Compensation for end to end delays in a VR system

Published 27 November 2002

Yuichiro Akatsuka, George A. Bekey

DOI10.1109/vrais.1998.658484

Citations23

TL;DR

This work measured the end to end time delay of the system and developed a compensation technique using a head motion model and a predictive Kalman filter, which reduces the error by 20 to 30%.

Abstract

In virtual reality applications, time delay is one of the essential factors which need compensation. We measured the end to end time delay of our system and developed a compensation technique using a head motion model and a predictive Kalman filter. Compared to a previously developed predictive filter with a model free approach, our filter reduces the error, by 20 to 30%. Due to recent advances in PC technology, it was possible to implement the entire system (including the compensation) on a single PC. Our system consists of a PC, head mounted display, and a 6 degrees of freedom magnetic tracking sensor.

Keywords

Computer ScienceEngineering

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