摘要：Interaction between user and computer is gradually going beyond the traditional mouse and keyboard. New ways of interaction are emerging, which use new and different means for data acquisition. Virtual or augmented reality, haptic, tangible or camera-based user interfaces are all examples of this. Computer games take advantage of these new facilities, as they obtain the benefit of providing new user (player) experience with every new interface developed. In this article, we present a non-conventional user interface for the popular Air Hockey game. This interface is based on a table-like surface with support for multiple users. Additionally, it does not require special nor costly hardware
