An Intelligent Projection System Adapted to Arbitrary Surfaces

This paper designs and implements an intelligent projection system which automatically calibrates projected distorted images on an arbitrary surface. It consists of a projector, computer, camera and tilt sensor. Binary-coded structured light is projected to recognize the geometric shape of a projected surface. Tilt sensor determines a appropriate visual angle and an effective projected area. Discrete mapping algorithm is proposed to warp the original projected image which helps to compensate the distortion of a projected surface. The whole process takes less than two minutes. Experimental results show that this intelligent system does not only adapt to the variation of projector pose, but also any arbitrary projected surface automatically.