An Evaluation of 360° Video and Audio Quality in an Artistic-Oriented Platform

Abstract

Consuming immersive content over a browser is possible due to libraries such as WebGL, WebXR and Three.js. 360°videos, however, are very large in size, and high definition content can cause buffering events even in environments with high bandwidth. Immersiveness is further achieved in 360°content delivery with the addition of ambisonic audio, which indicates the source of sound, according to head tracking of users, in the 3-D space. In situations where video quality needs to be reduced due to network constraints, ambisonics can help increase user-perceived quality. This paper introduces a study of user experience with 24 participants located in various countries considering multiple quality levels of audio and video. An artisticoriented platform for opera delivery is also described, in the context of the European Horizon 2020 TRACTION project.

Utility-Based Multipath Delivery of Prioritized XR Content in a Machine Learning and Network Slicing-enhanced Environment

“…TOPVR solution can be readily deployed in VRSliceFlex solution that focuses on processing large bursts of packets for 360°video, VR and gaming applications in the context of active RAN slicing within the 5G network architecture. Multi-sensory effects are also supported in FRADIS with OmniScent [23] which 360°videos to multiple olfaction dispensers. A version with integrated neural networks perform image recognition on 360°v ideo frames and trigger appropriate scents automatically.…”

“…Taking a stride beyond, Fuzzy Reinforcement Learning Driven Improved Video QoE (FRED-ViQ) approach leverages both the fuzzy and Deep Reinforcement Learning (DRL) techniques for enhanced streaming experiences. A DASH-based adaptation solution, 360-ADAPT [25] works within FRADIS leveraging DASH to dynamically adjust streamed 360°media content with the goal to increase the quality of immersive viewer experience, while maintaining high quality audio.…”

OmniScent: An Omnidirectional Olfaction-Enhanced Virtual Reality 360° Video Delivery Solution for Increasing Viewer Quality of Experience

“…WebXR technology is a key enabler for the streaming of 360 • content on PCs over Web browsers and also on VR headsets [31], [32], [33]. It is able to render 3D scenes with motion and orientation tracking.…”