Development of image analysis method for restoring weathered inscriptions

• Project/Area Number: 25730201
• Research Category: Grant-in-Aid for Young Scientists (B)
• Allocation Type: Multi-year Fund
• Research Field: Library and information science/Humanistic social informatics
• Research Institution: Kobe Gakuin University
• Principal Investigator: Uesugi Hideyuki 神戸学院大学, 現代社会学部, 研究員 (50600409)
• Project Period (FY): 2013-04-01 – 2017-03-31
• Project Status: Completed (Fiscal Year 2016)
• Budget Amount: ¥4,030,000 (Direct Cost: ¥3,100,000、Indirect Cost: ¥930,000); Fiscal Year 2015: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000); Fiscal Year 2014: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000); Fiscal Year 2013: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
• Keywords: 金石文 / 石碑 / 考古学 / 画像処理 / デジタルアーカイブ / 石造遺物 / 文化財 / 図書館情報学 / データベース / 風化

Outline of Final Research Achievements

After that, it became possible to extract inscriptions by the illuminance difference of the image and the illuminance model created by the shape of the surface of the stone, using the analytical digital archive we have already developed.
This study is aimed at automatic recognition of characters using OCR. To attain this goal, binarization of images is necessary. Although deciphering of characters is eventually possible, it is noisy. The use of OCR is only slightly possible. OCR could not be put to practical use.

Research Products

• [Journal Article] Development of the Database for Images of the Text on the Stone Monuments (2013)
  • Author(s): Uesugi H., Uesugi M.,
  • Journal Title: Culture and Computing Volume: 2013 Pages: 149-150
  • DOI: 10.1109/culturecomputing.2013.40
  • Peer Reviewed
• [Presentation] 解析型デジタルアーカイブによる石碑の利活用 (2017)
  • Author(s): 上椙 英之
  • Organizer: 日本語の歴史的典籍国際研究集会
  • Place of Presentation: 国文学研究資料館
  • Year and Date: 2017-07-28
• [Presentation] 保存・修復・活用に向けた石碑アーカイブシステムの提案 (2017)
  • Author(s): 上椙 英之
  • Organizer: 情報コミュニケーション学会
  • Place of Presentation: 一橋大学 国立キャンパス
  • Year and Date: 2017-03-05
• [Presentation] 風化金石文撮影の意義と解析型アーカイブ (2016)
  • Author(s): 上椙 英之
  • Organizer: 情報保存研究会
  • Place of Presentation: 一橋大学一橋講堂中会議場
  • Year and Date: 2016-10-03
  • Invited
• [Presentation] STONE MONUMENT TEXT IMAGE DATABASE (2015)
  • Author(s): Hideyuki Uesugi
  • Organizer: 4th International Conference on Theory and Practice in Modern Computing 2015
  • Place of Presentation: Las Palmas de Gran Canaria, Spain
  • Year and Date: 2015-07-22 – 2015-07-24
• [Presentation] Stone Monument Text Image Database. (2015)
  • Author(s): Uesugi Hideyuki
  • Organizer: IADIS Multi Conference on Computer Science and Information Systems (TPMC2015)
  • Place of Presentation: Las Palmas de Gran Canaria, Spain
  • Year and Date: 2015-07-22
  • Int'l Joint Research