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：US20200349775A1

公开(公告)日：2020-11-05

申请号：US16933494

申请日：2020-07-20

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

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

IPC: G06T19/00 ,  H04L29/06 ,  G06F3/01 ,  H04N21/2343 ,  H04N19/597 ,  G06F3/0481 ,  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：US10812828B2

公开(公告)日：2020-10-20

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: H04N19/00 ,  H04N19/597 ,  H04N13/161 ,  H04N5/232 ,  H04N19/174

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：US10659815B2

公开(公告)日：2020-05-19

申请号：US15915513

申请日：2018-03-08

Applicant: AT&T Intellectual Property I, L.P. ,  Indiana University Research and Technology Corporation

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

IPC: H04N19/597 ,  H04N19/174 ,  H04N13/366 ,  H04N13/332 ,  H04N19/147 ,  H04N13/344

Abstract: Disclosed aspects may include, for example, maximizing a quality of experience when selecting encoding bitrates for downloading dynamically adaptive 360-degree panoramic video. Some embodiments include predicting a future orientation of a display region based on a first display region of the video, identifying predicted list of tiles for rendering the second display region, calculating a quality of experience from a plurality of encoding bitrates for the tiles in the second display region and one or more tiles in a margin area so that downloading the plurality of tiles at one or more bitrates is within estimated available embodiments, and downloading tiles for display.

公开(公告)号：US20190102944A1

公开(公告)日：2019-04-04

申请号：US15901609

申请日：2018-02-21

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

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

IPC: G06T19/00 ,  G06F3/01 ,  H04L29/06

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.