Abstract: In order to reconstruct the three-dimensional shape of the rotating body，a single image is proposed to achieve the extraction of the rotating body bus and the symmetrical axis． This method is to obtain two-dimensional image by using industrial camera． In the image preprocessing，the image shooting causes tilt，and we gives a geometric correction method，bus information extraction of rotating body using the contour feature of target area，combined with the symmetry axis of symmetry around the rotating body contour curve to obtain the target object． With the aim of ceramic vase，the extraction of the bus and symmetry axis of the rotating body is finally realized，and the three-dimensional shape of the target is rebuilt． The experiment proves the effectiveness of the proposed method．

Key words: rotating body, busbar, symmetric axis, 3D reconstruction