André Zenner

schoolGerman Research Center for Artificial Intelligencebar_chart#475 Global Rank

Total Papers

HCI Rank

#475

Research Areas

Years Active

Recent Publications

Understanding How Mobile Interactions Shape Grasp and Contact Patterns Beyond the Touchscreen

The way users hold a smartphone depends on the interaction task, yet little is known about the fingers' engagement with the device's surfaces beyond the touchscreen. Such an understanding not only opens up opportunities for novel on- and off-screen interactions, but also the device’s possible physical affordances. We…

CHI '265th+ AuthorImmersion & Presence Research +2

Determining Perception Thresholds for Real and Virtual Inclinations While Cycling in Virtual Reality

In virtual reality (VR) experiences, mismatches between reality and virtuality are usually undesirable, as they can disrupt immersion and induce cybersickness. However, when carefully controlled, they may expand the design space of VR. This research investigates perceptual detection thresholds for mismatches between r…

CHI '264th AuthorContext-Aware Computing +2

Privacy & Safety Challenges of On-Body Interaction Techniques

On-body computing systems offer new forms of interaction, but while they are increasingly integrated into everyday contexts, their unique privacy and safety challenges remain understudied. This paper examines these challenges through a two-round interview study with $N = 15$ experts in human-computer interaction, an…

CHI '262nd AuthorIn-Vehicle Haptic, Audio & Multimodal Feedback +2

Connected Material Experiences using Bimanual Vibrotactile Crosstalk in Virtual Reality

Perceiving material properties such as elasticity, flexibility, and torsion is inherently bimanual, as we rely on the relative motion of our hands to form a unified sense of materiality. Yet, most vibrotactile material rendering approaches are limited to a single hand or finger. While prior work has explored bimanual…

UIST '25CorrespondingHaptic Wearables +1

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…

UIST '244th AuthorFull-Body Interaction & Embodied Input +2

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…

CHI '245th+ AuthorBest PaperFull-Body Interaction & Embodied Input +1

Touching the Moon: Leveraging Passive Haptics, Embodiment and Presence for Operational Assessments in Virtual Reality

Space agencies are in the process of drawing up carefully thought-out Concepts of Operations (ConOps) for future human missions on the Moon. These are typically assessed and validated through costly and logistically demanding analogue field studies. While interactive simulations in Virtual Reality (VR) offer a compara…

CHI '241st AuthorHand Gesture Recognition +2

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…

CHI '242nd AuthorForce Feedback & Pseudo-Haptic Weight +2

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…

UIST '232nd AuthorForce Feedback & Pseudo-Haptic Weight +1

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…

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