Details
| Originalsprache | Englisch |
|---|---|
| Titel des Sammelwerks | 2018 IFIP Networking Conference IFIP Networking and Workshops |
| Untertitel | IFIP Networking 2018 - Proceedings |
| Herausgeber (Verlag) | Institute of Electrical and Electronics Engineers Inc. |
| Seiten | 433-441 |
| Seitenumfang | 9 |
| ISBN (elektronisch) | 9783903176089 |
| Publikationsstatus | Veröffentlicht - Juli 2018 |
| Veranstaltung | 17th IFIP Networking Conference IFIP Networking and Workshops, IFIP Networking 2018 - Zurich, Schweiz Dauer: 14 Mai 2018 → 16 Mai 2018 |
Abstract
In free-viewpoint video arbitrary views of a scene or an object are rendered from a 3-dimensional scene representation that is obtained using multiple cameras or generated by computer graphics. The interactivity that is due to the viewpoint selection is particularly challenging in case of networked applications, where a server renders the scene from a viewpoint that is chosen by a remote client. Relying on widely-used standard browser-based video streaming technology, data transport is performed by the Transmission Control Protocol (TCP), implying an anticipated risk of potentially large delays. The magnitude, frequency, and origin of such delays are the focus of this work. To investigate the tail distribution of the delays, we use a controlled testbed environment and instrument the entire video streaming chain from the server-side renderer to the display at the client using various measurement points. We identify three major sources of delays: the video coders, the protocol stack, and the network. We investigate the causes of these delays and show a strong impact of network parameters, such as round-trip time and packet loss probability, on protocol stack delays. While stack delays can significantly exceed network delays, we find that stack delays can be reduced effectively by adapting the parameters of the video encoder.
ASJC Scopus Sachgebiete
- Informatik (insg.)
- Computernetzwerke und -kommunikation
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2018 IFIP Networking Conference IFIP Networking and Workshops: IFIP Networking 2018 - Proceedings. Institute of Electrical and Electronics Engineers Inc., 2018. S. 433-441 8696869.
Publikation: Beitrag in Buch/Bericht/Sammelwerk/Konferenzband › Aufsatz in Konferenzband › Forschung › Peer-Review
}
TY - GEN
T1 - On the Delay Performance of Browser-based Interactive TCP Free-viewpoint Streaming
AU - Varisetty, Tilak
AU - Fidler, Markus
AU - Ueberheide, Matthias
AU - Magnor, Marcus
N1 - Funding information: This work was supported in part by the European Research Council (ERC) under StG 306644.
PY - 2018/7
Y1 - 2018/7
N2 - In free-viewpoint video arbitrary views of a scene or an object are rendered from a 3-dimensional scene representation that is obtained using multiple cameras or generated by computer graphics. The interactivity that is due to the viewpoint selection is particularly challenging in case of networked applications, where a server renders the scene from a viewpoint that is chosen by a remote client. Relying on widely-used standard browser-based video streaming technology, data transport is performed by the Transmission Control Protocol (TCP), implying an anticipated risk of potentially large delays. The magnitude, frequency, and origin of such delays are the focus of this work. To investigate the tail distribution of the delays, we use a controlled testbed environment and instrument the entire video streaming chain from the server-side renderer to the display at the client using various measurement points. We identify three major sources of delays: the video coders, the protocol stack, and the network. We investigate the causes of these delays and show a strong impact of network parameters, such as round-trip time and packet loss probability, on protocol stack delays. While stack delays can significantly exceed network delays, we find that stack delays can be reduced effectively by adapting the parameters of the video encoder.
AB - In free-viewpoint video arbitrary views of a scene or an object are rendered from a 3-dimensional scene representation that is obtained using multiple cameras or generated by computer graphics. The interactivity that is due to the viewpoint selection is particularly challenging in case of networked applications, where a server renders the scene from a viewpoint that is chosen by a remote client. Relying on widely-used standard browser-based video streaming technology, data transport is performed by the Transmission Control Protocol (TCP), implying an anticipated risk of potentially large delays. The magnitude, frequency, and origin of such delays are the focus of this work. To investigate the tail distribution of the delays, we use a controlled testbed environment and instrument the entire video streaming chain from the server-side renderer to the display at the client using various measurement points. We identify three major sources of delays: the video coders, the protocol stack, and the network. We investigate the causes of these delays and show a strong impact of network parameters, such as round-trip time and packet loss probability, on protocol stack delays. While stack delays can significantly exceed network delays, we find that stack delays can be reduced effectively by adapting the parameters of the video encoder.
UR - http://www.scopus.com/inward/record.url?scp=85065469804&partnerID=8YFLogxK
U2 - 10.23919/ifipnetworking.2018.8696869
DO - 10.23919/ifipnetworking.2018.8696869
M3 - Conference contribution
AN - SCOPUS:85065469804
SP - 433
EP - 441
BT - 2018 IFIP Networking Conference IFIP Networking and Workshops
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 17th IFIP Networking Conference IFIP Networking and Workshops, IFIP Networking 2018
Y2 - 14 May 2018 through 16 May 2018
ER -