The Impact of Stalling on the Perceptual Quality of HTTP-based Omnidirectional Video Streaming
Wei Zhang, Wenjie Zou, Fuzheng Yang
Abstract
Recent years have witnessed increasing advances in immersive media technologies. Omnidirectional videos, which record a 360-degree spherical visual scene, have gained popularity at an accelerated speed. However, streaming this visual media is extremely bandwidth demanding when compared to traditional 2D videos, thus challenging current video streaming strategies and network conditions. Understanding how human visual system perceives the omnidirectional video becomes an urgent research topic. In this work, we focus on investigating the impact of stalling on the perceptual quality of omnidirectional video streaming. A systematic experiment with various phases was conducted to obtain the quality perception results towards omnidirectional video stalling. Experimental results showed that human visual system views the omnidirectional video in a different manner if compared with traditional 2D videos. This difference further triggers an alleviation in the annoyance level of stalling. A questionnaire focused on revealing the underlying reason regarding this difference was further designed. Findings of this work provide insights into the visual quality perception of stalling events during omnidirectional video playback. Conclusions of this paper can be used as guidelines for the design of video streaming protocols as well as network dimensioning.
BibTeX
@inproceedings{icassp2019_theimpactofstall,
title = {The Impact of Stalling on the Perceptual Quality of HTTP-based Omnidirectional Video Streaming},
author = {Wei Zhang and Wenjie Zou and Fuzheng Yang},
booktitle = {ICASSP 2019},
year = {2019}
}