AUTOMATIC RECOGNITION FOR PRINTED MUSIC USING CONTOUR TRACING AND PROJECTION

Dengsheng Zhang
Anqing Normal Inst., Anhui, China

Haizhou Li, Bingzheng Xu
South China Univ. of Tech., Guangzhou, China

ABSTRACT

In this paper, a recognition system for printed music is introduced. Projection is used in the preprocessing step and the music notations are recognized by contour tracing. A structural decomposition technique and music knowledge are also used in the work. The system is significantly tolerant of noise, rotation of the original image and local variation of thickness on staff lines. Diagrams demonstrating some processing steps are shown and an example of output is given in the form of text file. The result of the recognition is analyzed and discussed to evaluate the system.

Key words: Projection, Quadratic mean, Staff nucleus, Ideal height, Staff, Music knowledge, Contour tracing.