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Category Archives: 3D Sketch Maps

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CHI 2025: two papers accepted

We are pleased to share that two of our papers have been accepted for the ACM (Association of Computing Machinery) CHI conference on Human Factors in Computing Systems  2025, the most important international conference in the field of human-computer interaction. CHI 2025 took place in Yokohama, Japan, from 26 April to 1 May 2025.

Adrian Sarbach presented his paper with the title “Next-Generation Navigation: Evaluating the Impact of Augmented Reality on Situation Awareness in General Aviation Cockpits“, written together with Thierry Weber. This paper presents findings on how AR technology (tested with the Microsoft HoloLens 2) can help pilots obtain and keep a higher level of situation awareness in the aircraft cockpit.

Tianyi Xiao presented his paper with the title “Sketch2Terrain: AI-Driven Real-Time Terrain Sketch Mapping in Augmented Reality“, written together with Yizi Chen, Sailin Zhong, Peter Kiefer, Jakub Krukar, Kevin Gonyop Kim, Lorenz Hurni, Angela Schwering, and Martin Raubal. This paper developed a generative AI model that can help novice mappers externalize complex terrain memory in XR.

Please refer to our paper if you are interested in aviation and 3D sketch mapping in VR/AR technologies!

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Here again papers and their respective abstracts


Next-Generation Navigation: Evaluating the Impact of Augmented Reality on Situation Awareness in General Aviation Cockpits

Flights in general aviation require pilots to navigate using 2D maps, which splits their attention between the cockpit and the outside environment, reducing situation awareness. Augmented reality (AR) can bridge the gap between the inside and outside world, and thus can resolve the issue of attention switches. In a mixed methods simulator study with 19 pilots, we tested an AR application that integrated invisible and hard-to-see aeronautical data and navigation features with the visible world. Results show that the AR tool enhances and accelerates orientation, and can result in flight trajectories being more accurate with AR than without AR. Situation awareness, measured with a subjective self-rating, was not increased with AR support. Participants voiced concerns about AR content occluding outside features, while positive feedback included use cases in unfamiliar areas and in low visibility, as well as highlighting of hazards.


Sketch2Terrain: AI-Driven Real-Time Terrain Sketch Mapping in Augmented Reality

Dataset, Open-sourced project page

Sketch mapping is an effective technique to externalize and communicate spatial information. However, it has been limited to 2D mediums, making it difficult to represent 3D information, particularly for terrains with elevation changes. We present Sketch2Terrain, an intuitive generative-3D-sketch-mapping system combining freehand sketching with generative Artificial Intelligence that radically changes sketch map creation and representation using Augmented Reality. Sketch2Terrain empowers non-experts to create unambiguous sketch maps of natural environments and provides a homogeneous interface for researchers to collect data and conduct experiments. A between-subject study (N=36) revealed that generative-3D-sketch-mapping improved efficiency by 38.4%, terrain-topology accuracy by 12.5%, and landmark accuracy by up to 12.1%, with only a 4.7% trade-off in terrain-elevation accuracy compared to freehand 3D-sketch-mapping. Additionally, generative-3D-sketch-mapping reduced perceived strain by 60.5% and stress by 39.5% over 2D-sketch-mapping. These findings underscore potential applications of generative-3D-sketch-mapping for in-depth understanding and accurate representation of vertically complex environments. The implementation is publicly available.


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New Publication at COSIT 2024: Exploring Perceived Feasibility and Use Cases of 3D Sketch Mapping

Can you sketch in 3D?

Within the 3D Sketch Maps project, our former colleague, Prof. Kevin Gonyop Kim, and the geoGAZElab team investigated the perceived feasibility of 3D sketching in VR with a particular focus on the sketch mapping purpose. We interviewed 27 people from 3 domains and discovered that 3D sketching can help represent 3D information more effectively and complement the 2D approach. The paper was presented at the COSIT 2024 conference in September in Quebec City, Canada, by Prof. Martin Raubal and received attention and various questions. The full paper can be found here: https://doi.org/10.4230/LIPIcs.COSIT.2024.3.


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New publication in the International Journal of Human-Computer Studies

The 3D Sketch Maps project team recently published a paper entitled:  VResin: Externalizing spatial memory into 3D sketch map. In this paper, we refined the concept of 3D sketch maps, proposed a technological framework using 3D Cartesian coordinate axes, and provided design criteria for 3D sketch mapping interfaces. We implemented a VR-based 3D sketch mapping tool called VResin, which is associated with traditional resin painting, and a layer-by-layer sketching interface that considers both researcher and user needs. We then conducted a comparative user study with 48 participants between mid-air sketching and layer-by-layer sketching interfaces for memorising multi-layered buildings. We found that VResin helps users to create less distorted sketches while maintaining the level of completeness and generalisation compared to mid-air sketching in VR. Finally, we presented application scenarios demonstrating how 3D sketch maps can support people’s externalisation of their 3D spatial understanding. This study is part of a Sinergia project called “3D Sketch Maps”, funded by the Swiss National Science Foundation (SNSF) [grant number 202284].

The interface design of VResin


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3D Sketch Map research meeting in Münster

The 3D Sketch Map project team had a very productive research meeting in Münster, thanks to Prof. Jakub Krukar for the perfect organization in this wonderful city! In this project, we investigate 3D sketch maps from a theoretical, empirical, cognitive, as well as tool-​related perspective, with a particular focus on Extended Reality (XR) technologies. Sketch mapping is an established research method in fields that study human spatial decision-making and information processing, such as navigation and wayfinding. Although space is naturally three-dimensional (3D), contemporary research has focused on assessing individuals’ spatial knowledge with two-​dimensional (2D) sketches. For many domains though, such as aviation or the cognition of complex multilevel buildings, it is essential to study people’s 3D understanding of space, which is not possible with the current 2D methods. In the research meeting, we exchanged our latest research outputs and future plans.


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Sailin Zhong joins the team

It is our pleasure to welcome Sailin Zhong, who has started as a postdoctoral researcher in our lab. Sailin holds a PhD in Human-Computer Interaction from the University of Fribourg, Switzerland. Her research in our group will focus on collaborative 3D sketch mapping, extending our ongoing work on novel 3D sketch mapping methods.


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Kevin Gonyop Kim: Professor at FHNW

Kevin has left us for his new position as Professor of Spatial Computing and 3D Technologies at the Institute of Interactive Technologies at the University of Applied Sciences and Arts Northwestern Switzerland (FHNW) in Windisch, Switzerland.

We thank him for the contributions he has made to the geoGAZElab during his PostDoc time, in particular in the scope of the 3D Sketch Maps project. All the best, and let’s stay in contact!


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Tianyi Xiao joins the team

Our team is growing further: we’re so happy to have Tianyi Xiao on board, who is joining the 3D Sketch Maps project as a doctoral student. Welcome!


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Participation in COSIT 2022

We are excited to be part of the 15th International Conference on Spatial Information Theory (COSIT 2022) that is taking place on September 5-9, 2022, in Kobe, Japan.

Two of our lab members, Kevin Kim and Adrian Sarbach, will attend the conference (in person!) and present our latest work. We are looking forward to meeting other researchers and discussing exciting research!

More information: http://cosit2022.iniad.org

 


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Kevin Gonyop Kim joins the team

We’re excited to welcome Kevin Gonyop Kim, who has now started as a postdoctoral researcher in the 3D sketch maps project. Welcome to the team, Kevin!


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PostDoc position in 3D Sketch Maps

In addition to the open PhD position, which has been announced here earlier, we’re also offering an open PostDoc position in the 3D Sketch Maps project.


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New project and open position: 3D Sketch Maps

We’re very much looking forward to the start of the 3D Sketch Maps project, for which we have now announced an open PhD position: Interaction with 3D Sketch Maps in Extended Reality.

The 3D Sketch Maps project, funded by the Swiss National Science Foundation in the scope of the Sinergia funding program, investigates 3D sketch maps from a theoretical, empirical, cognitive, as well as tool-​related perspective, with a particular focus on Extended Reality (XR) technologies. Sketch mapping is an established research method in fields that study human spatial decision-​making and information processing, such as navigation and wayfinding. Although space is naturally three-​dimensional (3D), contemporary research has focused on assessing individuals’ spatial knowledge with two-​dimensional (2D) sketches. For many domains though, such as aviation or the cognition of complex multilevel buildings, it is essential to study people’s 3D understanding of space, which is not possible with the current 2D methods. Eye tracking will be used for the analysis of people’s eye movements while using the sketch mapping tools.

The 4-​year project will be carried out jointly by the Chair of Geoinformation Engineering, the Chair of Cognitive Science at ETH Zurich (Prof. Dr. Christoph Hölscher), and the Spatial Intelligence Lab at University of Münster (Prof. Dr. Angela Schwering).

Interested? Please check out the open PhD position on the ETH job board!