Laser Projection Virtual Keyboard: A Laser and Image Processing based Human-Computer Interaction Device

Abstract: Todays QWERTY Keyboard have large size and can hardly be modified. As the size of desktops and laptops is decreasing day by day, the traditional keyboard acts as an obstacle in the path of the further minimization. Virtual Keyboard having a compact size may be an appropriate solution to the drawbacks with the traditional keyboard. Currently many 3D Camera based virtual Keyboard exist. This paper’s main aim is to create a Virtual Keyboard with minimum hardware, easy to use and configure options for future improvements too. It uses a standard web camera. The main focus of this project is to demonstrate use of Laser Projection Virtual Keyboard in place of Conventional Keyboard and to flash a light on current Virtual Keyboard. The layout of the keyboard is generated using laser projection. Importantly, it can be easily reconfigured to act as a replacement to theconventional English Keyboard projection using many different languages inputs allowing multiple language typing.

Keywords: Virtual Keyboard, QWERTY Keyboard.