Stefanie Zollmann, Our people, Department of Computer Science

Owheo Building, Room 251
Tel +64 3 479 8587
Email stefanie.zollmann@otago.ac.nz

Research Interests

My main research interest is Visual Computing, a field described as the intersection between traditional Computer Graphics, Computer Vision, Visualisation and Human-Computer Interaction. Within this field, I am particularly interested in methods for content capturing for immersive environments and visualisation techniques where digital data needs to be visualised in its spatial context. This kind of visualisation is often referred to as Situated Visualisation and has many application areas, including the visualisation of geospatial data, sports broadcasting, construction site visualisation, archeological visualisation, medical visualisation, and personal information systems. Situated visualisation raises many interesting research questions for Computer Vision research (such as live 3D reconstruction, image analysis and vision-based tracking), for Visualisation and Computer Graphics research (such as seamless integration of information and information presentation) as well as for Human-Computer-Interaction (such as intuitive viewpoint control).

Before joining the Department of Computer Science in September 2016, I worked as a senior developer at Animation Research Limited (ARL) in Dunedin. At ARL I was doing industrial research and development in the field of sports visualisation, post-production, and geo-data visualisation, in co-operation with several renowned companies and institutions. Before moving to New Zealand, I worked as a research assistant at Graz University of Technology in Austria, from where I also obtained my PhD researching visualisation techniques for GIS data and temporal data in an outdoor augmented reality system.

For more information, please see the Visual Computing Otago research group website:

Visual Computing Otago

Teaching

COSC 342 Computer Graphics
COSC 326 Effective Programming
COSC 241 Programming and Problem Solving
COSC 450 Computer Vision and Graphics
COSC 212 Web Application Development

Professional Roles

Associate Editor IEEE Transactions of Computer Graphics and Visualization
Associate Editor Elsevier Computer & Graphics Journal
IEEE International Symposium on Mixed and Augmented Reality (Program Chair, Program Committee, Poster Chair)
IEEE Virtual Reality (Program Committee)
Pacific Graphics Conference Paper Chair

Current Research

Marsden – Fast Start: “Interactive 3D computational videography”
MBIE Endeavour Fund – Smart Ideas: “Augmented spectator sports experience – Situated visualisation for enriching sports experience for on-site spectators”
UORG: "360° Videos for Immersive Teaching Online and in the Classroom for Secondary and Tertiary Education: the new frontier”

Student supervision

Wei Hong Lo, PhD student, "Situated Visualisation to Enrich Sports Experience for On-site Spectators"
Anthony Dickson, PhD student,"3D from single view videos"
Shazia Gul, PhD student, " Localization and Tracking for Augmented Reality in Dynamic large scale environments"
Lewis Baker, PhD graduate, "Augmented Reality for On-site Visualisation of Sports Data"
Patrick Skinner, Master's graduate, "Localisation for Augmented Reality"

Publications

Lo, W. H., Gul, S., Langlotz, T., Regenbrecht, H., & Zollmann, S. (2024). Hybrid XRSpectator: A hybrid tabletop XR sports spectating experience. Proceedings of the IEEE Ccnference on Virtual Reality and 3D User Interfaces Abstracts and Workshops (VRW). (pp. 1172-1173). IEEE. doi: 10.1109/VRW62533.2024.00380 Conference Contribution - Published proceedings: Abstract

Asija, S., Du, E., Nguyen, N., Zollmann, S., & Ventura, J. (2024). 3D pano inpainting: Building a VR environment from a single input panorama. Proceedings of the IEEE Ccnference on Virtual Reality and 3D User Interfaces Abstracts and Workshops (VRW). (pp. 1019-1020). IEEE. doi: 10.1109/VRW62533.2024.00306 Conference Contribution - Published proceedings: Abstract

Davis, L. S., Finkler, W., Lo, W. H., Rabbidge, M., Zhu, L., & Zollmann, S. (2024). 360 storytelling for immersive teaching online and in the classroom for secondary and tertiary education. Proceedings of the IEEE Ccnference on Virtual Reality and 3D User Interfaces Abstracts and Workshops (VRW). (pp. 935-936). IEEE. doi: 10.1109/VRW62533.2024.00264 Conference Contribution - Published proceedings: Abstract

Itoh, Y., Popescu, V., Peck, T., & Zollmann, S. (2024). IEEE VR 2024 message from the program chairs and guest editors. IEEE Transactions on Visualization & Computer Graphics, 30(5), ix-x. doi: 10.1109/TVCG.2024.3369810 Journal - Research Other

Baker, L., Ventura, J., Langlotz, T., Gul, S., Mills, S., & Zollmann, S. (2024). Localization and tracking of stationary users for augmented reality. Visual Computer, 40, 227-244. doi: 10.1007/s00371-023-02777-2 Journal - Research Article

2024

Journal - Research Article

Journal - Research Other

Conference Contribution - Published proceedings: Abstract

2023

Journal - Research Article

Lo, W. H., Regenbrecht, H., & Zollmann, S. (2023). Sports visualization in the wild: The impact of technical factors on user experience in Augmented Reality sports spectating. IEEE Computer Graphics & Applications, 1-11. Advance online publication. doi: 10.1109/MCG.2023.3308958

Zhang, F., Zhao, J., Zhang, Y., & Zollmann, S. (2023). A survey on 360° images and videos in mixed reality: Algorithms and applications. Journal of Computer Science & Technology, 38(3), 473-491. doi: 10.1007/s11390-023-3210-1

Zhang, S.-H., Chen, C., & Zollmann, S. (2023). One-step out-of-place resetting for redirected walking in VR. IEEE Transactions on Visualization & Computer Graphics, 29(7), 3327-3339. doi: 10.1109/TVCG.2022.3158609

Wang, C., Zhang, S.-H., Zhang, Y., Zollmann, S., & Hu, S.-M. (2023). On rotation gains within and beyond perceptual limitations for seated VR. IEEE Transactions on Visualization & Computer Graphics, 29(7), 3380-3391. doi: 10.1109/TVCG.2022.3159799

Conference Contribution - Published proceedings: Full paper

Gul, S., Lo, W. H., Mills, S., & Zollmann, S. (2023). Benchmarking localization for augmented reality in large scale environments. In D. Bailey, A. Punchihewa & A. Paturkar (Eds.), Proceedings of the 38th International Conference on Image and Vision Computing New Zealand (IVCNZ). IEEE. doi: 10.1109/IVCNZ61134.2023.10344159

Schieber, H., Schmid, F., Hassan, M. U., Zollmann, S., & Roth, D. (2023). A modular approach for 3D reconstruction with point cloud overlay. Proceedings of the IEEE International Symposium on Mixed and Augmented Reality Adjunct (ISMAR-Adjunct). (pp. 609-610). IEEE. doi: 10.1109/ISMAR-Adjunct60411.2023.00129

Hasselman, T., Lo, W. H., Langlotz, T., & Zollmann, S. (2023). ARephotography: Revisiting historical photographs using augmented reality. Proceedings of the CHI Conference on Human Factors in Computing Systems. LBW040. New York, NY: ACM. doi: 10.1145/3544549.3585646

2022

Chapter in Book - Research

Zollmann, S., Langlotz, T., Regenbrecht, H., Button, C., Lo, W. H., & Mills, S. (2022). Augmented reality for sports spectating and coaching. In V. Tzankova & M. Filimowicz (Eds.), Interactive sports technologies: Performance, participation, safety. (pp. 96-111). New York, NY: Routledge. doi: 10.4324/9781003205111-7

Journal - Research Article

Lo, W. H., Zollmann, S., & Regenbrecht, H. (2022). Stats on-site: Sports spectator experience through situated visualizations. Computers & Graphics, 102, 99-111. doi: 10.1016/j.cag.2021.12.009

Conference Contribution - Published proceedings: Full paper

Dickson, A., Shanks, J., Ventura, J., Knott, A., & Zollmann, S. (2022). VRVideos: A flexible pipeline for virtual reality video creation. Proceedings of the IEEE International Conference on Artificial Intelligence and Virtual Reality (AIVR). (pp. 199-202). IEEE. doi: 10.1109/AIVR56993.2022.00039

Sun, H., & Zollmann, S. (2022). Towards casually captured 6DoF VR videos. Proceedings of the IEEE International Conference on Artificial Intelligence and Virtual Reality (AIVR). (pp. 176-179). IEEE. doi: 10.1109/AIVR56993.2022.00035

Lo, W. H., Regenbrecht, H., & Zollmann, S. (2022). Flexible XR prototyping: A sports spectating example. IEEE International Symposium on Mixed and Augmented Reality Adjunct (ISMAR-Adjunct). (pp. 167-170). IEEE. doi: 10.1109/ISMAR-Adjunct57072.2022.00038

Waidhofer, J., Gadgil, R., Dickson, A., Zollmann, S., & Ventura, J. (2022). PanoSynthVR: Toward light-weight 360-degree view synthesis from a single panoramic input. Proceedings of the IEEE International Symposium on Mixed and Augmented Reality (ISMAR). (pp. 584-592). IEEE. doi: 10.1109/ISMAR55827.2022.00075

Lo, W. H., Regenbrecht, H., Ens, B., & Zollmann, S. (2022). A context-aware interface for immersive sports spectating. IEEE International Symposium on Mixed and Augmented Reality Adjunct (ISMAR-Adjunct). (pp. 605-610). IEEE. doi: 10.1109/ISMAR-Adjunct57072.2022.00125

Serrano, M., Satriadi, K. A., Yang, Y., Ens, B., Prouzeau, A., & Zollmann, S. (2022). Immersive analytics spaces and surfaces [Workshop]. In C. Anslow & J. Kay (Eds.), Companion Proceedings of the Conference on Interactive Surfaces and Spaces (ISS). (pp. 68-71). New York, NY: ACM. doi: 10.1145/3532104.3571471

Conference Contribution - Verbal presentation and other Conference outputs

Zollmann, S. (2022, November). eXtending Realities: Using eXtended Reality to create interactive spaces in challenging environments. Keynote presentation at the Conference on Interactive Surfaces and Spaces (ISS), [Hybrid].

2021

Journal - Research Article

Itoh, Y., Langlotz, T., Zollmann, S., Iwai, D., Kiyoshi, K., & Amano, T. (2021). Computational phase-modulated eyeglasses. IEEE Transactions on Visualization & Computer Graphics, 27(3), 1916-1928. doi: 10.1109/TVCG.2019.2947038

Zollmann, S., Langlotz, T., Grasset, R., Lo, W. H., Mori, S., & Regenbrecht, H. (2021). Visualization techniques in augmented reality: A taxonomy, methods and patterns. IEEE Transactions on Visualization & Computer Graphics, 27(9), 3808-3825. doi: 10.1109/TVCG.2020.2986247

Conference Contribution - Published proceedings: Full paper

Gul, S., Baker, L., Boult, R., Mills, S., & Zollmann, S. (2021). Expert sample consensus applied to camera localization for AR sports spectators. Proceedings of the 36th International Conference on Image and Vision Computing New Zealand (IVCNZ). IEEE. doi: 10.1109/IVCNZ54163.2021.9653307

Lo, W. H., Zollmann, S., & Regenbrecht, H. (2021). From off-site to on-site: A flexible framework for XR prototyping in sports spectating. Proceedings of the 36th International Conference on Image and Vision Computing New Zealand (IVCNZ). IEEE. doi: 10.1109/IVCNZ54163.2021.9653277

Dickson, A., Knott, A., & Zollmann, S. (2021). Benchmarking monocular depth estimation models for VR content creation from a user perspective. Proceedings of the 36th International Conference on Image and Vision Computing New Zealand (IVCNZ). IEEE. doi: 10.1109/IVCNZ54163.2021.9653344

Lo, W. H., Regenbrecht, H., & Zollmann, S. (2021). XRSpectator: Immersive, augmented sports spectating. In Y. Itoh, K. Takashima, P. Punpongsanon, M. Sra, K. Fujita, S. Yoshida & T. Piumsomboon (Eds.), Proceedings of the 27th ACM Symposium on Virtual Reality Software & Technology (VRST). New York, NY: Association for Computing Machinery. doi: 10.1145/3489849.3489930

Lo, W. H., Regenbrecht, H., & Zollmann, S. (2021). Technical factors affecting augmented reality user experiences in sports spectating. In Y. Itoh, K. Takashima, P. Punpongsanon, M. Sra, K. Fujita, S. Yoshida & T. Piumsomboon (Eds.), Proceedings of the 27th ACM Symposium on Virtual Reality Software & Technology (VRST). New York, NY: Association for Computing Machinery. doi: 10.1145/3489849.3489906

Conference Contribution - Published proceedings: Abstract

Gadgil, R., John, R., Zollmann, S., & Ventura, J. (2021). PanoSynthVR: View synthesis from a single input panorama with multi-cylinder images [Extended abstract]. Proceedings of the Special Interest Group on Computer Graphics and Interactive Techniques (SIGGRAPH) Conference. New York, NY: ACM. doi: 10.1145/3450618.3469144

2020

Journal - Professional & Other Non-Research Articles

Hu, S.-M., Kalkofen, D., Ventura, J., & Zollmann, S. (2020). Message from the ISMAR 2020 science and technology program chairs and TVCG guest editors. IEEE Transactions on Visualization & Computer Graphics, 26(12), 3387-3388. doi: 10.1109/TVCG.2020.3021812

Conference Contribution - Published proceedings: Full paper

Baker, L., Ventura, J., Zollmann, S., Mills, S., & Langlotz, T. (2020). SPLAT: Spherical Localization and Tracking in Large Spaces. Proceedings of the IEEE Conference on Virtual Reality and 3D User Interfaces. (pp. 809-817). IEEE. doi: 10.1109/VR46266.2020.00105

Baker, L., Mills, S., Zollmann, S., & Ventura, J. (2020). CasualStereo: Casual capture of stereo panoramas with spherical structure-from-motion. Proceedings of the IEEE Conference on Virtual Reality and 3D User Interfaces. (pp. 782-790). IEEE. doi: 10.1109/VR46266.2020.1581313146787

Skinner, P., & Zollmann, S. (2020). Localisation for augmented reality at sport events. Proceedings of the 2019 International Conference on Image and Vision Computing New Zealand (IVCNZ). IEEE. doi: 10.1109/IVCNZ48456.2019.8961006

Conference Contribution - Published proceedings: Abstract

Zollmann, S., Dickson, A., & Ventura, J. (2020). CasualVRVideos: VR videos from casual stationary videos [Extended abstract]. In R. J. Teather (Ed.), Proceedings of the 26th ACM Symposium on Virtual Reality Software and Technology. 48. New York, NY: ACM. doi: 10.1145/3385956.3422119

2019

Conference Contribution - Published proceedings: Full paper

Zollmann, S., Langlotz, T., Loos, M., Lo, W. H., & Baker, L. (2019). ARSpectator: Exploring augmented reality for sport events. Special Interest Group on Computer Graphics (SIGGRAPH) Asia Technical Briefs: SA '19. (pp. 75-78). New York, NY: ACM. doi: 10.1145/3355088.3365162

Baker, L., Zollmann, S., Mills, S., & Langlotz, T. (2019). SoftPOSIT for augmented reality in complex environments: Limitations and challenges. Proceedings of the 2018 International Conference on Image and Vision Computing New Zealand (IVCNZ). IEEE. doi: 10.1109/IVCNZ.2018.8634761

Conference Contribution - Published proceedings: Abstract

Lo, W. H., Zollmann, S., Regenbrecht, H., & Loos, M. (2019). From lab to field: Demonstrating mixed reality prototypes for augmented sports experiences [Extended abstract]. Proceedings of the 17th ACM SIGGRAPH International Conference on Virtual-Reality Continuum and its Applications in Industry (VRCAI). 62. New York, NY: ACM. doi: 10.1145/3359997.3365728

Baker, L., Zollmann, S., & Ventura, J. (2019). Spherical structure-from-motion for casual capture of stereo panoramas [Extended abstract]. Proceedings of the 26th Conference on Virtual Reality and 3D User Interfaces. (pp. 846-847). IEEE. doi: 10.1109/VR.2019.8797794

2018

Journal - Research Article

Jackson, J. C., Jong, J., Bilkey, D., Whitehouse, H., Zollmann, S., McNaughton, C., & Halberstadt, J. (2018). Synchrony and physiological arousal Increase cohesion and cooperation in large naturalistic groups. Scientific Reports, 8, 127. doi: 10.1038/s41598-017-18023-4

Conference Contribution - Published proceedings: Full paper

Nimcharoen, C., Zollmann, S., Collins, J., & Regenbrecht, H. (2018). Is that me?: Embodiment and body perception with an augmented reality mirror. Proceedings of the IEEE International Symposium on Mixed and Augmented Reality Adjunct (ISMAR-Adjunct). (pp. 158-163). IEEE. doi: 10.1109/ISMAR-Adjunct.2018.00057

Skinner, P., Ventura, J., & Zollmann, S. (2018). Indirect augmented reality browser for GIS data. Proceedings of the IEEE International Symposium on Mixed and Augmented Reality Adjunct (ISMAR-Adjunct). (pp. 145-150). IEEE. doi: 10.1109/ISMAR-Adjunct.2018.00054

Langlotz, T., Sutton, J., Zollmann, S., Itoh, Y., & Regenbrecht, H. (2018). ChromaGlasses: Computational glasses for compensating colour blindness. Proceedings of the CHI Conference on Human Factors in Computing Systems. 390. Montreal, Canada: ACM. doi: 10.1145/3173574.3173964

Conference Contribution - Published proceedings: Abstract

Langlotz, T., Tappeiner, E., Zollmann, S., Ventura, J., & Regenbrecht, H. (2018). Urban pointing: Browsing situated media using accurate pointing interfaces [Extended abstract]. Proceedings of the Computer Human Interaction (CHI) Conference on Human Factors in Computing Systems. LBW604. ACM: New York, NY. doi: 10.1145/3170427.3188565

2017

Journal - Research Article

Grubert, J., Langlotz, T., Zollmann, S., & Regenbrecht, H. (2017). Towards pervasive augmented reality: Context-awareness in augmented reality. IEEE Transactions on Visualization & Computer Graphics, 23(6), 1706-1724. doi: 10.1109/TVCG.2016.2543720

Conference Contribution - Published proceedings: Full paper

Zollmann, S., Poglitsch, C., & Ventura, J. (2017). VISGIS: Dynamic situated visualization for geographic information systems. In D. Bailey, G. Sen Gupta & S. Marsland (Eds.), Proceedings of the 2016 International Conference on Image and Vision Computing New Zealand (IVCNZ). (pp. 146-151). IEEE. doi: 10.1109/ivcnz.2016.7804440

2016

Journal - Research Article

Halberstadt, J., Jackson, J. C., Bilkey, D., Jong, J., Whitehouse, H., McNaughton, C., & Zollmann, S. (2016). Incipient social groups: An analysis via in-vivo behavioral tracking. PLoS ONE, 11(3), e0149880. doi: 10.1371/journal.pone.0149880

2014

Journal - Research Article

Zollmann, S., Hoppe, C., Kluckner, S., Poglitsch, C., Bischof, H., & Reitmayr, G. (2014). Augmented reality for construction site monitoring and documentation. Proceedings of the IEEE, 102(2), 137-154. doi: 10.1109/JPROC.2013.2294314

Zollmann, S., Hoppe, C., Langlotz, T., & Reitmayr, G. (2014). FlyAR: Augmented Reality supported micro aerial vehicle navigation. IEEE Transactions on Visualization & Computer Graphics, 20(4), 560-568. doi: 10.1109/TVCG.2014.24

Conference Contribution - Published proceedings: Full paper

Zollmann, S., Grasset, R., Reitmayr, G., & Langlotz, T. (2014). Image-based X-ray visualization techniques for spatial understanding in outdoor augmented reality. In T. Robertson, K. O'Hara, G. Wadley, L. Loke & T. Leong (Eds.), Proceedings of the 26th Australian Computer-Human Interaction (OzCHI) Conference on Designing Futures: the Future of Design. (pp. 194-203). New York: ACM. doi: 10.1145/2686612.2686642

2013

Journal - Research Article

Schall, G., Zollmann, S., & Reitmayr, G. (2013). Smart Vidente: Advances in mobile augmented reality for interactive visualization of underground infrastructure. Personal & Ubiquitous Computing, 17(7), 1533-1549. doi: 10.1007/s00779-012-0599-x

Conference Contribution - Published proceedings: Full paper

Kalkofen, D., Veas, E., Zollmann, S., Steinberger, M., & Schmalstieg, D. (2013). Adaptive ghosted views for augmented reality. Proceedings of the International Symposium on Mixed and Augmented Reality (ISMAR). (pp. 1-9). IEEE. doi: 10.1109/ISMAR.2013.6671758

Langlotz, T., Regenbrecht, H., Zollmann, S., & Schmalstieg, D. (2013). Audio stickies: Visually-guided spatial audio annotations on a mobile augmented reality platform. In H. Shen, R. Smith, J. Paay, P. Calder & T. Wyeld (Eds.), Proceedings of the 25th Australian Computer-Human Interaction Conference: Augmentation, Application, Innovation, Collaboration (OzCHI). (pp. 545-554). New York: ACM. doi: 10.1145/2541016.2541022

Awarded Doctoral Degree

Zollmann, S. (2013). Visualization in outdoor augmented reality (PhD). Graz University of Technology, Graz, Austria. 185p.

2012

Chapter in Book - Research

Zollmann, S., Schall, G., Junghanns, S., & Reitmayr, G. (2012). Comprehensible and interactive visualizations of GIS data in augmented reality. In G. Bebis, R. Boyle, B. Parvin, D. Koracin, C. Fowlkes, S. Wang, … M. Papka (Eds.), Advances in visual computing: 8th International Symposium ISVC, revised selected papers, part 1: Lecture notes in computer science (Vol. 7431). (pp. 675-685). Berlin, Germany: Speinger. doi: 10.1007/978-3-642-33179-4_64

Journal - Research Article

Langlotz, T., Mooslechner, S., Zollmann, S., Degendorfer, C., Reitmayr, G., & Schmalstieg, D. (2012). Sketching up the world: In situ authoring for mobile augmented reality. Personal & Ubiquitous Computing, 16(6), 623-630. doi: 10.1007/s00779-011-0430-0

Conference Contribution - Published proceedings: Full paper

Zollmann, S., Kalkofen, D., Hoppe, C., Kluckner, S., Bischof, H., & Reitmayr, G. (2012). Interactive 4D overview and detail visualization in augmented reality. Proceedings of the International Symposium on Mixed and Augmented Reality (ISMAR). (pp. 167-176). IEEE. doi: 10.1109/ISMAR.2012.6402554

Zollmann, S., & Reitmayr, G. (2012). Dense depth maps from sparse models and image coherence for augmented reality. Proceedings of the 18th ACM Symposium on Virtual Reality Software and Technology (VRST). (pp. 53-60). New York: ACM. doi: 10.1145/2407336.2407347

Conference Contribution - Verbal presentation and other Conference outputs

Hoppe, C., Wendel, A., Zollmann, S., Pirker, K., Irschara, A., Bischof, H., & Kluckner, S. (2012, February). Photogrammetric camera network design for micro aerial vehicles. Verbal presentation at the 17th Computer Vision Winter Workshop (CVWW), Mala Nedeja, Slovenia.

2010

Conference Contribution - Published proceedings: Full paper

Zollmann, S., Kalkofen, D., Mendez, E., & Reitmayr, G. (2010). Image-based ghostings for single layer occlusions in augmented reality. Proceedings of the 9th IEEE International Symposium on Mixed and Augmented Reality (ISMAR). (pp. 19-26). IEEE. doi: 10.1109/ISMAR.2010.5643546

2009

Conference Contribution - Published proceedings: Abstract

Zollmann, S., & Langlotz, T. (2009). Spatially augmented tape drawing. Proceedings of the IEEE Symposium on 3D User Interfaces (3DUI). (pp. 147-148). IEEE. doi: 10.1109/3DUI.2009.4811229

2007

Journal - Research Article

Zollmann, S., Langlotz, T., & Bimber, O. (2007). Passive-active geometric calibration for view-dependent projections onto arbitrary surfaces. Journal of Virtual Reality & Broadcasting, 4.

2005

Journal - Research Article

Bimber, O., Coriand, F., Kleppe, A., Bruns, E., Zollmann, S., & Langlotz, T. (2005). Superimposing pictorial artwork with projected imagery. IEEE MultiMedia, 12(1), 16-26. doi: 10.1109/MMUL.2005.9

2004

Conference Contribution - Published proceedings: Abstract

Bimber, O., Coriand, F., Kleppe, A., Bruns, E., Zollmann, S., & Langlotz, T. (2004). Superimposing pictorial artwork with projected imagery. In R. Barzel (Ed.), Proceedings of the SIGGRAPH Sketches Conference. (pp. 78). New York: ACM. doi: 10.1145/1186223.1186321