A Visual Quality of Experience Toolkit for Realistic Immersive Telepresence Applications

Immersive imaging applications gained a lot of traction in the last decade with the advances in capture, processing, compression, transmission, and display technologies. Recent works on spherical light fields and new view synthesis bring new challenges with respect to fast rendering of new views and a smooth quality of experience (QoE). The real-time rendering capabilities enable realistic immersive telepresence applications, which extend the traditional telepresence systems with improved visual realism and possible addition of depth cues. The recent efforts on the spherical light fields and new view synthesis approaches show that a combined light field and spherical data visualization will be beneficial for the scientific community. In this paper, we provide a WebGL- and WebXR-based visual QoE toolkit which can be used both on traditional displays and extended reality headsets, presenting various visual modalities. To validate the usefulness of the proposed toolkit, we conducted a pilot test on our publicly available spherical light field database. This toolkit can be used for easier and faster quality assessment and can support the scientific community for subjective visual QoE studies focusing on telecommunication, telepresence, and augmented telepresence applications.