Rate-adaptive streaming of 360-degree videos with head-motion-aware viewport margins

Name: Rate-adaptive streaming of 360-degree videos with head-motion-aware viewport margins
Author: Akçay, Mehmet Necmettin, Kara, Burak, Beğen, Ali Cengiz, Ahsan, S., Curcio, I. D. D., Aksu, E.

İsim	Rate-adaptive streaming of 360-degree videos with head-motion-aware viewport margins
Yazar	Akçay, Mehmet Necmettin, Kara, Burak, Beğen, Ali Cengiz, Ahsan, S., Curcio, I. D. D., Aksu, E.
Basım Tarihi:	2022
Basım Yeri	- IEEE
Konu	DASH, OMAF, Tiled media, Virtual reality
Tür	Belge
Dil	İngilizce
Dijital	Evet
Yazma	Hayır
Kütüphane:	Özyeğin Üniversitesi
Demirbaş Numarası	978-166549548-6
Kayıt Numarası	8f11062b-7eff-4e01-85a8-1e7a921aebe4
Lokasyon	Computer Science
Tarih	2022
Örnek Metin	Efficient use of available bandwidth is vital when streaming 360-degree videos as users rarely have enough bandwidth for a pleasant experience. A promising solution is the combination of viewport-dependent streaming using tiled video and rate adaptation, where the goal is to spend most of the available bandwidth for the viewport tiles. However, head motions resulting in a change in the viewport tiles briefly cause low-quality rendering until the new tiles can be replaced with high-quality versions. Previously, viewport margins-fixed regions around the viewport rendered at a medium quality-were proposed to make the viewport changes less abrupt. Later on, Head-motion-aware Viewport Margins (HMAVM) were implemented to further smooth the transitions at the expense of increased bandwidth consumption. In this paper, we manage the overall bandwidth cost of HMAVMs better by first developing a set of algorithms that trade off the quality of some viewport tiles and then making the margin selection part of the rate-adaptation algorithm.
DOI	10.1109/MIPR54900.2022.00056

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Rate-adaptive streaming of 360-degree videos with head-motion-aware viewport margins

Yazar Akçay, Mehmet Necmettin, Kara, Burak, Beğen, Ali Cengiz, Ahsan, S., Curcio, I. D. D., Aksu, E.

Basım Tarihi 2022

Basım Yeri - IEEE

Konu DASH, OMAF, Tiled media, Virtual reality

Tür Belge

Dil İngilizce

Dijital Evet

Yazma Hayır

Kütüphane Özyeğin Üniversitesi

Demirbaş Numarası 978-166549548-6

Kayıt Numarası 8f11062b-7eff-4e01-85a8-1e7a921aebe4

Lokasyon Computer Science

Tarih 2022

Örnek Metin Efficient use of available bandwidth is vital when streaming 360-degree videos as users rarely have enough bandwidth for a pleasant experience. A promising solution is the combination of viewport-dependent streaming using tiled video and rate adaptation, where the goal is to spend most of the available bandwidth for the viewport tiles. However, head motions resulting in a change in the viewport tiles briefly cause low-quality rendering until the new tiles can be replaced with high-quality versions. Previously, viewport margins-fixed regions around the viewport rendered at a medium quality-were proposed to make the viewport changes less abrupt. Later on, Head-motion-aware Viewport Margins (HMAVM) were implemented to further smooth the transitions at the expense of increased bandwidth consumption. In this paper, we manage the overall bandwidth cost of HMAVMs better by first developing a set of algorithms that trade off the quality of some viewport tiles and then making the margin selection part of the rate-adaptation algorithm.

DOI 10.1109/MIPR54900.2022.00056