Outdoor gesture recognition system using accurate absolute position coordinates

Abstract

In this paper, we propose a gesture recognition system using accurate absolute position coordinates, which are acquired by an Real Time Kinematic Global Navigation Satellite System(RTK-GNSS) sensor. The RTK-GNSS sensor is not affected by sunshine and does not need to be calibrated; additionally, drift does not occur, even for long-term use. The system consists of an antenna, a 10-Hz RTK-GNSS processor, and a PC. The user wears the antenna connected to the processor on the back of the hand and may freely move the hand when the antenna receives satellites signals. As an experiment, we implemented gesture-sensing trials using our system to input a line and an arbitrary path. As a result, they were well observed with an accuracy on the order of a centimeter, even outside without any calibration. Through this experiment, our system has great potential to be used for gesture recognition system in flexible outdoor environments.