Hand gesture controls for image categorization in immersive virtual environments

Proceedings of the 2020 CHI Conference on Human Factors in Computing Systems

et al. 2020

Influence of interaction fidelity and rendering quality on perceived user experience have been largely explored in Virtual Reality (VR). However, differences in interaction choices triggered by these rendering cues have not yet been explored. We present a study analysing the effect of thermal visual cues and contextual information on 50 participants' approach to grasp and move a virtual mug. This study comprises 3 different temperature cues (baseline empty, hot and cold) and 4 contextual representations; all embedded in a VR scenario. We evaluate 2 different hand representations (abstract and human) to assess grasp metrics. Results show temperature cues influenced grasp location, with the mug handle being predominantly grasped with a smaller grasp aperture for the hot condition, while the body and top were preferred for baseline and cold conditions.

Section: Introductionmentioning

confidence: 99%

Too Hot to Handle: An Evaluation of the Effect of Thermal Visual Representation on User Grasping Interaction in Virtual Reality

Proceedings of the 2020 CHI Conference on Human Factors in Computing Systems

et al. 2020

“…These applications aim to achieve high user performance, and therefore need to mimic reality as closely as possible and enable highly immersive environments and natural interactions [36]. To achieve this, researchers have focused on developing VR interactions that use the human hand as an input tool [1], taking advantage of its multiple degrees of freedom [63] and the human ability to use hands for acquiring and manipulating objects with ease [57].…”

Section: Introductionmentioning

confidence: 99%

Freehand Grasping: An Analysis of Grasping for Docking Tasks in Virtual Reality

2021 IEEE Virtual Reality and 3D User Interfaces (VR)

et al. 2021

“…Researchers have highly focused on understanding, studying and classifying aspects of human hand usage when interacting with objects, with the aim of replicating grasping for robotic arms [26]. Moreover, researchers took advantage of humans' ability to use hands for acquiring and manipulating objects with ease [24,34] and have implemented grasping of virtual objects, aiming to achieve natural, intuitive interactions in Virtual Reality (VR). Aiming to mimic reality as closely as possible, grasping interactions have received increased attention from the VR community [6,7].…”

Section: Introductionmentioning

confidence: 99%

A Grasp on Reality: Understanding Grasping Patterns for Object Interaction in Real and Virtual Environments

2021 IEEE International Symposium on Mixed and Augmented Reality Adjunct (ISMAR-Adjunct)

et al. 2021

Grasping is the most natural and primary interaction paradigm people perform for every-day manual tasks in reality. However, while grasping real objects in Real Environments (RE) has been highly explored in literature, there is a recent emerging trend to explore the complications and nuances of hand interaction including grasping in Virtual Environments (VE). While this is leading towards a richer body of work to understand users' approach to grasping in VE, a direct comparison between grasping real objects in RE and grasping virtual representations of real objects in VE has not been explored before. To address this gap, we perform a user study (n=20) on 7 representative real objects and their virtual twins from the "Yale-Carnegie Mellon University-Berkeley Object and Model Set". We report on 840 grasp instances collected during a grasp and translate task across RE and VE. We present initial results on the observed differences between RE and VE grasping across the different objects using the grasp type metric from real grasping studies. We explore the rationale for any observed differences between the RE and VE and present indicative trends for VE grasping. Finally, we propose methods and approaches for furthering work within VE grasping for improving the natural grasping interface.