Skip to main content
U.S. flag

An official website of the United States government

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Secure .gov websites use HTTPS
A lock ( ) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.

Head Rotation Model for VR System Level Simulations

Published

Author(s)

Steve Blandino, Tanguy Ropitault, Raied Caromi, Nada T. Golmie

Abstract

The paper proposes a flexible mathematical time-correlated model, by leveraging experimental data adopted from recent measurements, to describe the head rotation in virtual reality applications. Virtual Reality (VR) promises immersive experience in diverse areas such as gaming, entertainment, education, healthcare, and remote monitoring. In VR environments, users can navigate 360-degree content by moving or looking around in all directions, by rotating their heads, as in real life. A rapid head rotation can corrupt the wireless link, degrading the user experience. Due to the lack of proper head rotation models, test-beds are usually required to analyze VR systems. In this paper, we propose a simple, yet flexible, mathematical time-correlated model, by leveraging experimental data adopted from a recent dataset. We show that the probability density function of head rotation pitch and roll angles can be modeled as Gaussian distributions, while the probability density function of yaw angles can be modeled as a Gaussian mixture distribution. To introduce temporal correlation, we extrapolate the power spectral density of the angular processes, which are modeled with a bi-exponential decay. Finally, we show how the model can support and accelerate the design of future VR systems by proposing analysis of a distributed MIMO system and situational awareness ML-based beamforming training.
Proceedings Title
IEEE International Symposium on Multimedia
Conference Dates
November 29-December 1, 2021
Conference Location
Napoli, IT

Citation

Blandino, S. , Ropitault, T. , Caromi, R. and Golmie, N. (2022), Head Rotation Model for VR System Level Simulations, IEEE International Symposium on Multimedia, Napoli, IT, [online], https://tsapps.nist.gov/publication/get_pdf.cfm?pub_id=932774 (Accessed March 1, 2024)
Created January 10, 2022, Updated December 11, 2023