Optical coherence tomography for art conservation and archaeology
Optical coherence tomography for art conservation and archaeology
复制标题
用于艺术保护和考古学的光学相干断层扫描
DOI：
10.1117/12.726032
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发表时间：
2007
影响因子：
5
通讯作者：
D. Saunders
中科院分区：
文献类型：
--
作者：
Haida Liang;B. Perić;M. Hughes;A. Podoleanu;M. Spring;D. Saunders
光学相干层析成像(OCT)是一种快速扫描迈克尔逊干涉仪，最初设计用于眼睛的活体成像。2004年，我们小组和另外两个小组首次报道了OCT在艺术保护和考古中的应用。从那时起，我们一直在进行一个项目，系统地研究OCT作为一种新工具对各种博物馆物品进行非侵入性检查的潜力，并设计一种最适合在博物馆现场使用的OCT。在这里，我们介绍了这个正在进行的项目的最新结果，其中包括确定使用传统技术对绘画和绘画对象进行OCT成像的最佳光谱窗口，以及在多个波长下对绘画地层的地下地层进行非侵入性成像。还将介绍OCT成像在辅助光谱颜料识别和测量涂料折射率方面的应用，以说明该技术的潜力。
Optical coherence tomography (OCT) is a fast scanning Michelson interferometer originally designed for in vivo imaging of the eye. In 2004, our group along with two other groups first reported the application of OCT to art conservation and archaeology. Since that time we have been conducting a project to investigate systematically the potential of OCT as a new tool for non-invasive examinations of a wide range of museum objects and to design an OCT optimised for in situ use in museums. Here we present the latest results from this ongoing project, which include the determination of the optimum spectral windows for OCT imaging of paintings and painted objects executed using traditional techniques, and non-invasive imaging of the subsurface stratigraphy of painted layers at multiple wavelengths. OCT imaging in assisting spectral pigment identification and in measuring refractive indices of paint will also be presented to illustrate the potential of the technique.