Development of multi-functional laser pointer mouse through image processing

Abstract

A beam projector is popularly used for a presentation nowadays. In order to point out local area of the projected image, a laser pointer is used with it. Simple wireless presenter has only limited functions of a computer mouse(pointing device) such as "go to next slide" or "back to previous slide" in a specific application i.e., MS-PowerPoint, with wireless channel; thus, there is inconvenience to carry out other controls, e.g., execution or termination of an application and maximization or minimization of a window, etc. during the presentation. The main objective of this paper is to implement a wireless multi-functional laser pointer mouse that has the same functions of a computer mouse. In order to get position of the laser spot in the projector display, an image processing to detect the laser spot in the camera image is required. In addition, transformation of the spot position into computer display coordinates is needed to execute computer controls on the computer display. © 2011 Springer-Verlag.