公开(公告)号：US20220172443A1

公开(公告)日：2022-06-02

申请号：US17674104

申请日：2022-02-17

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

Inventor： Bo Han ,  Vijay Gopalakrishnan ,  Jackson Jarrell Pair ,  Vikash Sharma

IPC: G06T19/00 ,  H04L67/131 ,  G06F3/01 ,  H04N21/2343 ,  H04N19/597 ,  G06F3/04815 ,  G06T15/20 ,  H04N21/218 ,  H04N21/234 ,  H04N21/81

Abstract: Aspects of the subject disclosure may include, for example, a process that analyzes image content of an immersive video frame and identifies a first group of segments of the immersive video frame based on the analysis. The segments collectively span an entire space portrayed by the immersive video frame and the first group of segments spans less than the entire space. A size of a display region of an immersive video viewer is determined that spans less than the entire space and a second group of segments is determined based on the first group of segments and the size of the display region. Transport of the second group of segments, spanning less than the entire space, is facilitated via a communication network to the immersive video viewer for presentation, without requiring transmission of all of the segments. Other embodiments are disclosed.

公开(公告)号：US11190771B2

公开(公告)日：2021-11-30

申请号：US16820080

申请日：2020-03-16

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

Inventor： Bo Han ,  Cheuk Yiu Ip ,  Jackson Jarrell Pair

IPC: H04N19/132 ,  H04N19/184 ,  H04N19/30 ,  H04N19/146

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 selecting a downsampling technique for removing points from a point cloud in a volumetric video; selecting a data reduction percentage for a target bitrate for streaming the volumetric video; downsampling the point cloud in each frame of the volumetric video for the target bitrate using the downsampling technique and data reduction percentage selected, thereby creating a downsampled volumetric video; and compressing and encoding the downsampled volumetric video, thereby creating an encoded volumetric video. Other embodiments are disclosed.

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.

公开(公告)号：US20190379875A1

公开(公告)日：2019-12-12

申请号：US16001418

申请日：2018-06-06

Applicant: AT&T Intellectual Property I, L.P. ,  THE TRUSTEES OF INDIANA UNIVERSITY

Inventor： Vijay Gopalakrishnan ,  Bo Han ,  Jackson Jarrell Pair ,  Vikash Sharma ,  Feng Qian

IPC: H04N13/161 ,  H04N19/30 ,  H04N13/366

Abstract: Aspects of the subject disclosure may include, for example, identifying FOV and OOS tiles of the video content. The FOV and OOS tiles are received from a video server. The FOV and OOS tiles are encoded using AVC and a first layer of SVC, respectively. Further embodiments include providing the FOV and OOS tiles for presentation on a display, detecting a change in a field of vision, and identifying other FOV tiles of the video content, which comprise a portion of the OOS tiles. Also, embodiments include requesting the portion of the OOS tiles and receiving the portion of the OOS tiles from the video server over the communication network, which are encoded using an enhancement layer of SVC and then provided, to the display, according the enhancement layer in conjunction with the providing of the OOS tiles according to the first layer. Other embodiments are disclosed.

公开(公告)号：US20190313119A1

公开(公告)日：2019-10-10

申请号：US15949797

申请日：2018-04-10

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

Inventor： Bo Han ,  Vijay Gopalakrishnan ,  Jackson Jarrell Pair ,  Vikash Sharma

IPC: H04N19/597 ,  H04N19/174 ,  H04N5/232 ,  H04N13/161

Abstract: Aspects of the subject disclosure may include, for example, identifying a field of view (FoV) within a first frame of a video that occupies a sub-portion of the frame. A size is determined by subdividing a portion of the video according to a tiling scenario. Tiles overlapping the FoV are detected, and an updated size is determined based on an encoded version of the tiles and compared to a reference size. Responsive to the updated size being less than the reference size, the reference size is adjusted to the updated size, the tiling scenario is adjusted according to an adjusted tiling scenario, and the determining of the size is repeated based on the adjusted tiling scenario. Responsive to the updated size not being less than the reference size, a preferred tiling scenario is identified based on the adjusted tiling scenario for tiling the video. Other embodiments are disclosed.

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.

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.

公开(公告)号：US20220277747A1

公开(公告)日：2022-09-01

申请号：US17748515

申请日：2022-05-19

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

Inventor： Jackson Jarrell Pair

IPC: G10L15/22 ,  G10L15/30 ,  G10L15/18

Abstract: Aspects of the subject disclosure may include, for example, obtaining a natural language instruction, interpreting the instruction to obtain a machine interpretation, and analyzing the machine interpretation to obtain an intent of the natural language instruction. An actionable command adapted to cause a digital manipulation tool to digitally manipulate a content item is determined according to the intent of the natural language instruction. The actionable command is provided to the digital manipulation tool to obtain the manipulated content item. Other embodiments are disclosed.

公开(公告)号：US20210360046A1

公开(公告)日：2021-11-18

申请号：US17387672

申请日：2021-07-28

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

Inventor： Bo Han ,  Vijay Gopalakrishnan ,  Jackson Jarrell Pair ,  Vikash Sharma

IPC: H04L29/06 ,  H04N5/232

Abstract: Aspects of the subject disclosure may include, for example, obtaining data indicative, for a frame of a video, of a field of view of a user; determining from a set of homogeneous tiles of the frame a subset of the homogeneous tiles that covers the field of view, wherein the set of homogeneous tiles has been constructed prior to the obtaining of the data; and merging at least a first tile of the set of homogeneous tiles and a second tile of the set of homogenous tiles into a larger tile, wherein the merging is based upon at least one parameter. Other embodiments are disclosed.

公开(公告)号：US20210235140A1

公开(公告)日：2021-07-29

申请号：US16875548

申请日：2020-05-15

Applicant: AT&T Intellectual Property I, L.P. ,  Regents of the University of Minnesota

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.