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Author: 12129

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AttentiveLearn: Personalized Post-Lecture Support for Gaze-Aware Immersive Learning

Immersive learning environments such as virtual classrooms in Virtual Reality (VR) offer learners unique learning experiences, yet providing effective learner support remains a challenge. While prior HCI research has explored in-lecture support for immersive learning, little research has been conducted to provide post…

Shi Liu et al.Karlsruhe Institute of Technology

CoEmpaTeam: Enhancing Cognitive Empathy using LLM-based Avatars and Dynamic Role Play in Virtual Reality

Cognitive empathy, the ability to understand others‘ perspectives, is essential for effective communication, reducing biases, and constructive negotiation. However, this skill is declining in a performance-driven society, which prioritizes efficiency over perspective-taking. Here, the training of cognitive empathy is…

Dehui Kong et al.Karlsruhe Institute of Technology

Delusionized? Potential Harms of Proprioceptive Manipulations through Hand Redirection in Virtual Reality

To enhance interactions in VR, hand redirection (HR)-based illusion techniques apply offsets between the virtual and real-world position of users’ hands. While adaptation to such HR offsets is recognized, their impact on proprioception accuracy remains unexplored. However, deploying HR without understanding its potent…

Martin Feick et al.German Research Center for Artificial Intelligence

Imprinto: Enhancing Infrared Inkjet Watermarking for Human and Machine Perception

Hybrid paper interfaces leverage augmented reality to combine the desired tangibility of paper documents with the affordances of interactive digital media. Typically, virtual content can be embedded through direct links (e.g., QR codes); however, this impacts the aesthetics of the paper print and limits the available…

Martin Feick et al.German Research Center for Artificial Intelligence

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Predicting the Limits: Tailoring Unnoticeable Hand Redirection Offsets in Virtual Reality to Individuals’ Perceptual Boundaries

Many illusion and interaction techniques in Virtual Reality (VR) rely on Hand Redirection (HR), which has proved to be effective as long as the introduced offsets between the position of the real and virtual hand do not noticeably disturb the user experience. Yet calibrating HR offsets is a tedious and time-consuming…

Martin Feick et al.German Research Center for Artificial Intelligence

Beyond the Blink: Investigating Combined Saccadic & Blink-Suppressed Hand Redirection in Virtual Reality

In pursuit of hand redirection techniques that are ever more tailored to human perception, we propose the first algorithm for hand redirection in virtual reality that makes use of saccades, i.e., fast ballistic eye movements that are accompanied by the perceptual phenomenon of change blindness. Our technique combines…

André Zenner et al.German Research Center for Artificial Intelligence

The Impact of Avatar Completeness on Embodiment and the Detectability of Hand Redirection in Virtual Reality

To enhance interactions in VR, many techniques introduce offsets between the virtual and real-world position of users’ hands. Nevertheless, such hand redirection (HR) techniques are only effective as long as they go unnoticed by users—not disrupting the VR experience. While several studies consider how much unnoticeab…

Martin Feick et al.German Research Center for Artificial Intelligence

Turn-It-Up: Rendering Resistance for Knobs in Virtual Reality through Undetectable Pseudo-Haptics

Rendering haptic feedback for interactions with virtual objects is an essential part of effective virtual reality experiences. In this work, we explore providing haptic feedback for rotational manipulations, e.g., through knobs. We propose the use of a Pseudo-Haptic technique alongside a physical proxy knob to simulat…

Martin Feick et al.German Research Center for Artificial Intelligence

VoxelHap: A Toolkit for Constructing Proxies Providing Tactile and Kinesthetic Haptic Feedback in Virtual Reality

Experiencing virtual environments is often limited to abstract interactions with objects. Physical proxies allow users to feel virtual objects, but are often inaccessible. We present the VoxelHap toolkit which enables users to construct highly functional proxy objects using Voxels and Plates. Voxels are blocks with sp…

Martin Feick et al.German Research Center for Artificial Intelligence

Designing Visuo-Haptic Illusions with Proxies in Virtual Reality: Exploration of Grasp, Movement Trajectory and Object Mass

Visuo-haptic illusions are a method to expand proxy-based interactions in VR by introducing unnoticeable discrepancies between the virtual and real-world. Yet, how different design variables affect the illusions with proxies is still unclear. To unpack a subset of variables, we conducted two user studies with 48 parti…

Martin Feick et al.German Research Center for Artificial Intelligence

Visuo-haptic Illusions for Linear Translation and Stretching using Physical Proxies in Virtual Reality

Providing haptic feedback when manipulating virtual objects is an essential part of immersive virtual reality experiences; however, it is challenging to replicate all of an object’s properties and characteristics. We propose the use of visuo-haptic illusions alongside physical proxies to enhance the scope of proxy-bas…

Martin Feick et al.German Research Center for Artificial Intelligence

Tactlets: Adding Tactile Feedback to 3D Objects Using Custom Printed Controls

Rapid prototyping of tactile output on 3D objects promises to enable a more widespread use of the tactile channel for ubiquitous, tangible and wearable computing. Existing prototyping approaches, however, have limited tactile output capabilities, require advanced skills for design and fabrication, or are incompatible…

Daniel Groeger et al.Saarland University

Perspective on and Re-orientation of Physical Proxies in Object-Focused Remote Collaboration

Remote collaborators working together on physical objects have difficulty building a shared understanding of what each person is talking about. Conventional video chat systems are insufficient for many situations because they present a single view of the object in a flattened image. To understand how this limited pers…

Martin Feick et al.German Research Center for Artificial Intelligence

Paper Title	Authors	Research Topics	Paper Database	Year
AttentiveLearn: Personalized Post-Lecture Support for Gaze-Aware Immersive Learning Immersive learning environments such as virtual classrooms in Virtual Reality (VR) offer learners unique learning experiences, yet providing effective learner support remains a challenge. While prior HCI research has explored in-lecture support for immersive learning, little research has been conducted to provide post…	SL Shi Liu et al.Karlsruhe Institute of Technology
CoEmpaTeam: Enhancing Cognitive Empathy using LLM-based Avatars and Dynamic Role Play in Virtual Reality Cognitive empathy, the ability to understand others‘ perspectives, is essential for effective communication, reducing biases, and constructive negotiation. However, this skill is declining in a performance-driven society, which prioritizes efficiency over perspective-taking. Here, the training of cognitive empathy is…	DK Dehui Kong et al.Karlsruhe Institute of Technology
Delusionized? Potential Harms of Proprioceptive Manipulations through Hand Redirection in Virtual Reality To enhance interactions in VR, hand redirection (HR)-based illusion techniques apply offsets between the virtual and real-world position of users’ hands. While adaptation to such HR offsets is recognized, their impact on proprioception accuracy remains unexplored. However, deploying HR without understanding its potent…	MF Martin Feick et al.German Research Center for Artificial Intelligence
Imprinto: Enhancing Infrared Inkjet Watermarking for Human and Machine Perception Hybrid paper interfaces leverage augmented reality to combine the desired tangibility of paper documents with the affordances of interactive digital media. Typically, virtual content can be embedded through direct links (e.g., QR codes); however, this impacts the aesthetics of the paper print and limits the available…	MF Martin Feick et al.German Research Center for Artificial Intelligence
AdRecommended Learn AI Coding at CodeNow Structured lessons, hands-on projects, and continuous updates for people bringing AI into real development work. Explore Now
Predicting the Limits: Tailoring Unnoticeable Hand Redirection Offsets in Virtual Reality to Individuals’ Perceptual Boundaries Many illusion and interaction techniques in Virtual Reality (VR) rely on Hand Redirection (HR), which has proved to be effective as long as the introduced offsets between the position of the real and virtual hand do not noticeably disturb the user experience. Yet calibrating HR offsets is a tedious and time-consuming…	MF Martin Feick et al.German Research Center for Artificial Intelligence
Beyond the Blink: Investigating Combined Saccadic & Blink-Suppressed Hand Redirection in Virtual Reality In pursuit of hand redirection techniques that are ever more tailored to human perception, we propose the first algorithm for hand redirection in virtual reality that makes use of saccades, i.e., fast ballistic eye movements that are accompanied by the perceptual phenomenon of change blindness. Our technique combines…	AZ André Zenner et al.German Research Center for Artificial Intelligence
The Impact of Avatar Completeness on Embodiment and the Detectability of Hand Redirection in Virtual Reality To enhance interactions in VR, many techniques introduce offsets between the virtual and real-world position of users’ hands. Nevertheless, such hand redirection (HR) techniques are only effective as long as they go unnoticed by users—not disrupting the VR experience. While several studies consider how much unnoticeab…	MF Martin Feick et al.German Research Center for Artificial Intelligence
Turn-It-Up: Rendering Resistance for Knobs in Virtual Reality through Undetectable Pseudo-Haptics Rendering haptic feedback for interactions with virtual objects is an essential part of effective virtual reality experiences. In this work, we explore providing haptic feedback for rotational manipulations, e.g., through knobs. We propose the use of a Pseudo-Haptic technique alongside a physical proxy knob to simulat…	MF Martin Feick et al.German Research Center for Artificial Intelligence
VoxelHap: A Toolkit for Constructing Proxies Providing Tactile and Kinesthetic Haptic Feedback in Virtual Reality Experiencing virtual environments is often limited to abstract interactions with objects. Physical proxies allow users to feel virtual objects, but are often inaccessible. We present the VoxelHap toolkit which enables users to construct highly functional proxy objects using Voxels and Plates. Voxels are blocks with sp…	MF Martin Feick et al.German Research Center for Artificial Intelligence
Designing Visuo-Haptic Illusions with Proxies in Virtual Reality: Exploration of Grasp, Movement Trajectory and Object Mass Visuo-haptic illusions are a method to expand proxy-based interactions in VR by introducing unnoticeable discrepancies between the virtual and real-world. Yet, how different design variables affect the illusions with proxies is still unclear. To unpack a subset of variables, we conducted two user studies with 48 parti…	MF Martin Feick et al.German Research Center for Artificial Intelligence
Visuo-haptic Illusions for Linear Translation and Stretching using Physical Proxies in Virtual Reality Providing haptic feedback when manipulating virtual objects is an essential part of immersive virtual reality experiences; however, it is challenging to replicate all of an object’s properties and characteristics. We propose the use of visuo-haptic illusions alongside physical proxies to enhance the scope of proxy-bas…	MF Martin Feick et al.German Research Center for Artificial Intelligence
Tactlets: Adding Tactile Feedback to 3D Objects Using Custom Printed Controls Rapid prototyping of tactile output on 3D objects promises to enable a more widespread use of the tactile channel for ubiquitous, tangible and wearable computing. Existing prototyping approaches, however, have limited tactile output capabilities, require advanced skills for design and fabrication, or are incompatible…	DG Daniel Groeger et al.Saarland University
emoji_events Perspective on and Re-orientation of Physical Proxies in Object-Focused Remote Collaboration Remote collaborators working together on physical objects have difficulty building a shared understanding of what each person is talking about. Conventional video chat systems are insufficient for many situations because they present a single view of the object in a flattened image. To understand how this limited pers…	MF Martin Feick et al.German Research Center for Artificial Intelligence