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Method for Splicing Fragments Based on Constructing Surface Texture and Fracture Boundary Tuple

In1 the process of restoration of ceramic artifacts, due to its own character, environment and man-made factors, the fractured site is vulnerable to be damaged. Therefore, the traditional use of fracture site information has limitation. In this paper, a method of splicing fractured sites based on constructing surface texture and boundary contour tuples is proposed for the fragments of pottery cultural relics. Firstly, the potential ridge points are determined by the curvature and the least squares method is used to extract the texture features of the debris surface. Then, the texture elements are combined with the edge length and the vertex angle information to construct texture constraint tuples and realize preliminary matching. For the discrete point sets on the fracture boundary contour, use the genetic algorithm to calculate matching point pairs to obtain the final result. Experiments show that the proposed algorithm can achieve the splicing of broken artifact fragments, and it has certain superiority for the debris with obvious texture features.