Weight perception analysis using pseudo-haptic feedback based on physical work evaluation

Abstract

Introduction: Since kinesthetic cues are not present in virtual environments, users have difficulty feeling the heaviness of virtual objects. To address this issue, pseudo-haptic approaches have been proposed to illusorily induce the weight of virtual objects through the user’s visual sensory system.Methods: In this paper, we used two methods to induce the impression of virtual objects’ heaviness. One relies on the direct modification of the control-display (C/D) ratio when lifting objects, and the other depends on controlling this ratio based on a velocity restriction. We innovatively measured each approach’s efficiency by analyzing physical work as an objective metric. In addition, we used Borg CR10 to measure users’ hand fatigue during the experimental phases.Results: Our findings are discussed in terms of individual lifting behavior in different pseudo-haptic methods. Furthermore, different virtual weight-lifting behaviors were compared to the same real-world weight-lifting behaviors.Discussion: According to our results, the direct control of the C/D ratio method provides virtual reality users with a more accurate weight perception than the velocity restriction one. Furthermore, with this first method, users’ lifting behavior was closer to the behavior when lifting real objects.

Effects of Pseudo-Weight Resistance Training Using Mixed-Reality Technology on Muscle Activation in Healthy Adults: A Preliminary Study

“…There have been numerous wearable pseudo-haptic devices in the form of haptic gloves that provide touch and weight sensations. However, they have been found to reduce the user's natural range of motion during exercise and remain expensive [14]. With the emergence of MR, which is a technology that combines AR and VR features, as it merges the real and virtual environments' [2] visual cues (interactive imagination), MR can be used to create a more efficient pseudo-weight based on visualization and perception.…”

Effect of Tactile Affordance During the Design of Extended Reality-Based Training Environments for Healthcare Contexts

“…HXRI can be defined as the application of current HCI-based principles and the formulation of novel principles for the creation of effective XR-based applications. Only a few researchers have focused on understanding the HCI-centric aspects of the XR platforms and devices [6,[16][17][18][19]. In this paper, the HXRI criteria termed tactile affordance is being described and its impact on both VR and MR-based environments developed for two healthcare-related training scenarios is being studied.…”

Enhancing Localization Performance with Extended Funneling Vibrotactile Feedback

“…This paper's specific focus lies in vibrotactile feedback, a haptic feedback form utilizing controlled vibrations to replicate sensations on the skin [6]. This technology seamlessly integrates into various devices, such as touchscreens, game controllers, and wearables, offering users realistic and immersive sensations that closely mimic physical attributes like texture, shape, weight, temperature, or resistance [7][8][9]. Consequently, the incorporation of vibrotactile feedback in VR allows users to fully engage their sense of touch, enabling them to explore, grasp, and manipulate virtual objects as if they were interacting with them in the physical world [9][10][11].…”