A new 3D information acquisition method of micro-drilling marks on ancient perforated stone bead through micro-CT.
A new 3D information acquisition method of micro-drilling marks on ancient perforated stone bead through micro-CT.
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DOI：
10.3233/xst-2011-0297
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发表时间：
2011
影响因子：
3
通讯作者：
Min Yang;Yimin Yang;Changsui Wang
中科院分区：
文献类型：
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作者：
Min Yang;Yimin Yang;Changsui Wang
钻孔是制作古代石器或玉器或装饰品的最复杂的技术之一。然而，关于古代石器或玉器的相关研究相对滞后，因为对古代钻器的记载或发现很少。钻孔痕迹对于分析和研究古代钻孔技术是非常有用的信息。传统的信息采集方法很难有效地应用于较小的射孔。本文介绍了一种新的无损检测方法来解决观测困难问题。使用3D-μCT系统对古珠进行扫描。然后通过T-FDK算法、改进的NL-Means去噪算法和高精度标定，重建出穿孔外壁和内壁微钻孔痕迹的三维几何信息。实验结果证明，该方法可以为古石器钻孔技术分析和古玉器鉴定提供关键信息。
Drilling is one of the most complex techniques for making ancient stone or jade implement or adornment. However, related research on ancient stone or jade drilling technology lags behind, for there are rare records or discovery of the ancient drilling tools. Drilling marks are very useful information for analysis and research of the ancient drilling techniques. The traditional information acquisition methods are very difficult to apply effectively on smaller perforations. In this paper, we introduced a new nondestructive method to solve the observation difficulty problem. The ancient bead was scanned by 3D-μCT system. Then through T-FDK algorithm, improved NL-means denoising algorithm and high accurate calibration, the 3D geometrical information of micro-drilling marks on outer and inner wall of the perforation were reconstructed. The experimental results proved that this method can provide key information for the analysis of the ancient stone drilling technique and ancient jade authentication.