Improving contour based pose estimation for fast 3D measurement of free form objects

This paper introduces new techniques for pose estimation of free form objects with an optical 3D measurement system. The approach of pose estimation based on contour features was extended by utilizing projected features, which allows to overcome estimation limitations due to the lack of features on free form objects. The principles of combining contour features with projected markers are explained and results comparing different sizes, geometries and densities of projected markers are provided.