second communication device responsive to the media adjustment message, where the adjusted media content is generated by the media resource server based on the identification information associated with the second communication device. Other embodiments are disclosed.

    METHODS, DEVICES, AND SYSTEMS FOR UPDATING STREAMING PANORAMIC VIDEO CONTENT DUE TO A CHANGE IN USER VIEWPOINT
    178.
    发明申请
    METHODS, DEVICES, AND SYSTEMS FOR UPDATING STREAMING PANORAMIC VIDEO CONTENT DUE TO A CHANGE IN USER VIEWPOINT 审中-公开

    公开(公告)号：US20200162766A1

    公开(公告)日：2020-05-21

    申请号：US16196803

    申请日：2018-11-20

    Applicant: AT&T Intellectual Property I, L.P.

    Inventor： Shu Shi ,  Varun Gupta ,  Rittwik Jana ,  John F. Murray ,  Michael Hwang

    IPC: H04N21/2343 ,  H04N21/442 ,  H04N21/433 ,  H04N5/232

    Abstract: Aspects of the subject disclosure may include, for example, embodiments comprising obtaining a plurality of original frames for video content, receiving a first viewpoint from a mobile device, and processing the plurality of original frames according to the first viewpoint generating a plurality of first viewpoint frames. Further embodiments include providing the plurality of first viewpoint frames to the mobile device, generating a group of delta frames in response to receiving a change in viewpoint from the mobile device, and providing the group of delta frames to the mobile device. The mobile device processes a portion of the plurality of first viewpoint frames according to the group of delta frames to generate a group of second viewpoint frames and the mobile device presents the group of second viewpoint frames. Other embodiments are disclosed.

    METHODS, DEVICES, AND SYSTEMS FOR PROVIDING PANORAMIC VIDEO CONTENT TO A MOBILE DEVICE FROM AN EDGE SERVER
    179.
    发明申请
    METHODS, DEVICES, AND SYSTEMS FOR PROVIDING PANORAMIC VIDEO CONTENT TO A MOBILE DEVICE FROM AN EDGE SERVER 审中-公开

    公开(公告)号：US20200077124A1

    公开(公告)日：2020-03-05

    申请号：US16119652

    申请日：2018-08-31

    Applicant: AT&T Intellectual Property I, L.P.

    Inventor： Shu Shi ,  John F. Murray ,  Michael Hwang ,  Rittwik Jana ,  Varun Gupta

    IPC: H04N21/238 ,  H04N21/414 ,  H04N21/24 ,  H04N21/222 ,  H04N21/218

    Abstract: Aspects of the subject disclosure may include, for example, embodiments for determining a first motion-to-update latency of a mobile device in relation to receiving a video content update provided by a video content server. Further embodiments include, responsive to determining that the first motion-to-update latency exceeds a threshold: determining a motion-to-update latency of the mobile device in relation to receiving video content updates from a plurality of edge servers resulting in a plurality of motion-to-update latencies, identifying a second motion-to-update latency from the plurality of motion-to-update latencies that is below the threshold, identifying an edge server associated with the second motion-to-update latency, and transmitting video content to the edge server to mitigate the first motion-to-update latency. The edge server provides a portion of the video content at different time intervals to the mobile device and the video content comprises panoramic video content. Other embodiments are disclosed.

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