Fragmented cultural relics restoration based on point cloud data

Three-dimensional scanning technology, graphic image processing, virtual reality and other technologies are an important and inevitable way to protect cultural relics. With the passage of time, most of the cultural relics have been removed. Aiming at the main process of fragmenting cultural relics restoration based on point cloud processing, this paper summarizes the algorithms of 3d data denoising and simplification, model feature extraction, model classification and model assembling in virtual restoration of fragmenting cultural relics.