Universal Access in Human-Computer Interaction. Ambient Interaction : 4th International Conference on Universal Access in Human-Computer Interaction, UAHCI 2007 Held as Part of HCI International 2007

This is the second of a three-volume set that constitutes the refereed proceedings of the 4th International Conference on Universal Access in Human-Computer Interaction, UAHCI 2007, held in Beijing, China. Devoted to ambient interaction, it covers intelligent ambients, access to the physical environment, mobility and transportation, virtual and augmented environments, as well as interaction techniques and devices.