A Calibration Method for Structured Light Systems Based on a Virtual Camera

摘要

are a simple and efficient tool in the field of 3D reconstruction. Existing of are either not precise or elastic. In this paper, an easy to use is proposed. The of a can accomplished with a good accuracy. The projector projects a checkerboard pattern rendered by OpenGL functions onto a planar board, and the coordinates of corner points in the projector image plane are adjusted to the target position with an iterative algorithm. Thus, the projector can "view" the printed chessboard pattern. The of a projector becomes essentially the same as that of a monocular . Meanwhile, the projector doesn't depend on a pre-calibrated , which makes errors of the cannot effect the projector . Experimental results show that the mean re-projection error of the projector is less than 1 pixel.