Nowadays, there has been a significant breakthrough in the restoration of cultural relics in China, thanks to the assistance of many scientific analysis instruments. Hyperspectral imaging instruments have the characteristic of capturing the fingerprint spectrum of substances and play an important role in the process of cultural relic restoration.
The specific applications of hyperspectral imaging instruments include cultural relic protection and restoration, archaeological site investigation, museum and library applications, and art appraisal.
Hyperspectral imaging technology allows a pair of discerning eyes to see through millennium old murals
Ancient pigments were mainly composed of natural substances such as minerals and plants, and the same color could be expressed by different substances. Archaeologists cannot determine which substance produced the color. The hyperspectral imaging device no longer obtains visible light images, but information on color spectral reflectance, which can fully and authentically restore the state of colors and murals. Moreover, the near-infrared to shortwave infrared bands have the ability to penetrate pigments, which means that hyperspectral imagers can see through murals.

High tech travels through ancient times, deciphering the secrets on murals
Murals can reflect the economic and cultural development and ideology of different historical periods from different perspectives, and their textual information helps archaeologists to gain a deeper understanding of the historical trajectory and analyze the development of early writing. Over the years, these murals may be affected by various factors, such as peeling, mold growth, discoloration, hollowing, and alkali residue. The hyperspectral imaging instrument analyzes and collects mural information by non-contact scanning at a certain distance from the mural. Quickly extract textual information from murals by analyzing the contours of image text and the materials used to write the text.

Uncover the secret of Terra Cotta Warriors, the eighth wonder of the world
After the reintroduction of the Terra Cotta Warriors, they are exposed to the air and are prone to change, and their restoration and protection are extremely difficult. The hyperspectral imaging technology directly obtains the image spectral information of the Terra Cotta Warriors through non-contact. By analyzing the image and spectral information of the Terra Cotta Warriors, we can understand the erosion degree of the Terra Cotta Warriors by diseases and the pigments made by the Terra Cotta Warriors, and then simulate their repair according to the analysis results.











