Energy-efficient RGB camera based virtual keyboard system

With the development of computer technology and the increasing maturity of its application in various fields, it is difficult for people's usual mechanical keyboards to accompany them in different working situations, and the public increasingly needs a convenient and portable virtual keyboard. In this paper, a virtual keyboard system based on RGB camera is designed based on image analysis, infrared laser positioning and laser projection technology. Compared with the traditional keyboard, this system can project the keyboard image onto the desktop, and also use the camera to capture and record the movement of the fingers to determine whether there is a keystroke. The system can be used with mobile terminals to help people deal with daily office work or even emergency business anywhere, anytime.