Identification of most influential factors in a Virtual Reality tracking system using hybrid method

Fabien Ezedine (1) , Jean-Marc Linares (2) , Wan Mansor Wan Muhamad (1) , Jean-Michel Sprauel (2)

1 Kuala Lumpur University
2 ISM - Institut des Sciences du Mouvement Etienne Jules Marey

This paper studies the factors that influence the accuracy of Virtual Reality (VR) systems, in particular for applications in a Cave Automatic Virtual Environment (CAVE). The CAVE can be used to train surgeon students. For this purpose, an application for a total knee arthroplasty surgery is investigated. To meet the requirements for a high quality training, the accuracy of the tracking system in the CAVE has to be improved. First, a complete model of the tracking system is created based on the extrinsic and intrinsic parameters of the eight-camera system. With this model, the uncertainty of the tracking system is determined for one location in the CAVE. Next, a hybrid method, comprising the Monte Carlo Method and Design Of Experiment, is used to find the most important factors influencing the tracking accuracy in the CAVE.

Keywords: Monte Carlo Method; Design Of Experiment; Hadamard matrix; Uncertainty; Virtual reality; Tracking system

Domains: Engineering Sciences [physics]

Fabien Ezedine, Jean-Marc Linares, Wan Mansor Wan Muhamad, Jean-Michel Sprauel. Identification of most influential factors in a Virtual Reality tracking system using hybrid method. ACTA IMEKO, 2014, 2 (2), pp.20 - 27. ⟨10.21014/acta_imeko.v2i2.136⟩. ⟨hal-01409793⟩