Survey of optical indoor positioning systems

Abstract

Recent advances in CCD technologies, processing speed and image understanding have been driving the development of the camera-based positioning systems. An improved performance of optical systems has triggered image based positioning methods to become an attractive alternative for applications in industrial metrology as well as for robot- and pedestrian navigation. This paper provides a survey of current optical indoor positioning approaches. Different systems are briefly described and categorized based on how the images are referenced to the environment.