A Virtual Restoration Strategy of 3D Scanned Objects

For creating model, laser scanner is frequently used to sample the object. In practice, due to surface disrepair, certain areas of the object are usually not sampled which will lead holes. This paper presents a strategy for filling holes. First, the k-nearest neighbors of scattered point cloud are found to project to the plane by the method of ALS; then mesh within the plane is divided to extract the boundary; the hole is filled under the constraint of the boundary. Finally, the complete model is built to achieve virtual restoration. The results show that the strategy is more simple and effective with less time costs in contrast to the typical method.