On body capacitive sensing for a simple touchless user interface

In this paper we describe the use of textile, multi electrode capacitive on body sensing for contact less detection of simple control gestures. The work is motivated by a hospital ward rounds scenario of the in European Union sponsored WearIT@Work project. The focus of this work is not on human computer interface aspects but on the design, implementation, and evaluation of the sensing system and in particular on issues specific to on body placement and reliable detection of gestures with the multi-electrode design.