Imaginary Joint: Proprioceptive Feedback for Virtual Body Extensions via Skin Stretch Abstract Virtual body extensions such as a wing or tail have the potential to offer users new bodily experiences and capabilities in virtual and augmented reality. To use these extensions as naturally as one’s own body—particularly for body parts that are normally hard to see, such as a tail—it is essential to provide proprioceptive […]
Move with Style! Enhancing Avatar Embodiment in Virtual Reality through Proprioceptive Motion Feedback Abstract In virtual reality (VR), users slip into a variety of roles, represented by a rich diversity of avatars that each exhibit specific visual attributes and motionstyles. While users can see their avatar’s motion in VR, they usually cannot feel it. To enhance avatar embodiment, we propose active proprioceptive feedback that aligns […]
GestureCoach: Rehearsing for Engaging Talks with LLM-Driven Gesture Recommendations Abstract This paper introduces GestureCoach, a system designed to help speakers deliver more engaging talks by guiding them to gesture effectively during rehearsal. GestureCoach combines an LLM-driven gesture recommendation model with a rehearsal interface that proactively cues speakers to gesture appropriately. Trained on experts’ gesturing patterns from TED talks, the model consists of two modules: an […]
Texergy: Textile-based Harvesting, Storing, and Releasing of Mechanical Energy for Passive On-Body Actuation Abstract Humans instinctively manipulate and “actuate” their clothing, for instance, to adapt to the environment or to modify aesthetics. However, such manual actuation remains in exible and directly tied to user action. We introduce Texergy, a textile-based technical framework that decouples user input and actuated output to make passive on-body actuation interactive […]
CreepyCoCreator? Investigating AI Representation Modes for 3D Object Co-Creation in Virtual Reality Abstract Generative AI in Virtual Reality offers the potential for collaborative object-building, yet challenges remain in aligning AI contributions with user expectations. In particular, users often struggle to understand and collaborate with AI when its actions are not transparently represented. This paper thus explores the co-creative object-building process through a Wizard-of-Oz study, focusing […]
ExoKit: A Toolkit for Rapid Prototyping of Interactions for Arm-based Exoskeletons Exoskeletons open up a unique interaction space that seamlessly integrates users’ body movements with robotic actuation. Despite its potential, human-exoskeleton interaction remains an underexplored area in HCI, largely due to the lack of accessible prototyping tools that enable designers to easily develop exoskeleton designs and customized interactive behaviors. We present ExoKit, a do-it-yourself toolkit […]
3HANDS Dataset: Learning from Humans for Generating Naturalistic Handovers with Supernumerary Robotic Limbs Abstract Supernumerary robotic limbs are robotic structures integrated closely with the user’s body, which augment human physical capabilities and necessitate seamless, naturalistic human-machine interaction. For effective assistance in physical tasks, enabling SRLs to hand over objects to humans is crucial. Yet, designing heuristic-based policies for robots is time-consuming, difficult to generalize across […]
Embrogami: Shape-Changing Textiles with Machine Embroidery Abstract Machine embroidery is a versatile technique for creating custom and entirely fabric-based patterns on thin and conformable textile surfaces. However, existing machine-embroidered surfaces remain static, limiting the interactions they can support. We introduce Embrogami, an approach for fabricating textile structures with versatile shape-changing behaviors. Inspired by origami, we leverage machine embroidery to form finger-tip-scale mountain-and-valley structures on […]
Capacitive Touch Sensing on General 3D Surfaces Abstract Mutual-capacitive sensing is the most common technology for detecting multi-touch, especially on flat and simple curvature surfaces. Its extension to a more complex shape is still challenging, as a uniform distribution of sensing electrodes is required for consistent touch sensitivity across the surface. To overcome this problem, we propose a method to adapt the sensor layout […]
Shaping Compliance Inducing Haptic Illusion of Compliance in Different Shapes with Electrotactile Grains Abstract Compliance, the degree of displacement under applied force, is pivotal in determining the material perception when touching an object. Vibrotactile actuators can be used for creating grain-based virtual compliance, but they have poor spatial resolution and a limiting rigid form factor. We propose a novel electrotactile compliance illusion that renders grains […]
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