Walking walking-in-place flying, in virtual environments
Proceedings of the 26th annual conference on Computer graphics and interactive techniques
Pedestrian Tracking with Shoe-Mounted Inertial Sensors
IEEE Computer Graphics and Applications
The benefits of using a walking interface to navigate virtual environments
ACM Transactions on Computer-Human Interaction (TOCHI)
IEEE Transactions on Visualization and Computer Graphics
GUD WIP: Gait-Understanding-Driven Walking-In-Place
VR '10 Proceedings of the 2010 IEEE Virtual Reality Conference
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Virtual reality systems supporting real walking as a navigation interface usually lack auditory step feedback, although this could give additional information to the user e.g. about the ground he is walking on. In order to add matching auditory step feedback to virtual environments, we propose a calibration-free and easy to use system that can predict the occurrence time of stepping sounds based on human gait data. Our system is based on the timing of reliably occurring characteristic events in the gait cycle which are detected using foot mounted accelerometers and gyroscopes. This approach not only allows us to detect but to predict the time of an upcoming step sound in realtime. Based on data gathered in an experiment, we compare different suitable events that allow a tradeoff between the maximum precision of the prediction and the maximum time by which the sound can be predicted.