OMR of early plainchant manuscripts in square notation: A two-stage system

Carolina Ramirez*, Jun Ohya


研究成果: Conference contribution

2 被引用数 (Scopus)


While Optical Music Recognition (OMR) of modern printed and handwritten documents is considered a solved problem, with many commercial systems available today, the OMR of ancient musical manuscripts still remains an open problem. In this paper we present a system for the OMR of degraded western plainchant manuscripts in square notation from the XIV to XVI centuries. The system has two main blocks, the first one deals with symbol extraction and recognition, while the second one acts as an error detection stage for the first block outputs. For symbol extraction we use widely known image-processing techniques, such as Sobel filtering and Hough Transform, and SVM for classification. The error detection stage is implemented with a hidden Markov model (HMM), which takes advantage of a priori knowledge for this specific kind of music.

ホスト出版物のタイトルProceedings of SPIE-IS and T Electronic Imaging - Document Recognition and Retrieval XVIII
出版ステータスPublished - 2011 5月 12
イベントDocument Recognition and Retrieval XVIII - San Francisco, CA, United States
継続期間: 2011 1月 262011 1月 27


名前Proceedings of SPIE - The International Society for Optical Engineering


ConferenceDocument Recognition and Retrieval XVIII
国/地域United States
CitySan Francisco, CA

ASJC Scopus subject areas

  • 電子材料、光学材料、および磁性材料
  • 凝縮系物理学
  • コンピュータ サイエンスの応用
  • 応用数学
  • 電子工学および電気工学


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