# 카메라 기반 악보 영상 인식을 위한 오선 검출 및 삭제 알고리즘

• 손화정 (전남대학교 공과대학 전산학과) ;
• 김수형 (전남대학교 공과대학 전산학과) ;
• 오성열 (전남대학교 공과대학 전산학과)
• Published : 2007.11.30
• 75 88

#### Abstract

In this paper, we propose a staff-line detection and removal algorithm from a music score image obtained by a mobile phone camera. As a preprocessing technique to recognize a music score image, staff-line detection and removal should be efficiently applied to the skewed or curved images. The proposed method detects a staff-line by dividing a staff according to the degree of distortion. The number of division is calculated by dividing a staff repletely until an average of differences of y coordinates in every divided position is smaller than a threshold. Therefore, the number of division can be adaptively estimated according to the degree of the distortion. For an experiment, we make various kinds of images by rotating one from $1^{\circ}\;to\;3^{\circ}$ or curving slightly upward. The results show that the proposed method performed well on the experiment images.

#### Keywords

Music Score Recognition;Staff-line Detection and Removal