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公开(公告)号：US11159779B2
公开(公告)日：2021-10-26
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 , H04N13/122 , H04N13/194 , H04N21/63 , H04N21/258 , H04N21/442 , H04N21/262 , H04N21/24 , H04N21/81 , H04N21/218
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.
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公开(公告)号：US20210256938A1
公开(公告)日：2021-08-19
申请号：US16792397
申请日：2020-02-17
Applicant: AT&T Intellectual Property I, L.P.
Inventor： Tan Xu , Bo Han , Eric Zavesky
Abstract: Aspects of the subject disclosure may include, for example, presenting a first virtual object in accordance with a first context associated with a first user engaged in a communication session via a first application, presenting a second virtual object in accordance with a second context associated with a second user engaged in the communication session via a second application, identifying a conflict between the presenting of the first virtual object and the presenting of the second virtual object, a presenting of a physical object, or a combination thereof, and responsive to the identifying of the conflict, modifying the first virtual object, the second virtual object, or a combination thereof. Other embodiments are disclosed.
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公开(公告)号：US20210250571A1
公开(公告)日：2021-08-12
申请号：US16788405
申请日：2020-02-12
Applicant: AT&T Intellectual Property I, L.P.
Inventor： Tan Xu , Bo Han , Eric Zavesky
IPC: H04N13/395 , H04N13/117 , H04N21/81 , H04N21/6587 , G06F3/0481
Abstract: Aspects of the subject disclosure may include, for example, transmitting viewpoint information associated with a first portion of a three-dimensional (3D)/volumetric video to a device, wherein the viewpoint information comprises a first coordinate in 3D space associated with a first viewing direction in a playback of the first portion and a first timestamp associated with the first portion, receiving, from the device, a multiplane image (MPI) representation of a second portion of the 3D video responsive to the transmitting of the viewpoint information, and providing an image of the MPI representation to a display device. Other embodiments are disclosed.
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公开(公告)号：US20210235057A1
公开(公告)日：2021-07-29
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 , H04N13/178 , H04N13/111
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：US20210232849A1
公开(公告)日：2021-07-29
申请号：US17232776
申请日：2021-04-16
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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Patent Agency Ranking
公开(公告)号：US11012487B2
公开(公告)日：2021-05-18
申请号：US17029993
申请日：2020-09-23
Applicant: AT&T Intellectual Property I, L.P.
Inventor： Bo Han , Sassan Pejhan , Vijay Gopalakrishnan
Abstract: Aspects of the subject disclosure may include, for example, obtaining live video content from equipment of a media content provider, determining priority content within the live video content; segmenting the live video content into a plurality of tiles according to the priority content, and transcoding the live video content according to a type of client device. Further embodiments include determining an encoding schedule for the plurality of tiles according to the priority content, encoding the plurality of tiles according to the encoding schedule, and providing the plurality of tiles to the client device. Other embodiments are disclosed.
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公开(公告)号：US11010632B2
公开(公告)日：2021-05-18
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 , G06F3/01 , G06K9/32 , 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：US20210110610A1
公开(公告)日：2021-04-15
申请号：US16653351
申请日：2019-10-15
Applicant: AT&T Intellectual Property I, L.P.
Inventor： Tan Xu , David Crawford Gibbon , Bo Han , Eric Zavesky
Abstract: A processing system of a mobile device may determine the device's predicted viewport, which defines a portion of a real world environment that is expected to be visible to the device's user at a future time. The processing system may determine a set of extended reality anchors that are present in the real world environment, where each anchor stores a digital object that, when rendered by the device and presented to the user simultaneously with the real world environment, creates extended reality media. The processing system may remove a first subset anchors from the set, where locations of anchors in the first subset fall outside a threshold distance from the predicted viewport. The removing results in a second subset of anchors remaining in the set. The processing system may download a digital object from a second device, where the digital object is stored by an anchor of the second subset.
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公开(公告)号：US20210051308A1
公开(公告)日：2021-02-18
申请号：US16540511
申请日：2019-08-14
Applicant: AT&T Intellectual Property I, L.P.
Inventor： Bo Han , Jackson Jarrell Pair , Cheuk Yiu Ip
IPC: H04N13/194 , G06N20/00 , G06N3/08 , H04N13/117 , 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 movement input by a viewer, resulting in a predicted viewpoint, wherein a point cloud of the volumetric video is segmented into cells, and wherein at least some of the cells are visible to the viewer at a future time of playback based on the predicted viewpoint; retrieving a cell occupancy bitmap for the point cloud for the future time of playback; determining visible cells based on the cell occupancy bitmap and the predicted viewpoint; receiving the visible cells for the future time of playback; and rendering and displaying the point cloud within the visible cells during playback at the future time. Other embodiments are disclosed.
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公开(公告)号：US10826964B2
公开(公告)日：2020-11-03
申请号：US16122584
申请日：2018-09-05
Inventor： Bo Han , Vijay Gopalakrishnan , Zhengye Liu , Feng Qian
IPC: H04L29/06 , H04N21/845 , H04N19/37 , H04N21/81
Abstract: Aspects of the subject disclosure may include, for example, a device that includes a processing system with a processor, a memory that stores executable instructions that, when executed by the processing system, facilitate performance of operations, the operations including receiving a request that identifies a first list of tiles for streaming a panoramic video, determining a first total number of data packets required to transmit tiles in the first list of tiles, maintaining a second total number of empty data packets enqueued into a transport control protocol (TCP) buffer, maintaining a third total number of empty data packets dequeued from the TCP buffer, and enqueuing empty data packets into the TCP buffer whenever the first total number of data packets is greater than a difference between the second total number of empty data packets and the third total number of empty data packets. Other embodiments are disclosed.
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