Including olfactory cues in virtual reality (VR) would enhance user immersion in the virtual environment, and precise control of smell would facilitate a more realistic experience for users. In this paper, we present aBio, an active bi-olfactory display system that delivers scents precisely to specific locations rather than diffusing scented air into the atmosphere. aBio provides users with a natural olfactory experience in free air by colliding two vortex rings launched from dual speaker-based vortex generators, which also has the effect of cushioning the force of air impact. According to the various requests of different applications, the collision point of the vortex rings can be positioned anywhere in front of the user's nose. To verify the effectiveness of our device and understand user sensations when using different parameters in our system, we conduct a series of experiments and user studies. The results show that the proposed system is effective in the sense that users perceive smell without sensible haptic disturbance while the system consumes only a very small amount of fragrant essential oil. We believe that aBio has great potential for increasing the level of presence in VR by delivering smells with high efficiency.

This paper presents i-m-Space, an interactive multimedia rehabilitation space that helps the post-surgery recovery of breast cancer patients. Our goal is to improve patients' physical therapy and psychological relaxation experience through careful applications of multimedia technology. i-m-Space consists of three types of breathing-based relaxation and three types for interactive exercise-based rehabilitation.

In this paper we introduce a tubular interface, the i-m-Tube, which provides convenient user interaction with multimedia content by multi-touch input and multi-resolution display. With its tubular surface, the i-m-Tube is suitable for displaying panoramic image content like the Chinese scroll painting "Along the River During the Ch'ingming Festival" which has been regarded as a national treasure and widely known by its extraordinary width and its various details. The strength of our system is that it is not just suitable for displaying panoramic content, but also possible to create an intuitive and natural context for user interaction with multimedia content displayed on the i-m-Tube by multi-finger touch. It also provides a high resolution area on demand, which is projected by a steerable projector in a Full-HD resolution. We have developed our system as an interface which can be applied adaptively to different applications, having the features of multi-touch and multi-resolution interactivity on a tubular display. In this work, we have implemented several prototypes designed for different applications, like "Tetris360" aiming on co-op arcade gaming, and "Panoramic Cover Flow" for interactive digital signage, to show the capabilities and opportunities of the i-m-Tube display system. With our preliminary experiments on the i-m-Tube, it is exciting to see the potential of the i-m-Tube as a new interface for people to meet the interactive multimedia touch in this generation.

We explore possibilities for applying wireless sensor networks (WSN) in interactive art. One Million Heartbeats, our interactive artwork, uses a ZigBee wireless sensor network, bio-feedback sensors, video projection, sculpture, and a weblog. It depicts the struggle between twin fetuses in the "world" of a mother's womb, and many people interpret it as commentary on political or social events. We will collect one million "heartbeats" from participants - the behaviors of our participants determine the characteristics of the fetuses and the experience of the mother. Participant comments become part of the piece. This artwork explores collective social behavior. We believe that this piece shows a new medium for interactive art: ubiquitous wireless sensor networks.