Measurement Method of Dye Analysis by Hyperspectral Camera

―Verification of the Analysis Method for Ainu Textile Materials―

Abstract

Since its opening in 2020, the National Ainu Museum has investigated dyes used in Ainu textile materials and has installed a hyperspectral camera. In order to formulate suitable analysis conditions for dye analysis, the author conducted a verification on the accuracy of the device, with a focus on the distance between the sample and the device, and the analysis range. As a result, effective results for dye analysis were obtained under several conditions. Based on these results, an analysis of dyed samples typical within Ainu culture was conducted, and characteristic spectra were obtained for yew-dyed samples.