基于高光谱技术对佛教洞穴绘画的颜料成分进行研究
Xiang Shi1, Xiaogang Lin1, Yu Lei2
1Key Laboratory of Optoelectronic Technology and Systems of Ministry of Education of China, Chongqing University, Chongqing 400044, China.
Materials (Basel, Switzerland)
|November 9, 2024
概括
超光谱成像非破坏性地分析佛教洞穴表面绘画. 这项技术可以准确地识别颜料,并有助于为古代艺术品的修复材料选择.
科学领域:
- 艺术保护科学 艺术保护科学
- 频谱学是一种光谱学.
- 数字成像技术的数字成像.
背景情况:
- 佛教洞穴包含宝贵的表面绘画与雕像一起.
- 保存和修复古代绘画需要准确的材料识别.
- 超光谱成像为组件分析提供了一种非接触,非破坏性的方法.
研究的目的:
- 应用超光谱成像用于识别佛教洞穴表面绘画中的颜料.
- 为了研究粘合剂,基质和颗粒大小对色素反射光谱的影响.
- 利用光谱数据进行准确的色素识别和恢复指导.
主要方法:
- 从佛教洞穴表面获得颜料的超光谱图像的获取.
- 对粘合剂,基质和颗粒大小对反射频谱的影响进行实验分析.
- 应用光谱角度匹配 (SAM) 算法用于光谱分析.
- 分析元洞穴和奇丘山石雕.
主要成果:
- 反射光谱的吸收峰值受到结合剂的影响,但受基质的影响不大.
- 光谱中的吸收深度与色素颗粒大小相关.
- 即使使用光谱匹配,也可以对类似的颜色进行准确的组件识别.
- 颜料分布分析揭示了对古代绘画技术的洞察力.
结论:
- 超光谱成像在佛教洞穴艺术中有效用于非破坏性色素识别.
- 了解光谱变化有助于准确的材料分析和修复.
- 这项研究为恢复唐朝佛教洞穴绘画提供了宝贵的参考.
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