2013 年 18 巻 4 号 p. 517-526
Due to the wide spread of smart phones and PCs, people can access information everywhere in everyday life. However are very few methods in accessing contents in a bathing environment. Some people carry smart phones into a bathroom but it is unnatural to be holding a device at during bathing. This paper propose an interactive water surface display system, in which the images are projected on the surface of water with bath salt and users can interact with information on the water by using gestures. In this paper, we discuss interaction design in a bathroom, describing an implementation of our system and its applications.