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Fragment Splicing Method Based on Surface Texture Characteristic

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In the process of restoration of ceramic artifacts, the fractured site is easy to be damaged due to its own characteristics, the environment, and man-made factors. The traditional stitching method based on geometric information of fracture location has some limitations. We propose a method of splicing of fractured sites combined with surface texture and boundary contour for the restoration of fragments of ceramic artifacts. 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 damaged texture constraints and realize preliminary matching. Two adjacent points in the boundary set of the contours are concatenated to form the contour chord sequence descriptor, and the contour position information is constrained to obtain the final matching pair. The results show that the proposed algorithm can achieve the splicing of broken artifact fragments, and it has certain advantages for the debris with obvious texture features.









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王飘:西北大学信息科学与技术学院, 陕西 西安 710127
耿国华:西北大学信息科学与技术学院, 陕西 西安 710127
张雨禾:西北大学信息科学与技术学院, 陕西 西安 710127

联系人作者:耿国华(ghgeng@nwu.edu.cn); 王飘(wendywp@126.com);

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Wang Piao,Geng Guohua,Zhang Yuhe. Fragment Splicing Method Based on Surface Texture Characteristic[J]. Laser & Optoelectronics Progress, 2018, 55(8): 081012

王飘,耿国华,张雨禾. 基于表面纹理特征定义的碎片拼接方法[J]. 激光与光电子学进展, 2018, 55(8): 081012

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