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公开(公告)号：US20230101262A1
公开(公告)日：2023-03-30
申请号：US17488931
申请日：2021-09-29
摘要： Aspects of the subject disclosure may include, for example, a method in which a processing system facilitates transmission of video data on RF bands; the video data includes startup video data to be presented during a startup period and post-startup video data to be presented subsequently. The method includes selecting an RF band according to whether the segment has startup video data; estimating a value, based at least in part on characteristics of the RF band, corresponding to a quality of experience (QoE) for the segment; determining whether the value satisfies a target criterion; and transmitting the segment using the RF band, in accordance with the value satisfying the target criterion. Other embodiments are disclosed.
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公开(公告)号：US10313717B2
公开(公告)日：2019-06-04
申请号：US15647588
申请日：2017-07-12
发明人： Eric D. Petajan , Emir Halepovic , Subhabrata Sen
IPC分类号： H04N21/236 , G11B27/34
摘要： Concepts and technologies are disclosed herein for adaptive bit rate mobile video objective testing. A system can receive a plurality of screen-capture frames, where each of the plurality of screen-capture frames corresponds to a respective frame of an adaptive bit rate video stream being displayed on a screen of a test device. The system can create a screen-capture video stream and determine that the screen-capture video stream corresponds to a reference video stream that is non-annotated. The system can obtain a reference video signature package, align the screen-capture video stream with the reference video stream using the reference video signature package, generate full reference video quality performance indicators, and determine delivery quality performance indicators for the screen-capture video stream. The system can join the full reference video quality performance indicators and the delivery quality performance indicators to form an objective quality of experience data structure.
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公开(公告)号：US20220232275A1
公开(公告)日：2022-07-21
申请号：US17657949
申请日：2022-04-04
发明人： Subhabrata Sen , Eric Petajan , Shichang Xu
IPC分类号： H04N21/2662 , H04N21/24 , H04N21/2343 , H04N21/232 , H04N21/236 , H04N19/10 , H04N19/154
摘要： A processing system may obtain a downscaled version of a reference copy of a video, comprising a plurality of downscaled versions of a plurality of frames of the reference copy of the video, obtain a first recorded frame of a first variant of a plurality of variants associated with the reference copy of the video, where the plurality of variants comprises a plurality of copies of the video encoded at different bitrates, generate a first downscaled version of the first recorded frame, calculate a first plurality of image distances between the first downscaled version of the first recorded frame and the plurality of downscaled versions of the plurality of frames of the reference copy of the video, and determine a first frame index of the first recorded frame in accordance with a first least image distance from among the first plurality of image distances that is calculated.
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公开(公告)号：US20190289343A1
公开(公告)日：2019-09-19
申请号：US16429907
申请日：2019-06-03
发明人： Eric D. Petajan , Emir Halepovic , Subhabrata Sen
IPC分类号： H04N21/236 , G11B27/34
摘要： Concepts and technologies are disclosed herein for adaptive bit rate mobile video objective testing. A system can receive a plurality of screen-capture frames, where each of the plurality of screen-capture frames corresponds to a respective frame of an adaptive bit rate video stream being displayed on a screen of a test device. The system can create a screen-capture video stream and determine that the screen-capture video stream corresponds to a reference video stream that is non-annotated. The system can obtain a reference video signature package, align the screen-capture video stream with the reference video stream using the reference video signature package, generate full reference video quality performance indicators, and determine delivery quality performance indicators for the screen-capture video stream. The system can join the full reference video quality performance indicators and the delivery quality performance indicators to form an objective quality of experience data structure.
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公开(公告)号：US20190020909A1
公开(公告)日：2019-01-17
申请号：US15647588
申请日：2017-07-12
发明人： Eric D. Petajan , Emir Halepovic , Subhabrata Sen
IPC分类号： H04N21/236 , G11B27/34
摘要： Concepts and technologies are disclosed herein for adaptive bit rate mobile video objective testing. A system can receive a plurality of screen-capture frames, where each of the plurality of screen-capture frames corresponds to a respective frame of an adaptive bit rate video stream being displayed on a screen of a test device. The system can create a screen-capture video stream and determine that the screen-capture video stream corresponds to a reference video stream that is non-annotated. The system can obtain a reference video signature package, align the screen-capture video stream with the reference video stream using the reference video signature package, generate full reference video quality performance indicators, and determine delivery quality performance indicators for the screen-capture video stream. The system can join the full reference video quality performance indicators and the delivery quality performance indicators to form an objective quality of experience data structure.
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公开(公告)号：US10602203B2
公开(公告)日：2020-03-24
申请号：US16429907
申请日：2019-06-03
发明人： Eric D. Petajan , Emir Halepovic , Subhabrata Sen
IPC分类号： H04N21/236 , H04N21/2343 , H04N21/238 , G11B27/34
摘要： Concepts and technologies are disclosed herein for adaptive bit rate mobile video objective testing. A system can receive a plurality of screen-capture frames, where each of the plurality of screen-capture frames corresponds to a respective frame of an adaptive bit rate video stream being displayed on a screen of a test device. The system can create a screen-capture video stream and determine that the screen-capture video stream corresponds to a reference video stream that is non-annotated. The system can obtain a reference video signature package, align the screen-capture video stream with the reference video stream using the reference video signature package, generate full reference video quality performance indicators, and determine delivery quality performance indicators for the screen-capture video stream. The system can join the full reference video quality performance indicators and the delivery quality performance indicators to form an objective quality of experience data structure.
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公开(公告)号：US11297365B2
公开(公告)日：2022-04-05
申请号：US16713389
申请日：2019-12-13
发明人： Subhabrata Sen , Eric Petajan , Shichang Xu
IPC分类号： H04N21/24 , H04N21/2662 , H04N21/2343 , H04N21/232 , H04N21/236 , H04N19/10 , H04N19/154
摘要： A processing system may obtain a downscaled version of a reference copy of a video, comprising a plurality of downscaled versions of a plurality of frames of the reference copy of the video, obtain a first recorded frame of a first variant of a plurality of variants associated with the reference copy of the video, where the plurality of variants comprises a plurality of copies of the video encoded at different bitrates, generate a first downscaled version of the first recorded frame, calculate a first plurality of image distances between the first downscaled version of the first recorded frame and the plurality of downscaled versions of the plurality of frames of the reference copy of the video, and determine a first frame index of the first recorded frame in accordance with a first least image distance from among the first plurality of image distances that is calculated.
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公开(公告)号：US20210185377A1
公开(公告)日：2021-06-17
申请号：US16713389
申请日：2019-12-13
发明人： Subhabrata Sen , Eric Petajan , Shichang Xu
IPC分类号： H04N21/2662 , H04N21/24 , H04N21/236 , H04N21/232 , H04N21/2343
摘要： A processing system may obtain a downscaled version of a reference copy of a video, comprising a plurality of downscaled versions of a plurality of frames of the reference copy of the video, obtain a first recorded frame of a first variant of a plurality of variants associated with the reference copy of the video, where the plurality of variants comprises a plurality of copies of the video encoded at different bitrates, generate a first downscaled version of the first recorded frame, calculate a first plurality of image distances between the first downscaled version of the first recorded frame and the plurality of downscaled versions of the plurality of frames of the reference copy of the video, and determine a first frame index of the first recorded frame in accordance with a first least image distance from among the first plurality of image distances that is calculated.
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公开(公告)号：US20230388570A1
公开(公告)日：2023-11-30
申请号：US18064163
申请日：2022-12-09
发明人： Subhabrata Sen , Bing Wang , Chinmaey Shende , Cheon Jin Park
IPC分类号： H04N21/2662 , H04N21/845 , H04N21/234
CPC分类号： H04N21/2662 , H04N21/845 , H04N21/23418
摘要： Aspects of the subject disclosure may include a method including steps of, for each segment of a content item during presentation of a content item, obtaining current consumption context information, determining a current consumption context for the segment according to the consumption context information, selecting a filtered set of audio track and video track variants for the segment according to the current consumption context and track variant information, selecting an audio track and a video track for the segment from the filtered set of audio track and video track variants according to a dynamic network condition, receiving a data stream for the segment from a server over a network including the audio track and the video track for the segment, and presenting the segment of the content item according to the audio track and the video track via a video output and an audio output. Other embodiments are disclosed.
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公开(公告)号：US11758203B2
公开(公告)日：2023-09-12
申请号：US16714229
申请日：2019-12-13
发明人： Shuai Hao , Subhabrata Sen , Emir Halepovic , Zahaib Akhtar , Ramesh Govindan , Yaguang Li
IPC分类号： H04N21/231 , H04N21/25 , H04N21/845 , H04N21/239 , G06F12/0871 , H04L67/568 , H04L67/62
CPC分类号： H04N21/23106 , H04N21/2393 , H04N21/251 , G06F12/0871 , G06F2212/602 , G06F2212/604 , G06F2212/6028 , H04L67/568 , H04L67/62
摘要： Devices, computer-readable media, and methods for making a cache admission decision regarding a video chunk are described. For instance, a processing system including at least one processor may obtain a request for a first chunk of a first video, determine that the first chunk is not stored in a cache, and apply, in response to the determining that the first chunk is not stored in the cache, a classifier to predict whether the first chunk will be re-requested within a time horizon, where the classifier is trained in accordance with a set of features associated with a plurality of chunks of a plurality of videos. When it is predicted via the classifier that the first chunk will be re-requested within the time horizon, the processing system may store the first chunk in the cache.
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