Human Computer Interaction

This work introduces a customized medium access control protocol, called DrxMAC, for resource-constrained radio devices. The protocol is based on a time-slotted communication scheme with a simple automated slot allocation based on device identities.

In this paper we propose an architecture for rendering rich and high-resolution haptic feedback on the user’s body while playing interactive games.

In this paper, we present an architecture that supports generation of haptic content, haptic content repositories, and customization of haptic experiences.

In this paper we introduce a mobile, generic, and inexpensive visuo-tactile sensory substitution device for the visually impaired.

TeslaTouch is a technology that provides tactile sensation to moving fingers on touch screens. Based on TeslaTouch, we have developed applications for the visually impaired to interpret and create 2D tactile information. In this paper, we demonstrate these applications, present observations from the interaction, and discuss TeslaTouch’s potential in supporting communication among visually impaired individuals.

Mobile phones can use their cameras and flashlight Light Emitting Diodes (LEDs) to exchange messages with low complex Visible Light Communication (VLC) networks, but these interfaces impose serious restrictions when used in a VLC network. In this paper we discuss how to extend mobile phones or tablets with a small peripheral device that is battery-free, uses only passive components, and offers VLC capabilities at the required data rate (kilobit per second).

Off-the-shelf Light Emitting Diodes (LEDs) and low-cost microcontrollers provide the foundation for networking using the visible light as communication medium. These networks require fast and stable synchronization and a distributed protocol to handle shared medium access. We present and evaluate a physical layer and a distributed, contention-based medium access control protocol that enables reliable communication over room range distances; both are implemented in software using low-cost commercial off-the-shelf building blocks.

We propose technology for designing and manufacturing interactive 3D printed speakers. With the proposed technology, sound reproduction can easily be integrated into various objects at the design stage and little assembly is required. The speaker can take the shape of anything from an abstract spiral to a rubber duck, opening new opportunities in product design.

An approach of rapid hologram generation for the realistic 3D image reconstruction based on the angular tiling concept is proposed, using a new graphic rendering approach integrated with a previously developed layer-based method for hologram calculation.

In this paper, we propose a novel method to compress video content based on image retargeting. First, a saliency map is extracted from the video frames either automatically or according to user input.