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231225s2021 xx |||||o 00| ||eng c |
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|a 10.1109/TVCG.2021.3067762
|2 doi
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|a pubmed24n1076.xml
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|a eng
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| 100 |
1 |
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|a Li, David
|e verfasserin
|4 aut
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| 245 |
1 |
2 |
|a A Log-Rectilinear Transformation for Foveated 360-degree Video Streaming
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| 264 |
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1 |
|c 2021
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| 336 |
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|a Text
|b txt
|2 rdacontent
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| 337 |
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|a ƒaComputermedien
|b c
|2 rdamedia
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| 338 |
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|a ƒa Online-Ressource
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|2 rdacarrier
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| 500 |
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|a Date Revised 20.04.2021
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|a published: Print-Electronic
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|a Citation Status PubMed-not-MEDLINE
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| 520 |
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|a With the rapidly increasing resolutions of 360° cameras, head-mounted displays, and live-streaming services, streaming high-resolution panoramic videos over limited-bandwidth networks is becoming a critical challenge. Foveated video streaming can address this rising challenge in the context of eye-tracking-equipped virtual reality head-mounted displays. However, conventional log-polar foveated rendering suffers from a number of visual artifacts such as aliasing and flickering. In this paper, we introduce a new log-rectilinear transformation that incorporates summed-area table filtering and off-the-shelf video codecs to enable foveated streaming of 360° videos suitable for VR headsets with built-in eye-tracking. To validate our approach, we build a client-server system prototype for streaming 360° videos which leverages parallel algorithms over real-time video transcoding. We conduct quantitative experiments on an existing 360° video dataset and observe that the log-rectilinear transformation paired with summed-area table filtering heavily reduces flickering compared to log-polar subsampling while also yielding an additional 10% reduction in bandwidth usage
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| 650 |
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|a Journal Article
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| 700 |
1 |
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|a Du, Ruofei
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Babu, Adharsh
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Brumar, Camelia D
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Varshney, Amitabh
|e verfasserin
|4 aut
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| 773 |
0 |
8 |
|i Enthalten in
|t IEEE transactions on visualization and computer graphics
|d 1996
|g 27(2021), 5 vom: 06. Mai, Seite 2638-2647
|w (DE-627)NLM098269445
|x 1941-0506
|7 nnns
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| 773 |
1 |
8 |
|g volume:27
|g year:2021
|g number:5
|g day:06
|g month:05
|g pages:2638-2647
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| 856 |
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|u http://dx.doi.org/10.1109/TVCG.2021.3067762
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