Any-Wall Touch Control System With Switching Filter Based on 3-D Sensor

Abstract

Aiming at the problem that the hardware cost of the interactive interface of the large screen interactive system is high and the noise disturbance can lead to the inaccurate positioning of the interactive target. This paper proposes an any-wall touch system with the switching filter based on 3-D sensor. The proposed any-wall touch system can be achieved by connecting only one computer and the human-computer interaction effect can be well obtained. The main contributions of this paper are as follows: 1) introduce the switching system method into the filter for the first time and propose a switching filter based on the average dwell time switching rule to realize the balance between accuracy and real-time and 2) this presented method can realize touching technology on the wall, which does not need liquid crystal display screen or LED large screen and other expensive display side of the hardware. Using the projector projection wall as a display side and the independent development of interactive software, it can achieve any wall touch function. Many experiments show that the proposed technology has a multi-functional, simple and portable, high precision, which can be widely extended to the classroom, corporate conference room and display platform and other interactive sites.