AmplifiedCoaster: A Study of Methods for Connecting Ascent and Descent Experiences in a VR Ride Integrating an Electric Wheeled Ramp

Ito Shunta, Nakanishi Yasuto

doi:10.18974/tvrsj.28.2_81

<p>We have developed a novel virtual reality (VR) ride system consisting of a head-mounted display (HMD), an electric wheelchair and an electric wheeled ramp to amplify the perception of virtual ascent and descent. To provide multiple ascents and descents experience using the system, this paper investigates two methods for connecting ascent and descent experience, which present sensations of ascent to translation and translation to descent. With a method where the VR ride moves forward on a trapezoidalshaped electric wheeled ramp, it needs the same number of ramps as the number of ascents and descents. On the other hand, with a method where the VR ride moves backward on the ramp, it is possible to present multiple ascents and descents experience by moving the VR ride forward and backward between the two ramps. To explore the hypothesis that the two methods can present the same level of ascending and descending sensation, we conducted psychological experiments analyzing and comparing the human sensitivity to the bending gains that describe the discrepancy between the bending of curved slopes in real and virtual space. As a result, there was no sufficient difference between the perceived thresholds of the two methods. Thus, we concluded that the method where the VR ride moves backward on the electric wheeled ramp is effective for providing multiple ascents and descents experience.</p>

AmplifiedCoaster: A Study of Methods for Connecting Ascent and Descent Experiences in a VR Ride Integrating an Electric Wheeled Ramp

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