2018
|
 | Jason Hochreiter; Salam Daher; Gerd Bruder; Greg Welch Cognitive and touch performance effects of mismatched 3D physical and visual perceptions Proceedings Article In: IEEE Virtual Reality 2018 (VR 2018), 2018. @inproceedings{Hochreiter2018,
title = {Cognitive and touch performance effects of mismatched 3D physical and visual perceptions},
author = {Jason Hochreiter and Salam Daher and Gerd Bruder and Greg Welch},
url = {https://sreal.ucf.edu/wp-content/uploads/2018/05/hochreiter2018.pdf},
year = {2018},
date = {2018-03-22},
booktitle = {IEEE Virtual Reality 2018 (VR 2018)},
abstract = {In a controlled human-subject study we investigated the effects of mismatched physical and visual perception on cognitive load and performance in an Augmented Reality (AR) touching task by varying the physical fidelity (matching vs. non-matching physical shape) and visual mechanism (projector-based vs. HMD-based AR) of the representation. Participants touched visual targets on four corresponding physical-visual representations of a human head. We evaluated their performance in terms of touch accuracy, response time, and a cognitive load task requiring target size estimations during a concurrent (secondary) counting task. Results indicated higher performance, lower cognitive load, and increased usability when participants touched a matching physical head-shaped surface and with visuals provided by a projector from underneath.},
keywords = {},
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In a controlled human-subject study we investigated the effects of mismatched physical and visual perception on cognitive load and performance in an Augmented Reality (AR) touching task by varying the physical fidelity (matching vs. non-matching physical shape) and visual mechanism (projector-based vs. HMD-based AR) of the representation. Participants touched visual targets on four corresponding physical-visual representations of a human head. We evaluated their performance in terms of touch accuracy, response time, and a cognitive load task requiring target size estimations during a concurrent (secondary) counting task. Results indicated higher performance, lower cognitive load, and increased usability when participants touched a matching physical head-shaped surface and with visuals provided by a projector from underneath. |
 | Myungho Lee; Gerd Bruder; Tobias Hollerer; Greg Welch Effects of Unaugmented Periphery and Vibrotactile Feedback on Proxemics with Virtual Humans in AR Journal Article In: IEEE Transactions on Visualization and Computer Graphics, vol. 24, no. 4, pp. 1525-1534, 2018. @article{Lee2018,
title = {Effects of Unaugmented Periphery and Vibrotactile Feedback on Proxemics with Virtual Humans in AR},
author = {Myungho Lee and Gerd Bruder and Tobias Hollerer and Greg Welch},
url = {https://sreal.ucf.edu/wp-content/uploads/2018/04/Lee2018.pdf},
doi = {10.1109/TVCG.2018.2794074 },
year = {2018},
date = {2018-02-23},
journal = {IEEE Transactions on Visualization and Computer Graphics},
volume = {24},
number = {4},
pages = {1525-1534},
abstract = {In this paper, we investigate factors and issues related to human locomotion behavior and proxemics in the presence of a real or virtual human in augmented reality (AR). First, we discuss a unique issue with current-state optical see-through head-mounted displays. Second, we discuss the limited multimodal feedback provided by virtual humans in AR, present a potential improvement based on vibrotactile feedback induced via the floor to compensate for the limited augmented visual field, and report results showing that benefits of such vibrations are less visible in objective locomotion behavior than in subjective estimates of co-presence. Third, we investigate and document significant differences in the effects that real and virtual humans have on locomotion behavior in AR. We discuss potential explanations for these effects and analyze effects of different types of behaviors that such real or virtual humans may exhibit in the presence of an observer.},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
In this paper, we investigate factors and issues related to human locomotion behavior and proxemics in the presence of a real or virtual human in augmented reality (AR). First, we discuss a unique issue with current-state optical see-through head-mounted displays. Second, we discuss the limited multimodal feedback provided by virtual humans in AR, present a potential improvement based on vibrotactile feedback induced via the floor to compensate for the limited augmented visual field, and report results showing that benefits of such vibrations are less visible in objective locomotion behavior than in subjective estimates of co-presence. Third, we investigate and document significant differences in the effects that real and virtual humans have on locomotion behavior in AR. We discuss potential explanations for these effects and analyze effects of different types of behaviors that such real or virtual humans may exhibit in the presence of an observer. |
2017
|
![[POSTER] The Impact of Avatar-owner Visual Similarity on Body Ownership in Immersive Virtual Reality](https://sreal.ucf.edu/wp-content/uploads/2018/05/Jo2017.jpg) | Dongsik Jo; Kangsoo Kim; Gregory F. Welch; Woojin Jeon; Yongwan Kim; Ki-Hong Kim; Gerard Jounghyun Kim [POSTER] The Impact of Avatar-owner Visual Similarity on Body Ownership in Immersive Virtual Reality Proceedings Article In: Proceedings of the 23rd ACM Symposium on Virtual Reality Software and Technology, pp. 77:1–77:2, ACM, Gothenburg, Sweden, 2017, ISBN: 978-1-4503-5548-3. @inproceedings{Jo2017,
title = {[POSTER] The Impact of Avatar-owner Visual Similarity on Body Ownership in Immersive Virtual Reality},
author = {Dongsik Jo and Kangsoo Kim and Gregory F. Welch and Woojin Jeon and Yongwan Kim and Ki-Hong Kim and Gerard Jounghyun Kim},
url = {https://sreal.ucf.edu/wp-content/uploads/2018/05/Jo2017.pdf},
doi = {10.1145/3139131.3141214},
isbn = {978-1-4503-5548-3},
year = {2017},
date = {2017-11-08},
booktitle = {Proceedings of the 23rd ACM Symposium on Virtual Reality Software and Technology},
pages = {77:1--77:2},
publisher = {ACM},
address = {Gothenburg, Sweden},
series = {VRST '17},
abstract = {In this paper we report on an investigation of the effects of a self-avatar's visual similarity to a user's actual appearance, on their perceptions of the avatar in an immersive virtual reality (IVR) experience. We conducted a user study to examine the participant's sense of body ownership, presence and visual realism under three levels of avatar-owner visual similarity: (L1) an avatar reconstructed from real imagery of the participant's appearance, (L2) a cartoon-like virtual avatar created by a 3D artist for each participant, where the avatar shoes and clothing mimic that of the participant, but using a low-fidelity model, and (L3) a cartoon-like virtual avatar with a pre-defined appearance for the shoes and clothing. Surprisingly, the results indicate that the participants generally exhibited the highest sense of body ownership and presence when inhabiting the cartoon-like virtual avatar mimicking the outfit of the participant (L2), despite the relatively low participant similarity. We present our experiment and main findings, also, discuss the potential impact of a self-avatar's visual differences on human perceptions in IVR.},
keywords = {},
pubstate = {published},
tppubtype = {inproceedings}
}
In this paper we report on an investigation of the effects of a self-avatar's visual similarity to a user's actual appearance, on their perceptions of the avatar in an immersive virtual reality (IVR) experience. We conducted a user study to examine the participant's sense of body ownership, presence and visual realism under three levels of avatar-owner visual similarity: (L1) an avatar reconstructed from real imagery of the participant's appearance, (L2) a cartoon-like virtual avatar created by a 3D artist for each participant, where the avatar shoes and clothing mimic that of the participant, but using a low-fidelity model, and (L3) a cartoon-like virtual avatar with a pre-defined appearance for the shoes and clothing. Surprisingly, the results indicate that the participants generally exhibited the highest sense of body ownership and presence when inhabiting the cartoon-like virtual avatar mimicking the outfit of the participant (L2), despite the relatively low participant similarity. We present our experiment and main findings, also, discuss the potential impact of a self-avatar's visual differences on human perceptions in IVR. |
 | Salam Daher; Kangsoo Kim; Myungho Lee; Ryan Schubert; Gerd Bruder; Jeremy Bailenson; Greg Welch Effects of Social Priming on Social Presence with Intelligent Virtual Agents Book Chapter In: Beskow, Jonas; Peters, Christopher; Castellano, Ginevra; O'Sullivan, Carol; Leite, Iolanda; Kopp, Stefan (Ed.): Intelligent Virtual Agents: 17th International Conference, IVA 2017, Stockholm, Sweden, August 27-30, 2017, Proceedings, vol. 10498, pp. 87-100, Springer International Publishing, 2017. @inbook{Daher2017ab,
title = {Effects of Social Priming on Social Presence with Intelligent Virtual Agents},
author = {Salam Daher and Kangsoo Kim and Myungho Lee and Ryan Schubert and Gerd Bruder and Jeremy Bailenson and Greg Welch},
editor = {Jonas Beskow and Christopher Peters and Ginevra Castellano and Carol O'Sullivan and Iolanda Leite and Stefan Kopp},
url = {https://sreal.ucf.edu/wp-content/uploads/2017/12/Daher2017ab.pdf},
doi = {10.1007/978-3-319-67401-8_10},
year = {2017},
date = {2017-08-26},
booktitle = {Intelligent Virtual Agents: 17th International Conference, IVA 2017, Stockholm, Sweden, August 27-30, 2017, Proceedings},
volume = {10498},
pages = {87-100},
publisher = {Springer International Publishing},
keywords = {},
pubstate = {published},
tppubtype = {inbook}
}
|
 | Kangsoo Kim; Divine Maloney; Gerd Bruder; Jeremy Bailenson; Greg Welch The effects of virtual human's spatial and behavioral coherence with physical objects on social presence in AR Journal Article In: Computer Animation and Virtual Worlds, vol. 28, no. 3-4, pp. e1771-n/a, 2017. @article{Kim2017b,
title = {The effects of virtual human's spatial and behavioral coherence with physical objects on social presence in AR},
author = {Kangsoo Kim and Divine Maloney and Gerd Bruder and Jeremy Bailenson and Greg Welch},
url = {https://sreal.ucf.edu/wp-content/uploads/2017/12/Kim2017b.pdf},
doi = {10.1002/cav.1771},
year = {2017},
date = {2017-05-21},
journal = {Computer Animation and Virtual Worlds},
volume = {28},
number = {3-4},
pages = {e1771-n/a},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
|
 | Myungho Lee; Gerd Bruder; Greg Welch Effect of Vibrotactile Feedback through the Floor on Social Presence in an Immersive Virtual Environment Journal Article In: Journal of Vision: Abstract Issue 2017, vol. 17, no. 10, pp. 357, 2017. @article{Lee2017,
title = {Effect of Vibrotactile Feedback through the Floor on Social Presence in an Immersive Virtual Environment},
author = {Myungho Lee and Gerd Bruder and Greg Welch},
doi = {10.1167/17.10.357},
year = {2017},
date = {2017-05-01},
journal = {Journal of Vision: Abstract Issue 2017},
volume = {17},
number = {10},
pages = {357},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
|
| Ryan Schubert; Gerd Bruder; Greg Welch Mitigating Perceptual Error in Synthetic Animatronics using Visual Feature Flow Journal Article In: Journal of Vision: Abstract Issue 2017, vol. 17, no. 10, pp. 331, 2017. @article{Schubert2017,
title = {Mitigating Perceptual Error in Synthetic Animatronics using Visual Feature Flow},
author = {Ryan Schubert and Gerd Bruder and Greg Welch},
doi = {10.1167/17.10.331},
year = {2017},
date = {2017-05-01},
journal = {Journal of Vision: Abstract Issue 2017},
volume = {17},
number = {10},
pages = {331},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
|
 | Myungho Lee; Gerd Bruder; Greg Welch Exploring the Effect of Vibrotactile Feedback through the Floor on Social Presence in an Immersive Virtual Environment Proceedings Article In: Proceedings of IEEE Virtual Reality 2017, 2017. @inproceedings{Lee2017aa,
title = {Exploring the Effect of Vibrotactile Feedback through the Floor on Social Presence in an Immersive Virtual Environment},
author = {Myungho Lee and Gerd Bruder and Greg Welch},
url = {https://sreal.ucf.edu/wp-content/uploads/2017/02/Lee2017aa.pdf},
doi = {10.1109/VR.2017.7892237 },
year = {2017},
date = {2017-03-19},
booktitle = {Proceedings of IEEE Virtual Reality 2017},
keywords = {},
pubstate = {published},
tppubtype = {inproceedings}
}
|
![[POSTER] Coherence Changes Gaze Behavior in Virtual Human Interactions](https://sreal.ucf.edu/wp-content/uploads/2017/02/Skarbez2017aa.png) | Richard Skarbez; Gregory F. Welch; Frederick P. Brooks; Mary Whitton [POSTER] Coherence Changes Gaze Behavior in Virtual Human Interactions Proceedings Article In: 2017 IEEE Virtual Reality (VR), pp. 287-288, 2017. @inproceedings{Skarbez2017aa,
title = {[POSTER] Coherence Changes Gaze Behavior in Virtual Human Interactions},
author = {Richard Skarbez and Gregory F. Welch and Frederick P. Brooks and Mary Whitton},
url = {https://sreal.ucf.edu/wp-content/uploads/2017/02/Skarbez2017aa.pdf},
doi = {10.1109/VR.2017.7892289},
year = {2017},
date = {2017-03-19},
booktitle = {2017 IEEE Virtual Reality (VR)},
pages = {287-288},
keywords = {},
pubstate = {published},
tppubtype = {inproceedings}
}
|
![[POSTER] Can Social Presence be Contagious? Effects of Social Presence Priming on Interaction with Virtual Humans](https://sreal.ucf.edu/wp-content/uploads/2017/02/Daher2017aa.png) | Salam Daher; Kangsoo Kim; Myungho Lee; Gerd Bruder; Ryan Schubert; Jeremy Bailenson; Greg Welch [POSTER] Can Social Presence be Contagious? Effects of Social Presence Priming on Interaction with Virtual Humans Proceedings Article In: 3D User Interfaces (3DUI), 2017 IEEE Symposium on , 2017. @inproceedings{Daher2017aa,
title = {[POSTER] Can Social Presence be Contagious? Effects of Social Presence Priming on Interaction with Virtual Humans},
author = {Salam Daher and Kangsoo Kim and Myungho Lee and Gerd Bruder and Ryan Schubert and Jeremy Bailenson and Greg Welch},
url = {https://sreal.ucf.edu/wp-content/uploads/2017/02/Daher2017aa_red.pdf},
doi = {10.1109/3DUI.2017.7893341 },
year = {2017},
date = {2017-03-18},
booktitle = {3D User Interfaces (3DUI), 2017 IEEE Symposium on },
keywords = {},
pubstate = {published},
tppubtype = {inproceedings}
}
|
 | Kangsoo Kim; Arjun Nagendran; Jeremy N. Bailenson; Andrew Raij; Gerd Bruder; Myungho Lee; Ryan Schubert; Xin Yan; Gregory F. Welch A Large-Scale Study of Surrogate Physicality and Gesturing on Human–Surrogate Interactions in a Public Space Journal Article In: Frontiers in Robotics and AI, vol. 4, pp. 1-20, 2017, ISSN: 2296-9144. @article{Kim2017,
title = {A Large-Scale Study of Surrogate Physicality and Gesturing on Human–Surrogate Interactions in a Public Space},
author = {Kangsoo Kim and Arjun Nagendran and Jeremy N. Bailenson and Andrew Raij and Gerd Bruder and Myungho Lee and Ryan Schubert and Xin Yan and Gregory F. Welch},
url = {http://journal.frontiersin.org/article/10.3389/frobt.2017.00032
https://sreal.ucf.edu/wp-content/uploads/2017/07/Kim2017.pdf},
doi = {10.3389/frobt.2017.00032},
issn = {2296-9144},
year = {2017},
date = {2017-01-01},
journal = {Frontiers in Robotics and AI},
volume = {4},
pages = {1-20},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
|
 | Kangsoo Kim; Gerd Bruder; Greg Welch Exploring the Effects of Observed Physicality Conflicts on Real-virtual Human Interaction in Augmented Reality Proceedings Article In: Proceedings of the 23rd ACM Symposium on Virtual Reality Software and Technology, pp. 31:1–31:7, ACM, Gothenburg, Sweden, 2017, ISBN: 978-1-4503-5548-3. @inproceedings{Kim2017a,
title = {Exploring the Effects of Observed Physicality Conflicts on Real-virtual Human Interaction in Augmented Reality},
author = { Kangsoo Kim and Gerd Bruder and Greg Welch},
url = {http://doi.acm.org/10.1145/3139131.3139151
https://sreal.ucf.edu/wp-content/uploads/2017/12/Kim2017a.pdf},
doi = {10.1145/3139131.3139151},
isbn = {978-1-4503-5548-3},
year = {2017},
date = {2017-01-01},
booktitle = {Proceedings of the 23rd ACM Symposium on Virtual Reality Software and Technology},
pages = {31:1--31:7},
publisher = {ACM},
address = {Gothenburg, Sweden},
series = {VRST '17},
keywords = {},
pubstate = {published},
tppubtype = {inproceedings}
}
|
2016
|
 | Kangsoo Kim; Gerd Bruder; Divine Maloney; Greg Welch The influence of real human personality on social presence with a virtual human in augmented reality. Proceedings Article In: Reiners, Dirk; Iwai, Daisuke; Steinicke, Frank (Ed.): ICAT‐EGVE 2016 ‐ International Conference on Artificial Reality and Telexistence and
Eurographics Symposium on Virtual Environments, The Eurographics Association Little Rock, AR, USA, 2016. @inproceedings{kim2016ab,
title = {The influence of real human personality on social presence with a virtual human in augmented reality.},
author = {Kangsoo Kim and Gerd Bruder and Divine Maloney and Greg Welch},
editor = {Dirk Reiners and Daisuke Iwai and Frank Steinicke},
url = {https://sreal.ucf.edu/wp-content/uploads/2017/02/Kim2016ab.pdf},
year = {2016},
date = {2016-12-07},
booktitle = {ICAT‐EGVE 2016 ‐ International Conference on Artificial Reality and Telexistence and
Eurographics Symposium on Virtual Environments},
address = {Little Rock, AR, USA},
organization = {The Eurographics Association},
keywords = {},
pubstate = {published},
tppubtype = {inproceedings}
}
|
 | Ryan Schubert; Greg Welch; Salam Daher; Andrew Raij HuSIS: A Dedicated Space for Studying Human Interactions Journal Article In: IEEE Computer Graphics and Applications, vol. 36, no. 6, 2016. @article{Schubert2016aa,
title = {HuSIS: A Dedicated Space for Studying Human Interactions},
author = {Ryan Schubert and Greg Welch and Salam Daher and Andrew Raij},
url = {https://sreal.ucf.edu/wp-content/uploads/2017/02/Schubert2016aa.pdf},
year = {2016},
date = {2016-11-01},
journal = {IEEE Computer Graphics and Applications},
volume = {36},
number = {6},
publisher = {IEEE Computer Society Press},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
|
![[POSTER] Exploring the Impact of Environmental Effects on Social Presence with a Virtual Human](https://sreal.ucf.edu/wp-content/uploads/2017/02/Kim2016aa.png) | Kangsoo Kim; Ryan Schubert; Greg Welch [POSTER] Exploring the Impact of Environmental Effects on Social Presence with a Virtual Human Proceedings Article In: Proceedings of the 16th International Conference on Intelligent Virtual Agents (IVA 2016), pp. 470–474, Los Angeles, CA, 2016. @inproceedings{Kim2016aa,
title = {[POSTER] Exploring the Impact of Environmental Effects on Social Presence with a Virtual Human},
author = {Kangsoo Kim and Ryan Schubert and Greg Welch},
url = {https://sreal.ucf.edu/wp-content/uploads/2017/02/Kim2016aa.pdf},
year = {2016},
date = {2016-09-01},
booktitle = {Proceedings of the 16th International Conference on Intelligent Virtual Agents (IVA 2016)},
volume = {10011},
pages = {470--474},
address = {Los Angeles, CA},
keywords = {},
pubstate = {published},
tppubtype = {inproceedings}
}
|
 | Gregory Welch Highlights of ``Immersive Sciences'' Research in the U.S.A.: Augmented/Virtual Reality and Human Surrogates Journal Article In: Journal of the Virtual Reality Society of Japan, vol. 21, no. 2, pp. 129–137, 2016. @article{Welch2016aa,
title = {Highlights of ``Immersive Sciences'' Research in the U.S.A.: Augmented/Virtual Reality and Human Surrogates},
author = {Gregory Welch},
url = {https://sreal.ucf.edu/wp-content/uploads/2017/02/Welch2016aa_red.pdf},
year = {2016},
date = {2016-06-01},
journal = {Journal of the Virtual Reality Society of Japan},
volume = {21},
number = {2},
pages = {129--137},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
|
![[POSTER] Humanikins: Humanity Transfer to Physical Manikins](https://sreal.ucf.edu/wp-content/uploads/2018/08/humanikin.png) | Salam Daher; Greg Welch [POSTER] Humanikins: Humanity Transfer to Physical Manikins Conference 22nd Medicine Meets Virtual Reality (NextMed / MMVR), Los Angeles, CA, USA, 2016. @conference{Daher2016,
title = {[POSTER] Humanikins: Humanity Transfer to Physical Manikins},
author = {Salam Daher and Greg Welch},
url = {https://sreal.ucf.edu/daher_s/},
year = {2016},
date = {2016-04-07},
booktitle = {22nd Medicine Meets Virtual Reality (NextMed / MMVR)},
address = {Los Angeles, CA, USA},
keywords = {},
pubstate = {published},
tppubtype = {conference}
}
|
![[POSTER] Interactive Rear‐Projection Physical‐Virtual Patient Simulators](https://sreal.ucf.edu/wp-content/uploads/2018/08/mmvr_greg-1024x420.png) | Greg Welch; Salam Daher; Jason Hochreiter; Laura Gonzalez [POSTER] Interactive Rear‐Projection Physical‐Virtual Patient Simulators Conference 22nd Medicine Meets Virtual Reality (NextMed / MMVR), Los Angeles, CA, USA, 2016. @conference{Welch2016ab,
title = {[POSTER] Interactive Rear‐Projection Physical‐Virtual Patient Simulators},
author = {Greg Welch and Salam Daher and Jason Hochreiter and Laura Gonzalez},
url = {https://sreal.ucf.edu/welch_gf-20160121/},
year = {2016},
date = {2016-04-07},
booktitle = {22nd Medicine Meets Virtual Reality (NextMed / MMVR)},
address = {Los Angeles, CA, USA},
keywords = {},
pubstate = {published},
tppubtype = {conference}
}
|
![[POSTER] Exploring Social Presence Transfer in Real-Virtual Human Interaction](https://sreal.ucf.edu/wp-content/uploads/2017/02/Daher2016aa.png) | Salam Daher; Kangsoo Kim; Myungho Lee; Andrew Raij; Ryan Schubert; Jeremy Bailenson; Greg Welch [POSTER] Exploring Social Presence Transfer in Real-Virtual Human Interaction Conference Proceedings of IEEE Virtual Reality 2016, Greenville, SC, USA, 2016. @conference{Daher2016aa,
title = {[POSTER] Exploring Social Presence Transfer in Real-Virtual Human Interaction},
author = {Salam Daher and Kangsoo Kim and Myungho Lee and Andrew Raij and Ryan Schubert and Jeremy Bailenson and Greg Welch},
url = {https://sreal.ucf.edu/wp-content/uploads/2017/02/Daher2016aa.pdf},
year = {2016},
date = {2016-03-01},
booktitle = {Proceedings of IEEE Virtual Reality 2016},
address = {Greenville, SC, USA},
keywords = {},
pubstate = {published},
tppubtype = {conference}
}
|
 | Myungho Lee; Kangsoo Kim; Salam Daher; Andrew Raij; Ryan Schubert; Jeremy Bailenson; Gregory Welch The wobbly table: Increased social presence via subtle incidental movement of a real-virtual table Proceedings Article In: 2016 IEEE Virtual Reality (VR), pp. 11-17, 2016. @inproceedings{Lee2016,
title = {The wobbly table: Increased social presence via subtle incidental movement of a real-virtual table},
author = {Myungho Lee and Kangsoo Kim and Salam Daher and Andrew Raij and Ryan Schubert and Jeremy Bailenson and Gregory Welch},
url = {https://sreal.ucf.edu/wp-content/uploads/2017/02/Lee2016.pdf},
doi = {10.1109/VR.2016.7504683},
year = {2016},
date = {2016-03-01},
booktitle = {2016 IEEE Virtual Reality (VR)},
pages = {11-17},
keywords = {},
pubstate = {published},
tppubtype = {inproceedings}
}
|
