FIELD MICE - EXTRACTING HAND GEOMETRY FROM ELECTRIC-FIELD MEASUREMENTS

Several members of a family of techniques called Electric Field Sensin g are described. Each sensing technique can be understood as a measure ment of the value of a different component in an effective circuit dia gram that summarizes all possible current pathways involving the body to be sensed and the sensing electrodes. An analytical model of the se nsor response is presented and then a probabilistic framework for infe rring geometrical information from field measurements is described. Th e inference framework is demonstrated for the cases of a two-dimension al and a three-dimensional mouse.