@inproceedings{oai:ipsj.ixsq.nii.ac.jp:00241547,
 author = {上椙, 英之 and 上椙, 真之 and 村田, 泰輔 and Hideyuki, Uesugi Masayuki Uesugi Taisuke Murata},
 book = {じんもんこん2024論文集},
 month = {Nov},
 note = {近年,災害や経年劣化による損傷資料の保存が課題となっている.特に,展開が困難な資料から 非破壊・非接触で文字を抽出する技術が注目されている.本研究では,SPring-8 の X 線 CT を用いて和 紙上の墨書文字を抽出する実験を行った.従来の研究とは異なり,日本の墨は植物由来の炭素で構成 されており,X 線の吸収係数だけでは分離が難しい.しかし,予備実験で成功したことから,高分解能 な装置を用いて文字の抽出を試みた.結果,墨が和紙の繊維に浸透することで生じる密度差を利用し て文字を抽出できることが確認された.今後は,積層文書からの文字抽出や新たな画像処理手法の併 用を検討する., In recent years, the preservation of damaged materials due to disasters and age-related deterioration has become an issue. In particular, technologies for nondestructive and non-contact extraction of characters from materials that are difficult to unfold have been attracting attention. In this study, we conducted an experiment to extract inked characters on Japanese paper using X-ray CT at SPring-8. Unlike previous studies, Japanese ink is composed of plant-derived carbon, which is difficult to separate by X-ray absorption coefficient alone. However, since preliminary experiments were successful, we attempted to extract the characters using a high-resolution device. As a result, it was confirmed that characters can be extracted using the density difference caused by the penetration of ink into the fibers of Japanese paper. In the future, we will examine character extraction from laminated documents and the use of new image processing methods in combination.},
 pages = {323--328},
 publisher = {情報処理学会},
 title = {X線CTを用いた非破壊観察による積層した和紙の分離と紙上の墨による文字の可視化},
 volume = {2024},
 year = {2024}
}