Human-Computer Integration (HInt) is an emerging paradigm in which computational and human systems are closely interwoven. We present a set of challenges for HInt research, formulated over the course of a five-day workshop consisting of 29 experts.

ACM CHI '20 — Full Paper

Accurate sketching in virtual 3D environments is challenging. We developed VRSketchPen, which uses two haptic modalities: pneumatic force feedback to simulate the contact pressure of the pen against virtual surfaces and vibrotactile feedback to mimic textures while moving the pen over virtual surfaces.

ACM VRST '20 — Full Paper

We describe our approach for developing a multimodal AR-system that combines visual and tactile cues in order to enhance the safety-awareness of humans in human-robot interaction tasks.

Workshop Paper at HRI 2020

Commercially available flexible printed circuit boards (FPCBs) have the potential to embed electronics, connectivity, and interactivity into the same surface. This makes them an ideal platform for untethered and interactive wearable devices.

ACM UbiComp/ISWC '20 Adjunct — Poster

We introduce DeformWear, tiny wearable devices that leverage single-point deformation input on various body locations. Despite the small input surface, DeformWear enables expressive and precise input using high-resolution pressure, shear, and pinch deformations.

ACM IMWUT '17 — Journal Article

SkinMarks are novel skin-worn I/O devices for precisely localized input and output on fine body landmarks. SkinMarks comprise skin electronics on temporary rub-on tattoos. They conform to fine wrinkles and are compatible with strongly curved and elastic body locations.

ACM CHI '17 — Full Paper

iSkin is a novel class of skin-worn sensors for touch input on the body. It is a very thin sensor overlay, made of biocompatible materials, and is flexible and stretchable. It can be produced in different shapes and sizes to suit various locations of the body such as the finger, forearm, or ear.

ACM CHI '15 — Full Paper, Best Paper Award (top 1%)

Skin is fundamentally different from off-body touch surfaces. In an empirical study we investigate characteristics of the various skin-specific input modalities, analyze what kinds of gestures are performed on skin, and study what are preferred input locations.

ACM CHI '14 — Full Paper

We introduce our vision of Fingernail Displays: tiny displays that are worn on the fingernails. We explore four application scenarios: (1) FingerPhone, (2) on-finger output on touch displays, (3) fingernail displays as in-situ information display on physical objects, and (4) animated nail art.

Workshop Paper at ACM CHI '13

Researchers have developed interaction concepts based on mobile projectors. Yet pursuing work in this area is cumbersome and time-consuming. To mitigate this problem, we contribute ProjectorKit, a flexible open-source toolkit that eases rapid prototyping mobile projector interaction techniques.

ACM MobileHCI '13 — Short Paper

Focus plus context displays combine high-resolution detail and lower-resolution overview using displays of different pixel densities. In this paper, we explore focus plus context displays using one or more mobile projectors in combination with a stationary display.

GRAND '13 — Research Note, Honorable Mention Paper Award

Printed electronics is changing the landscape of interactive devices and user interfaces. It enables novel types of electrical components, which are thin and deformable. They can be integrated into a large diversity of materials and geometries. This can be used for novel types of devices.

Workshop at Mensch und Computer '15