Turntable-based 3D object reconstruction

In this paper, we present a system that can acquire graphical models from real objects. Given an image sequence of a complex shape object placed on a turntable, the presented algorithm generates automatically the 3D model. In contrast to previous approaches, the technique described here is only based on conies properties and uses the spatiotemporal aspect of the sequence of images. From the projective properties of the conies and using the camera calibration parameters the Euclidean 3D coordinates of a point are obtained from the geometric locus of the image points trajectories. An algorithm has been implemented to compute the 3D reconstruction automatically. Examples on both synthetic and real image sequences are presented