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首页> 外文会议>International Symposium on Automation and Robotics in Construction and Mining >Automatic Reassembly of Fragments for Restoration of Heritage Site Structures
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Automatic Reassembly of Fragments for Restoration of Heritage Site Structures

机译：用于恢复遗产站点结构的碎片的自动重新组装

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摘要

A major bottleneck activity in the process of restoration of Heritage Structures is the reassembly of its fragments. Computer-aided reassembly could assist in finding the relation between them thereby reducing time, manpower and potential degradation to fragile fragments. Using geometric compatibility between the adjacent fragments as the central idea, a reassembly framework for a three-dimensional shell is proposed as a logical extension of the two-dimensional framework. Edges are extracted as polygons and relevant features are computed at each of its vertices. Sequences of the match for two fragments in the feature space are found using a modified version of Smith-Waterman Algorithm. Each match is assessed using a connectivity score. The final choice of best match is left to the user by displaying the resultant assembled fragments of prospective candidates along with the score. After pairwise matching, the global reassembly is done through a clustering-based method. This framework can handle fragments even with curved edges which can be reasonably approximated by a set of edges. We verify the methodology using a simulated dataset for both 2D pieces and a shattered 3D surface object.
机译：遗传结构恢复过程中的主要瓶颈活动是其碎片的重新组装。计算机辅助重组可以有助于找到它们之间的关系，从而减少时间，人力和潜在的劣化到脆弱的碎片。在相邻片段之间使用几何兼容性作为中心思想，提出了一种用于三维壳体的重组框架作为二维框架的逻辑扩展。将边缘提取为多边形和相关特征在其每个顶点上计算。使用修改版本的Smith-Waterman算法找到特征空间中的两个片段的序列。使用连接分数评估每个匹配。通过显示潜在候选者的结果组装片段以及分数来留给用户的最佳匹配的最终选择。在成对匹配之后，通过基于聚类的方法来完成全局重组。即使具有弯曲边缘，该框架也可以处理片段，该曲线可以由一组边缘合理地近似。我们使用模拟数据集使用模拟数据集来验证2D片段和破碎的3D曲面对象。

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