With the proliferation of Internet-of-Things (IoT) devices, acoustic sensing attracts significant
attention in recent years. It exploits acoustic transceivers such as microphones and speakers …

Our hands serve as a fundamental means of interaction with the world around us. Therefore,
understanding hand poses and interaction contexts is critical for human-computer …

Current touch input technologies are best suited for small and flat applications, such as
smartphones, tablets and kiosks. In general, they are too expensive to scale to large …

3D printing is widely used to physically prototype the look and feel of 3D objects. Interaction
possibilities of these prototypes, however, are often limited to mechanical parts or post …

Recognition of human behavior plays an important role in context-aware applications.
However, it is still a challenge for end-users to build personalized applications that …

We propose a novel mobile system, called EchoTag, that enables phones to tag and
remember indoor locations without requiring any additional sensors or pre-installed …

A well-known bottleneck of contemporary mobile devices is the inefficient and error-prone
touchscreen keyboard. In this paper, we propose UbiK, an alternative portable text-entry …

We introduce Flexibles: 3D-printed flexible tangibles that are deformation-aware and
operate on capacitive touchscreens. Flexibles add expressive deformation input to …

We propose a sensorization method for soft pneumatic actuators that uses an embedded
microphone and speaker to measure different actuator properties. The physical state of the …

We introduce Acoustruments: low-cost, passive, and power-less mechanisms, made from
plastic, that can bring rich, tangible functionality to handheld devices. Through a structured …