Conference Agenda

Overview and details of the sessions of this conference. Please select a date or location to show only sessions at that day or location. Please select a single session for detailed view (with abstracts and downloads if available).

Session Overview
MCI-SE05: Augmented Reality, Virtual Reality, and Natural Interaction
Tuesday, 06/Sept/2022:
4:00pm - 5:30pm

Session Chair: Fiona Draxler
Location: Darmstadtium / Ferrum

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4:00pm - 4:15pm

An AR User Interface for the Evaluation of Visuospatial Abilities

Charlotte Imenkamp1, Annika Hanert2, Robby Schönfeld3, Thorsten Bartsch2, Felix Woelk1

1Dept. of Applied Computer Science, Faculty of Computer Science and Electrical Engineering, University of Applied Sciences Kiel, Germany; 2Dept. of Neurology, Memory Disorders and Dementia Group, University Hospital Schleswig-Holstein, Kiel, Kiel University, Germany; 3Institut für Psychologie, Philosophische Fakultät I, Martin-Luther-Universität Halle, Germany

Early pathogen processes of Alzheimer´s dementia (AD) develop years before the time of diagnosis. The process starts in hippocampal regions, which play an important role in spatial cognitive abilities including spatial memory. The decrease of these abilities leads to deficits in orientation and navigation and has a high impact on everyday live. A simple, fast and exact evaluation of the spatial memory impairment could help to detect the disease at an early stage (e.g. during a regular screening) and could thus enable stopping or slowing down the process. This work aims at the development of such a screening tool by combining a version of the established Smith-Milner paradigm (SMP) for analysis of spatial-cognitive deficits with the technical possibilities of the augmented-reality (AR) technology. A new AR-application was developed and the user acceptance was evaluated with a first group of healthy subjects (N = 40). The user interface of the AR application was specifically tailored for easy use by older participants and non-technical physicians.

4:15pm - 4:30pm

A Touch of Realities: Car-Interior-Based Haptic Interaction Supports In-Car VR Recovery from Interruptions

Jingyi Li, Linda Hirsch, Tianyang Lu, Sven Mayer, Andreas Butz

LMU Munich, Germany

Real-world interruptions will challenge virtual reality (VR) users in future everyday transport. For example, while passengers are immersed at a virtual beach, an incoming phone call might interrupt their presence and relaxation. We investigated how to help users recover from such interruptions by exploring haptic and visual cues that help them recall their prior presence in VR. We approached this by developing a passive haptic display for rear-seat passengers using an interactive armrest. In a lab study (N=30), participants played with virtual sand to relax, feeling the changes in the real armrest and seeing them on the virtual beach. We compared this multi-sensory experience to the single modalities (just visuals or just haptics). The results showed that the multi-modal experience lowered awareness of the armrest more and fostered a feeling of connectedness to the virtual world after real-world interruptions. We propose using car-interior-based haptic displays to support in-car VR recovery from interruptions.

4:30pm - 4:45pm

A Survey of Natural Design for Interaction

Linda Hirsch, Jingyi Li, Sven Mayer, Andreas Butz

LMU Munich, Germany

The term ''Natural Design'' has various meanings and applications within and beyond the human-computer interaction community. Yet, there is no consensus on whether it is a relevant design approach or only a descriptive term without profound meaning.

We investigated the current understanding and design potential of ''Natural Design'' for interaction in a systematic literature review.

By analyzing and rating 113 papers, we identified 47 relevant papers that applied Natural Design in different contexts.

The understanding of the approach changes from nature-related inspirations to context-dependent naturalness based on increasing familiarity or expectations. We present a structured overview of the top-rated papers, contribute a systematic Natural Design model for interaction and add 20 implications for applying Natural Design to natural user interfaces, natural interaction, or computation.

We identified ''Natural Design'' as a relevant design approach to create intuitive and embedded interfaces that can profit from related concepts outside human-computer interaction.

4:45pm - 5:00pm

The Impact of Varying Resolution and Motion Realism of Avatars in Augmented Reality-Supported, Virtually Co-located Sales Consultations

Gordon Brown, Julien Hust, Sebastian Büttner, Michael Prilla

TU Clausthal, Germany

The use of avatars in AR-based remote cooperation has gained a lot of interest in research and practice, as it allows remote cooperators to be virtually co-located. The realism of avatars has been found to be key to their successful use and is mainly affected by avatar resolution and movement realism. As hardware limits and difficulties to create human-like animations create challenges for designers to develop realistic avatars, design knowledge is needed to create suitable and feasible representations of avatars. However, there is hardly any work addressing this challenge. This paper presents an initial study that investigates this area and compares the impact of avatar resolution and movement realism on remote cooperation.

5:00pm - 5:15pm

SkyPort: Investigating 3D Teleportation Methods in Virtual Environments

Andrii Matviienko1, Florian Müller2, Martin Schmitz1, Marco Fendrich1, Max Mühlhäuser1

1Technical University of Darmstadt; 2LMU Munich, Germany

Teleportation has become the de facto standard of locomotion in Virtual Reality (VR) environments. However, teleportation with parabolic and linear target aiming methods is restricted to horizontal 2D planes and it is unknown how they transfer to the 3D space. In this paper, we propose six 3D teleportation methods in virtual environments based on the combination of two existing aiming methods (linear and parabolic) and three types of transitioning to a target (instant, interpolated and continuous). To investigate the performance of the proposed teleportation methods, we conducted a controlled lab experiment (N = 24) with a mid-air coin collection task to assess accuracy, efficiency and VR sickness. We discovered that the linear aiming method leads to faster and more accurate target selection. Moreover, a combination of linear aiming and instant transitioning leads to the highest efficiency and accuracy without increasing VR sickness.

5:15pm - 5:30pm

VRception: Rapid Prototyping of Cross-Reality Systems in Virtual Reality

Uwe Gruenefeld1, Jonas Auda1, Florian Mathis2, Stefan Schneegass1, Mohamed Khamis2, Jan Gugenheimer3, Sven Mayer4

1University of Duisburg-Essen; 2University of Glasgow; 3Institut Polytechnique de Paris; 4LMU Munich

Cross-reality systems empower users to transition along the reality-virtuality continuum or collaborate with others experiencing different manifestations of it. However, prototyping these systems is challenging, as it requires sophisticated technical skills, time, and often expensive hardware. We present VRception, a concept and toolkit for quick and easy prototyping of cross-reality systems. By simulating all levels of the reality-virtuality continuum entirely in Virtual Reality, our concept overcomes the asynchronicity of realities, eliminating technical obstacles. Our VRception Toolkit leverages this concept to allow rapid prototyping of cross-reality systems and easy remixing of elements from all continuum levels. We replicated six cross-reality papers using our toolkit and presented them to their authors. Interviews with them revealed that our toolkit sufficiently replicates their core functionalities and allows quick iterations. Additionally, remote participants used our toolkit in pairs to collaboratively implement prototypes in about eight minutes that they would have otherwise expected to take days.

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