Paoloni Stefano, Caruso Giovanni, Orazi Noemi, Zammit Ugo, Mercuri Fulvio
Department of Industrial Engineering, University of Rome Tor Vergata, 00133 Rome, Italy.
Institute of Heritage Science, National Research Council of Italy (ISPC-CNR), Montelibretti, 00010 Rome, Italy.
Sensors (Basel). 2024 Aug 24;24(17):5493. doi: 10.3390/s24175493.
In the manufacture of ancient books, it was quite common to insert written scraps belonging to earlier library material into bookbindings. For scholars like codicologists and paleographers, it is extremely important to have the possibility of reading the text lying on such scraps without dismantling the book. In this regard, in this paper, we report on the detection of these texts by means of infrared (IR) pulsed thermography (PT), which, in recent years, has been specifically proven to be an effective tool for the investigation of Cultural Heritage. In particular, we present a quantitative analysis based, for the first time, on PT images obtained from books of historical relevance preserved at the Biblioteca Angelica in Rome. The analysis has been carried out by means of a theoretical model for the PT signal, which makes use of two image parameters, namely, the distortion and the contrast, related to the IR readability of the buried texts. As shown in this paper, the good agreement between the experimental data obtained in the historical books and the theoretical analysis proved that the capability of the adopted PT method could be fruitfully applied, in real case studies, to the detection of buried texts and to the quantitative characterization of the parameters affecting their thermal readability.
在古籍制作过程中，将属于早期图书馆资料的书面残片插入装订书籍中是相当常见的。对于像古抄本学家和古文字学家这样的学者来说，能够在不拆解书籍的情况下阅读这些残片上的文字非常重要。在这方面，我们在本文中报告了利用红外（IR）脉冲热成像（PT）检测这些文字的情况，近年来，IR脉冲热成像已被明确证明是研究文化遗产的有效工具。特别是，我们首次基于从罗马天使图书馆保存的具有历史意义的书籍中获得的PT图像进行了定量分析。该分析是通过一个PT信号理论模型进行的，该模型利用了与埋藏文字的红外可读性相关的两个图像参数，即失真度和对比度。如本文所示，历史书籍中获得的实验数据与理论分析之间的良好一致性证明，所采用的PT方法能够在实际案例研究中有效地应用于埋藏文字的检测以及影响其热可读性的参数的定量表征。
