Self-Calibrating Camera-Assisted Presentation Interface

摘要: This paper presents a self-calibrating camera-assisted presentation interface that enables the user to control presentations using laser pointer. The setup system consists of computer connected an LCD projector and consumer-level digital camera aimed at screen. Although locations, orientations optical parameters are unknown, projector-camera calibrates itself by inferring mapping between pixels in image slide. is subsequently used detect position pointing device (such as pointer dot) on screen, allowing emulate actions mouse. may then select active regions presentation, or even draw projected image. Additionally, arbitrary distortions due placement negated, (and camera) be placed anywhere room — for instance, side rather than center room. solution works with standard hardware, but could easily incorporated into next generation systems.