The advent of affordable 3D capture and display hardware is making volumetric videoconferencing feasible. This technology increases the immersion of the participants, breaking the flat restriction of 2D screens, by allowing them to collaborate and interact in shared virtual reality spaces. In this paper we introduce the design and development of an architecture intended for volumetric videoconferencing that provides a highly realistic 3D representation of the participants, based on pointclouds. A pointcloud representation is suitable for real-time applications like video conferencing, due to its low-complexity and because it does not need a time consuming reconstruction process. As transport protocol we selected low latency DASH, due to its popularity and client-based adaptation mechanisms for tiling. This paper presents the architectural design, details the implementation, and provides some referential results. The demo will showcase the system in action, enabling volumetric videoconferencing using pointclouds.

pointclouds, low latency dash, social VR
Motion Spell, Paris, France
doi.org/10.1145/3339825.3393578
An end-to-end system for the production and delivery of photorealistic social immersive virtual reality experiences
ACM Multimedia Systems Conference
Centrum Wiskunde & Informatica, Amsterdam, The Netherlands

Jansen, A.J, Subramanyam, S, Bouqueau, R, Cernigliaro, G, Martos Cabré, M, Pérez, F, & César Garcia, P.S. (2020). A pipeline for multiparty volumetric video conferencing: Transmission of point clouds over low latency DASH. In MMSys 2020 - Proceedings of the 2020 Multimedia Systems Conference (pp. 341–344). doi:10.1145/3339825.3393578