Music OCR

Music OCR

Music OCR is the application of optical character recognition to interpret sheet music or printed scores into editable and, often, playable form. Once captured digitally, the music can be saved in commonly used file formats, e.g. MIDI (for playback) and MusicXML (for page layout).

Contents

History

Early research into recognition of printed sheet music was performed at the graduate level in the late 1960s at MIT and other institutions.[1] Successive efforts were made to localize and remove musical staff lines leaving symbols to be recognized and parsed. The first commercial music-scanning product, MIDISCAN, was released in 1991 by Musitek corporation.

Unlike OCR of text, where words are parsed sequentially, music notation involves parallel elements, as when several voices are present along with unattached performance symbols positioned nearby. Therefore, the spatial relationship between notes, expression marks, dynamics, articulations and other annotations is an important part of the expression of the music.

Modern music OCR packages have accuracy exceeding 99% when a clean scan is used and the notation is not exceptional (e.g. unfilled voices, non-standard symbology, etc.).[2] Because music notation utilizes dots for staccato marks or to extend the value of a note, artifacts in the scan can lead to interpretation problems.

Proprietary software

  • capella-scan
  • PhotoScore (used in Sibelius)
  • ScoreMaker
  • SharpEye
  • SmartScore SmartScore Lite is used in Finale. Formerly packaged as "MIDISCAN"
  • VivaldiScan
  • MusicReader

Free/Open Source Software

External links

References


Wikimedia Foundation. 2010.

Игры ⚽ Поможем написать курсовую

Look at other dictionaries:

  • OCR — may refer to: Optical character recognition, conversion of images of text into characters The OCR A font, designed to simplify character recognition The similar OCR B font Transvaginal oocyte retrieval, a technique used in in vitro fertilization… …   Wikipedia

  • OCR (examination board) — Infobox Organization name = OCR formation = 1998 purpose = Examination board headquarters = Cambridge, UK region served = England, Wales and Northern Ireland parent organization = Cambridge Assessment website = [http://www.ocr.org.uk/ www.ocr.org …   Wikipedia

  • Sheet music — For other uses, see Sheet music (disambiguation). Sheet music is written representation of music. This is a homorhythmic (i.e., hymn style) arrangement of a traditional piece entitled Adeste Fideles, in standard two staff format for mixed voices …   Wikipedia

  • Category:Music software — Listed here are articles for free and commercial software concerned with various aspects of music creation or enjoyment. Music software covers a wide array of functions ranging from musical composition software, audio recording software and… …   Wikipedia

  • Moon Landing (music drama) — For other uses, see Moon landing (disambiguation). Moon Landing Music Stephen Edwards Lyrics Stephen Edwards Book Stephen Edwards Productions 2007 Derby Playhouse …   Wikipedia

  • Musical notation — Music markup redirects here. For the XML application, see Music Markup Language. Hand written musical notation by J. S. Bach: beginning of the Prelude from the Suite for Lute in G minor BWV 995 (transcription of Cello Suite No. 5, BWV 1011) BR… …   Wikipedia

  • SmartScore — Developer(s) Musitek Corporation Stable release 10.3.3 (as of 7.12.2010) Operating system Windows, Mac OS Type …   Wikipedia

  • Optical character recognition — Optical character recognition, usually abbreviated to OCR, is the mechanical or electronic translation of scanned images of handwritten, typewritten or printed text into machine encoded text. It is widely used to convert books and documents into… …   Wikipedia

  • Notation Interchange File Format — (NIFF) is a music notation file format used primarily for transferring music notation between different scorewriters. The NIFF project was started in February 1994 to create an open format that would allow exchange of music between various… …   Wikipedia

  • Оптическое распознавание символов — (англ. optical character recognition, OCR)  механический или электронный перевод изображений рукописного, машинописного или печатного текста в текстовые данные  последовательность кодов, использующихся для представления символов в… …   Википедия

Share the article and excerpts

Direct link
Do a right-click on the link above
and select “Copy Link”