Examination of Surfical Analysis Using Infrared Image for Coloring Materials Found on Various Types of Cultural Properties

2023 Fiscal Year Final Research Report

• Project/Area Number: 19K01136
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Multi-year Fund
• Section: 一般
• Review Section: Basic Section 03060:Cultural assets study-related
• Research Institution: Independent Administrative Institution National Institutes for Cultural Heritage Tokyo National Research Institute for Cultural Properties (2020-2023); Kyushu National Museum (2019)
• Principal Investigator: Akiyama Junko 独立行政法人国立文化財機構東京文化財研究所, 保存科学研究センター, 室長 (10532484)
• Project Period (FY): 2019-04-01 – 2024-03-31
• Keywords: 赤外線画像 / 彩色分析 / 面的調査

Outline of Final Research Achievements

In this study, I attempted to apply infrared imaging to various forms of cultural properties. Using the Takamatsu Matsudaira family's "Illustrated Book on Natural History" as historical materials, I was able to confirm that the infrared images show the difference in coloring materials by comparing the distribution map of the reflection spectrum obtained by the hyperspectral camera with the infrared images. In addition, the effectiveness of the application of infrared imaging to dyed textile works was also confirmed. It was found that infrared imaging is very effective in grasping the spread of the surface of the colored material for various forms of cultural properties.

Free Research Field

保存科学

Academic Significance and Societal Importance of the Research Achievements

本研究では歴史資料や浮世絵などの刷物、染織品等に使用された彩色材料に対して、赤外線画像を使った調査が有効であるか検討した。様々な形態の文化財の彩色材料に対して分析機器による点分析の結果を面の広がりとして把握するのに、安全で簡便に調査できる赤外線画像の利用は非常に有効である。赤外線画像が様々な複合材料で構成された文化財に広く活用できれば、点だけの情報に面の情報を加えることができ、文化財の科学調査に対して大きく貢献できると考える。