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Exciting News from GenerIO: Launching our EU-funded Project TeKKI! Supported by the European Union and the State of NRW, Germany, GenerIO specializes in creating uniquely tailored PBR textures for materials such as wood, brick, and stone. GenerIO’s commitment is to enhance creative potential in media production and game development, leveraging human-centered AI solutions. For more information, visit GenerIO.
List of publications
2023
Auda, Jonas; Gruenefeld, Uwe; Faltaous, Sarah; Mayer, Sven; Schneegass, Stefan
A Scoping Survey on Cross-Reality Systems Journal Article
In: ACM Comput. Surv., 2023, ISSN: 0360-0300, (Just Accepted).
Abstract | Links | BibTeX | Tags: Augmented Reality, Augmented Virtuality, Bystander Inclusion, Collaboration, Cross-Reality Systems, Reality-Virtuality Continuum, Transitional Interfaces, Virtual Reality
@article{10.1145/3616536,
title = {A Scoping Survey on Cross-Reality Systems},
author = {Jonas Auda and Uwe Gruenefeld and Sarah Faltaous and Sven Mayer and Stefan Schneegass},
url = {https://doi.org/10.1145/3616536
https://jonasauda.de/wp-content/uploads/2023/09/Auda_CSUR_2023_A_Scoping_Survey_on_Cross-Reality_Systems_Literature_Classification.xlsx},
doi = {10.1145/3616536},
issn = {0360-0300},
year = {2023},
date = {2023-09-01},
urldate = {2023-09-01},
journal = {ACM Comput. Surv.},
publisher = {Association for Computing Machinery},
address = {New York, NY, USA},
abstract = {Immersive technologies such as Virtual Reality (VR) and Augmented Reality (AR) empower users to experience digital realities. Known as distinct technology classes, the lines between them are becoming increasingly blurry with recent technological advancements. New systems enable users to interact across technology classes or transition between them – referred to as cross-reality systems. Nevertheless, these systems are not well-understood. Hence, in this paper, we conducted a scoping literature review to classify and analyze cross-reality systems proposed in previous work. First, we define these systems by distinguishing three different types. Thereafter, we compile a literature corpus of 306 relevant publications, analyze the proposed systems, and present a comprehensive classification, including research topics, involved environments, and transition types. Based on the gathered literature, we extract nine guiding principles that can inform the development of cross-reality systems. We conclude with research challenges and opportunities.},
note = {Just Accepted},
keywords = {Augmented Reality, Augmented Virtuality, Bystander Inclusion, Collaboration, Cross-Reality Systems, Reality-Virtuality Continuum, Transitional Interfaces, Virtual Reality},
pubstate = {published},
tppubtype = {article}
}
Liebers, Carina; Prochazka, Marvin; PfĂĽtzenreuter, Niklas; Liebers, Jonathan; Auda, Jonas; Gruenefeld, Uwe; Schneegass, Stefan
Pointing It Out! Comparing Manual Segmentation of 3D Point Clouds between Desktop, Tablet, and Virtual Reality Journal Article
In: International Journal of Human–Computer Interaction, vol. 0, no. 0, pp. 1-15, 2023.
Links | BibTeX | Tags: Point Clouds, Virtual Reality
@article{doi:10.1080/10447318.2023.2238945,
title = {Pointing It Out! Comparing Manual Segmentation of 3D Point Clouds between Desktop, Tablet, and Virtual Reality},
author = {Carina Liebers and Marvin Prochazka and Niklas PfĂĽtzenreuter and Jonathan Liebers and Jonas Auda and Uwe Gruenefeld and Stefan Schneegass},
url = {https://doi.org/10.1080/10447318.2023.2238945},
doi = {10.1080/10447318.2023.2238945},
year = {2023},
date = {2023-01-01},
urldate = {2023-01-01},
journal = {International Journal of Human–Computer Interaction},
volume = {0},
number = {0},
pages = {1-15},
publisher = {Taylor & Francis},
keywords = {Point Clouds, Virtual Reality},
pubstate = {published},
tppubtype = {article}
}
2022
Faltaous, Sarah; Prochazka, Marvin; Auda, Jonas; Keppel, Jonas; Wittig, Nick; Gruenefeld, Uwe; Schneegass, Stefan
2022.
Abstract | Links | BibTeX | Tags: Illusions, Virtual Reality
@proceedings{faltaous2022give_weight_to_vr,
title = {Give Weight to VR: Manipulating Users’ Perception of Weight in Virtual Reality with Electric Muscle Stimulation},
author = {Faltaous, Sarah and Prochazka, Marvin and Auda, Jonas and Keppel, Jonas and Wittig, Nick and Gruenefeld, Uwe and Schneegass, Stefan},
url = {https://doi.org/10.1145/3543758.3547571},
doi = {10.1145/3543758.3547571},
year = {2022},
date = {2022-09-04},
urldate = {2022-09-04},
issue = {Proceedings of Mensch Und Computer 2022},
abstract = {Virtual Reality (VR) devices empower users to experience virtual worlds through rich visual and auditory sensations. However, believable haptic feedback that communicates the physical properties of virtual objects, such as their weight, is still unsolved in VR. The current trend towards hand tracking-based interactions, neglecting the typical controllers, further amplifies this problem. Hence, in this work, we investigate the combination of passive haptics and electric muscle stimulation to manipulate users’ perception of weight, and thus, simulate objects with different weights. In a laboratory user study, we investigate four differing electrode placements, stimulating different muscles, to determine which muscle results in the most potent perception of weight with the highest comfort. We found that actuating the biceps brachii or the triceps brachii muscles increased the weight perception of the users. Our findings lay the foundation for future investigations on weight perception in VR.},
keywords = {Illusions, Virtual Reality},
pubstate = {published},
tppubtype = {proceedings}
}
Auda, Jonas; Gruenefeld, Uwe; Schneegass, Stefan
If The Map Fits! Exploring Minimaps as Distractors from Non-Euclidean Spaces in Virtual Reality Proceedings Article
In: Proceedings of the 2022 CHI Conference on Human Factors in Computing Systems, 2022.
Abstract | Links | BibTeX | Tags: Illusions, Locomotion, Virtual Reality
@inproceedings{auda2022ifthemapfits,
title = {If The Map Fits! Exploring Minimaps as Distractors from Non-Euclidean Spaces in Virtual Reality},
author = {Jonas Auda and Uwe Gruenefeld and Stefan Schneegass},
url = {https://dl.acm.org/doi/10.1145/3491101.3519621},
doi = {10.1145/3491101.3519621},
year = {2022},
date = {2022-04-30},
urldate = {2022-04-30},
booktitle = {Proceedings of the 2022 CHI Conference on Human Factors in Computing Systems},
series = {Extended Abstracts of the 2022 CHI Conference on Human Factors in Computing Systems},
abstract = {With non-Euclidean spaces, Virtual Reality (VR) experiences can more efficiently exploit the available physical space by using overlapping virtual rooms. However, the illusion created by these spaces can be discovered, if the overlap is too large. Thus, in this work, we investigate if users can be distracted from the overlap by showing a minimap that suggests that there is none. When done correctly, more VR space can be mapped into the existing physical space, allowing for more spacious virtual experiences. Through a user study, we found that participants uncovered the overlap of two virtual rooms when it was at 100% or the overlapping room extended even further. Our results show that the additional minimap renders overlapping virtual rooms more believable and can serve as a helpful tool to use physical space more efficiently for natural locomotion in VR.},
keywords = {Illusions, Locomotion, Virtual Reality},
pubstate = {published},
tppubtype = {inproceedings}
}
Gruenefeld, Uwe; Auda, Jonas; Mathis, Florian; Schneegass, Stefan; Khamis, Mohamed; Gugenheimer, Jan; Mayer, Sven
VRception: Rapid Prototyping of Cross-Reality Systems in Virtual Reality Proceedings Article
In: 🏆Proceedings of the 2022 CHI Conference on Human Factors in Computing Systems, 2022.
Abstract | Links | BibTeX | Tags: Augmented Reality, Augmented Virtuality, Bystander Inclusion, Collaboration, Cross-Reality Systems, Reality-Virtuality Continuum, Transitional Interfaces, Virtual Reality
@inproceedings{gruenefeld2022vrception,
title = {VRception: Rapid Prototyping of Cross-Reality Systems in Virtual Reality},
author = {Uwe Gruenefeld and Jonas Auda and Florian Mathis and Stefan Schneegass and Mohamed Khamis and Jan Gugenheimer and Sven Mayer},
url = {https://dl.acm.org/doi/10.1145/3491102.3501821},
doi = {10.1145/3491102.3501821},
year = {2022},
date = {2022-04-30},
urldate = {2022-04-30},
booktitle = {🏆Proceedings of the 2022 CHI Conference on Human Factors in Computing Systems},
series = {Proceedings of the 2022 CHI Conference on Human Factors in Computing Systems},
abstract = {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. },
keywords = {Augmented Reality, Augmented Virtuality, Bystander Inclusion, Collaboration, Cross-Reality Systems, Reality-Virtuality Continuum, Transitional Interfaces, Virtual Reality},
pubstate = {published},
tppubtype = {inproceedings}
}
Auda, Jonas; Gruenefeld, Uwe; Kosch, Thomas; Schneegass, Stefan
The Butterfly Effect: Novel Opportunities for Steady-State Visually-Evoked Potential Stimuli in Virtual Reality Proceedings Article
In: Augmented Humans, 2022.
Abstract | Links | BibTeX | Tags: Brain-Computer Interfaces, EEG, SSVEP, Virtual Reality
@inproceedings{auda2022thebutterflyeffect,
title = {The Butterfly Effect: Novel Opportunities for Steady-State Visually-Evoked Potential Stimuli in Virtual Reality},
author = {Jonas Auda and Uwe Gruenefeld and Thomas Kosch and Stefan Schneegass},
url = {https://dl.acm.org/doi/fullHtml/10.1145/3519391.3519397},
doi = {10.1145/3519391.3519397},
year = {2022},
date = {2022-03-13},
urldate = {2022-03-13},
booktitle = {Augmented Humans},
series = {Augmented Humans 2022},
abstract = {In Virtual Reality (VR), Steady-State-Visual Evoked Potentials (SSVEPs) can be used to interact with the virtual environment using brain signals. However, the design of SSVEP-eliciting stimuli often does not match the virtual environment, and thus, disrupts the virtual experience. In this paper, we investigate stimulus designs with varying suitability to blend in virtual environments. Therefore, we created differently-shaped, virtual butterflies. The shapes vary from rectangular wings, over round wings, to a wing shape of a real butterfly. These butterflies elicit SSVEP responses through different animations-flickering or flapping wings. To evaluate our stimuli, we first extracted suitable frequencies for SSVEP responses from the literature. In a first study, we determined three frequencies yielding the best detection accuracy in VR. We used these frequencies in a second study to analyze detection accuracy and appearance ratings using our stimuli designs. Our work contributes insights into the design of SSVEP stimuli that blend into virtual environments and still elicit SSVEP responses.},
keywords = {Brain-Computer Interfaces, EEG, SSVEP, Virtual Reality},
pubstate = {published},
tppubtype = {inproceedings}
}
2021
Auda, Jonas; Verheyen, Nils; Mayer, Sven; Schneegass, Stefan
Flyables: Haptic Input Devices for Virtual Reality using Quadcopters Proceedings Article
In: 🏆ACM Symposium on Virtual Reality Software and Technology, 2021.
Abstract | Links | BibTeX | Tags: Drones, Haptics, Toolkit, Virtual Reality
@inproceedings{auda2021flyables,
title = {Flyables: Haptic Input Devices for Virtual Reality using Quadcopters},
author = {Jonas Auda and Nils Verheyen and Sven Mayer and Stefan Schneegass},
url = {https://www.researchgate.net/publication/355437552_Flyables_Haptic_Input_Devices_for_Virtual_Reality_using_Quadcopters
https://www.youtube.com/watch?v=udBv0pOpJZM},
doi = {10.1145/3489849.3489855},
year = {2021},
date = {2021-12-08},
urldate = {2021-12-08},
booktitle = {🏆ACM Symposium on Virtual Reality Software and Technology},
series = {VRST '21},
abstract = {Virtual Reality (VR) has made its way into everyday life. While VR delivers an ever-increasing level of immersion, controls and their haptics are still limited. Current VR headsets come with dedicated controllers that are used to control every virtual interface element. However, the controller input mostly differs from the virtual interface. This reduces immersion. To provide a more realistic input, we present Flyables, a toolkit that provides matching haptics for virtual user interface elements using quadcopters. We took five common virtual UI elements and built their physical counterparts. We attached them to quadcopters to deliver on-demand haptic feedback. In a user study, we compared Flyables to controller-based VR input. While controllers still outperform Flyables in terms of precision and task completion time, we found that Flyables present a more natural and playful way to interact with VR environments. Based on the results from the study, we outline research challenges that could improve interaction with Flyables in the future.},
keywords = {Drones, Haptics, Toolkit, Virtual Reality},
pubstate = {published},
tppubtype = {inproceedings}
}
Auda, Jonas; Busse, Leon; Pfeuffer, Ken; Gruenefeld, Uwe; Rivu, Radiah; Alt, Florian; Schneegass, Stefan
I’m in Control! Transferring Object Ownership Between Remote Users with Haptic Props in Virtual Reality Proceedings Article
In: Symposium on Spatial User Interaction, pp. 1–10, 2021.
Links | BibTeX | Tags: Collaboration, Haptics, Virtual Reality
@inproceedings{auda2021imincontrol,
title = {I’m in Control! Transferring Object Ownership Between Remote Users with Haptic Props in Virtual Reality},
author = {Jonas Auda and Leon Busse and Ken Pfeuffer and Uwe Gruenefeld and Radiah Rivu and Florian Alt and Stefan Schneegass},
url = {https://dl.acm.org/doi/10.1145/3485279.3485287
https://www.youtube.com/watch?v=FznSmSAtAiY},
year = {2021},
date = {2021-01-01},
urldate = {2021-01-01},
booktitle = {Symposium on Spatial User Interaction},
pages = {1--10},
keywords = {Collaboration, Haptics, Virtual Reality},
pubstate = {published},
tppubtype = {inproceedings}
}
Auda, Jonas; Gruenefeld, Uwe; Schneegass, Stefan
Enabling Reusable Haptic Props for Virtual Reality by Hand Displacement Book Section
In: Mensch und Computer 2021, pp. 412–417, 2021.
Links | BibTeX | Tags: Haptics, Illusions, Virtual Reality
@incollection{auda2021enabling,
title = {Enabling Reusable Haptic Props for Virtual Reality by Hand Displacement},
author = {Jonas Auda and Uwe Gruenefeld and Stefan Schneegass},
url = {https://dl.acm.org/doi/fullHtml/10.1145/3473856.3474000},
year = {2021},
date = {2021-01-01},
urldate = {2021-01-01},
booktitle = {Mensch und Computer 2021},
pages = {412--417},
keywords = {Haptics, Illusions, Virtual Reality},
pubstate = {published},
tppubtype = {incollection}
}
2020
Auda, Jonas; Weigel, Martin; Cauchard, Jessica R; Schneegass, Stefan
ProxyDrone: Autonomous Drone Landing on the Human Body. Proceedings Article
In: iHDI@CHI, 2020.
Links | BibTeX | Tags: Drones, Virtual Reality
@inproceedings{auda2020proxydrone,
title = {ProxyDrone: Autonomous Drone Landing on the Human Body.},
author = {Jonas Auda and Martin Weigel and Jessica R Cauchard and Stefan Schneegass},
url = {http://ceur-ws.org/Vol-2617/paper3.pdf},
year = {2020},
date = {2020-01-01},
urldate = {2020-01-01},
booktitle = {iHDI@CHI},
keywords = {Drones, Virtual Reality},
pubstate = {published},
tppubtype = {inproceedings}
}