Feature Estimation and Registration of Point Clouds in Reverse Engineering

Cultural relic is the carrier of information, such as production, life, science and technology, art and so on. However, due to natural and man-made reasons, artifacts are often destroyed. Excavation site is the most common variety of cultural relics, the need for cultural relics repair. Because the artifacts are generally made on the rotating disk, so the object of this study is the rotating debris. The geometric characteristics of the rotating body are the rotation axis, the contour line, the radius of rotation and the angle of fit. Estimate the overall characteristics of the rotary body have important reference value for computer aided restoration of cultural relics. The efficiency and precision of the axis of rotation, contour is estimated by different methods are different, which will directly affect the follow-up work of this paper focuses on the stitching, from the axis of rotation estimation, contour calculation, rotation radius and central angle calculation is discussed.