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公开(公告)号：US20210027500A1
公开(公告)日：2021-01-28
申请号：US16520997
申请日：2019-07-24
Applicant: AT&T Intellectual Property I, L.P.
Inventor： Bo Han , Cheuk Yiu Ip , Jackson Jarrell Pair
IPC: G06T9/40 , H04L12/26 , H04L29/08 , G06T17/00 , H04N13/161
Abstract: Aspects of the subject disclosure may include, for example, a machine-readable medium, comprising executable instructions that, when executed by a processing system including a processor, facilitate performance of operations including receiving a base layer of a first frame of a point cloud of a volumetric video encoded in an octree format over a communication network; receiving a first enhancement layer of the first frame of the point cloud of the volumetric video encoded in the octree format responsive to available sufficient bandwidth in the communication network for delivery of the first enhancement layer; receiving a second enhancement layer of the first frame of the point cloud of the volumetric video encoded in the octree format responsive to available sufficient bandwidth in the communication network for delivery of the second enhancement layer; and rendering the first frame on a display device. Other embodiments are disclosed.
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公开(公告)号：US20200279127A1
公开(公告)日：2020-09-03
申请号：US16877696
申请日：2020-05-19
Applicant: AT&T Intellectual Property I, L.P.
Inventor： Bo Han , Tan Xu , Cheuk Yiu Ip
IPC: G06K9/46 , G06K9/32 , G06F3/01 , H04N13/117 , H04N5/232
Abstract: Aspects of the subject disclosure may include, for example, a method performed by a processing system of determining a present orientation of a display region presented at a first time on a display of a video viewer, predicting a future orientation of the display region occurring at a second time based on data collected, to obtain a predicted orientation of the display region to be presented at the second time on the display of the video viewer, identifying, based on the predicted orientation of the display region, a first group of tiles from a video frame of a panoramic video being displayed by the video viewer, wherein the first group of tiles covers the display region in the video frame at the predicted orientation, and a plurality of objects moving in the video frame from the first time to the second time, wherein each object of the plurality of objects is located in a separate spatial region of the video frame at the second time, wherein a second group of tiles collectively covers the separate spatial regions, wherein tiles in the first group of tiles and tiles in the second group of tiles are different, and facilitating wireless transmission of the first group of tiles and a second tile from the second group of tiles, for presentation at the video viewer at the second time. Other embodiments are disclosed.
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公开(公告)号：US11689600B1
公开(公告)日：2023-06-27
申请号：US17733313
申请日：2022-04-29
Applicant: AT&T Intellectual Property I, L.P.
Inventor： Emir Halepovic , Cheuk Yiu Ip , Vijay Gopalakrishnan , Edward Allen Lambert , Jennifer Yates
IPC: G06F13/00 , H04L65/80 , H04L43/091
CPC classification number: H04L65/80 , H04L43/091
Abstract: Network capacity planning based on application performance can include detecting a data session occurring on a network, identifying an application being used for the data session, where the application can include a video application, determining if a performance model for the video application exists, the performance model describing performance metrics and quality of service events associated with the video application, determining, based on the performance model, a capacity planning trigger for the video application, where the capacity planning trigger can include increasing network capacity based on the needs and a quality of service associated with the video application during the data session, and generating a command that, when executed by a network entity, causes the network entity to implement the capacity planning trigger on the network.
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公开(公告)号：US11457200B2
公开(公告)日：2022-09-27
申请号：US16825645
申请日：2020-03-20
Applicant: AT&T Intellectual Property I, L.P.
Inventor： Bo Han , Cheuk Yiu Ip , Jackson Jarrell Pair
IPC: H04N13/194 , H04N13/111 , H04N13/178 , G06T7/33 , G06V10/40
Abstract: Aspects of the subject disclosure may include, for example, a device, that includes a processing system including a processor and a memory that stores executable instructions that, when executed by the processing system, facilitate performance of operations including receiving a manifest for a point cloud, wherein the point cloud is partitioned into a plurality of cells; determining an occlusion level for a cell of the plurality of cells with respect to a predicted viewport; reducing a point density for the cell provided in the manifest based on the occlusion level, thereby determining a reduced point density; and requesting delivery of points in the cell, based on the reduced point density. Other embodiments are disclosed.
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公开(公告)号：US11445161B2
公开(公告)日：2022-09-13
申请号：US17197276
申请日：2021-03-10
Applicant: AT&T Intellectual Property I, L.P.
Inventor： Bo Han , Jackson Jarrell Pair , Cheuk Yiu Ip
IPC: H04N13/117 , H04N13/194 , G06N20/00 , G06N3/08 , G06T7/174
Abstract: Aspects of the subject disclosure may include, for example, a device having a processing system including a processor; and a memory that stores executable instructions that, when executed by the processing system, facilitate performance of operations, the operations comprising predicting a viewpoint within a volumetric video based on a movement input provided by a viewer, resulting in a predicted viewpoint at a future time, retrieving a cell occupancy bitmap for a point cloud of the volumetric video for the future time, determining visible cells based on the cell occupancy bitmap and the predicted viewpoint, where the visible cells are not obscured by points in other cells, and retrieving points of the point cloud that are within the visible cells prior to the future time.
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Patent Agency Ranking
16.发明申请公开(公告)号：US20210235140A1
公开(公告)日：2021-07-29
申请号：US16875548
申请日：2020-05-15
Inventor： Bo Han , Cheuk Yiu Ip , Jackson Jarrell Pair , Feng Qian
IPC: H04N21/24 , H04N21/2343 , H04N21/239 , H04N21/472 , H04N21/2187 , H04N21/81 , H04N21/2385 , H04N21/478
Abstract: Aspects of the subject disclosure may include, for example, embodiments for obtaining video content from a video content server, determining a quality parameter for each of the plurality of adjusted video content, and adjusting the video content to generate the plurality of adjusted video content. Each of the plurality of adjusted video content comprises a different point cloud density according to the quality parameter. Further embodiments can include receiving a request for the video content from a video content application on a communication device, and determining a distance from a viewpoint to a point-cloud object on the video content application of the communication device. Additional embodiments can include selecting an adjusted video content based on the distance from the viewpoint to the point-cloud object and the quality parameter of the adjusted video content, and providing the adjusted video content to the communication device for presentation. Other embodiments are disclosed.
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公开(公告)号：US20210051306A1
公开(公告)日：2021-02-18
申请号：US16713172
申请日：2019-12-13
Inventor： Bo Han , Wenxiao Zhang , Pan Hui , Tan Xu , Cheuk Yiu Ip
IPC: H04N13/117 , H04N13/194 , H04N13/282 , H04N13/161
Abstract: Aspects of the subject disclosure may include, for example, a device in which a processing system receives from a multimedia content server a plurality of content streams; each of the content streams includes a portion of an original content stream. The processing system transcodes the plurality of content streams based on a viewport prediction to produce a plurality of viewport streams; the viewport prediction is based at least in part on a visibility map associated with a viewer of the content. The processing system delivers each of the viewport streams to a client device associated with the viewer; each of the viewport streams is buffered at the client device in a separate buffer. Other embodiments are disclosed.
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公开(公告)号：US10699154B2
公开(公告)日：2020-06-30
申请号：US16058534
申请日：2018-08-08
Applicant: AT&T Intellectual Property I, L.P.
Inventor： Bo Han , Tan Xu , Cheuk Yiu Ip
IPC: G06K9/46 , G06K9/32 , G06F3/01 , H04N13/117 , H04N5/232
Abstract: Aspects of the subject disclosure may include, for example, a method performed by a processing system of determining a present orientation of a display region presented at a first time on a display of a video viewer, predicting a future orientation of the display region occurring at a second time based on data collected, to obtain a predicted orientation of the display region to be presented at the second time on the display of the video viewer, identifying, based on the predicted orientation of the display region, a first group of tiles from a video frame of a panoramic video being displayed by the video viewer, wherein the first group of tiles covers the display region in the video frame at the predicted orientation, and a plurality of objects moving in the video frame from the first time to the second time, wherein each object of the plurality of objects is located in a separate spatial region of the video frame at the second time, wherein a second group of tiles collectively covers the separate spatial regions, wherein tiles in the first group of tiles and tiles in the second group of tiles are different, and facilitating wireless transmission of the first group of tiles and a second tile from the second group of tiles, for presentation at the video viewer at the second time. Other embodiments are disclosed.
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公开(公告)号：US20200050884A1
公开(公告)日：2020-02-13
申请号：US16058534
申请日：2018-08-08
Applicant: AT&T Intellectual Property I, L.P.
Inventor： Bo Han , Tan Xu , Cheuk Yiu Ip
IPC: G06K9/46 , G06K9/32 , H04N5/232 , H04N13/117 , G06F3/01
Abstract: Aspects of the subject disclosure may include, for example, a method performed by a processing system of determining a present orientation of a display region presented at a first time on a display of a video viewer, predicting a future orientation of the display region occurring at a second time based on data collected, to obtain a predicted orientation of the display region to be presented at the second time on the display of the video viewer, identifying, based on the predicted orientation of the display region, a first group of tiles from a video frame of a panoramic video being displayed by the video viewer, wherein the first group of tiles covers the display region in the video frame at the predicted orientation, and a plurality of objects moving in the video frame from the first time to the second time, wherein each object of the plurality of objects is located in a separate spatial region of the video frame at the second time, wherein a second group of tiles collectively covers the separate spatial regions, wherein tiles in the first group of tiles and tiles in the second group of tiles are different, and facilitating wireless transmission of the first group of tiles and a second tile from the second group of tiles, for presentation at the video viewer at the second time. Other embodiments are disclosed.
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20.发明申请公开(公告)号：US20220245825A1
公开(公告)日：2022-08-04
申请号：US17725582
申请日：2022-04-21
Applicant: AT&T Intellectual Property I, L.P.
Inventor： Bo Han , Cheuk Yiu Ip , Eric Zavesky , Huanle Zhang
Abstract: Aspects of the subject disclosure may include, for example, a device that has a processing system including a processor; and a memory that stores executable instructions that, when executed by the processing system, facilitate performance of operations, including downsampling a full point cloud to obtain a downsampled point cloud, wherein the downsampling reduces a data size of the full point cloud; and using a machine-learning model to assign labels for segmentation and object identification to points in the downsampled point cloud, wherein the machine-learning model is trained on the full point cloud. Other embodiments are disclosed.
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