No abstract

Public displays are important pervasive media in modern cities. Passers-by read information from these displays placed in bus stations,airports,shopping malls,etc.At present,displays are isolated from personal mobile devices.Users can only read information passively, and it is difficult to download any interesting information directly from public displays via personal mobile devices. In contrast, inter-device seamless communication is a trend of the pervasive computing society. In this paper, we explore an effective way to eliminate the borders between pervasive displays and personal mobile devices based on ad hoc wireless communication. We implement a tool which facilitates the process of resource exchange between the two typical pervasive media. Via a pilot study, we demonstrate the advantages of our solution compared with current practices. We believe that this tool could help construct more intelligent pervasive displays or novel social media bringing people together for social activities in the real world.

Proxemics is the terminology used to describe spatial relationships among humans while communicating with each other. It could be interesting to apply the proxemics theory to the domain of human computer interaction, namely proxemic interaction. Computers, unlike people, find it hard to interpret instantly and precisely the user's nonverbal hints, such as body postures, movement, and distance. With the development of computer vision, these tasks can be performed with simple devices. In this paper, we build the abstract model for calculation in proxemic interaction, and further illustrate the prototype based on research life in the lab. We then describe evolution of the prototype through investigation of proxemic interaction. Finally, we ask users for their opinion via a preliminary user study and usability test. Our study shows that users are attracted by this kind of interaction, and especially by the application scenario in the lab with a large public screen.