Auto guiding a mobile projector

Abstract

This paper presents a mathematical model, simulation and analysis of auto guided (robot) mobile projector using a feedback camera. The camera-projector system is consisting of a mobile projector, a stationary camera, and a planar screen. The camera is calibrated and can capture the full planar screen site with some accuracy error. For an ideal system, the geometrically compensating image projected from the projector need to fit onto the screen so that the displayed image will always be aligned and centered with the screen accurately. The system needs to automatically perform calculation on-line on the captured frame, find the coordinates of the corresponding quadrilateral and recovers the correct position and orientation for auto guidance of the mobile projector.