We propose a novel method for contour transformation using motion estimation of object fringe. In the proposed method, first, track points are set on the object fringe, and control points are set on the object contour. The control points are moved according to the result of motion estimation of track points. The motions of track points are estimated by the weighted least-squares method, and the reliability of the result of motion estimation is used. In order to demonstrate the efficiency of the proposed method, we applied it to object extraction from video. The proposed method reduced error of object extraction and extended tracking time. It was confirmed that this method extracts non-rigid body object in the case of complex background video.
