Patent Document ID: 6046394
Application ID: 09254306
Patent Status: 1

Claim One:
1. A music score recognizing method of reading an image of a music score and recognizing music signs therein to prepare data for playing or music score displaying, said music score recognizing method characterized in that projections onto a transverse axis are derived from a staff start position xs to a staff end position xe with respect to a given height section y1-y2, set per sign, based on staff positions, that if a width of a section x1-x2 where a value of the projection exceeds a given threshold value th1 exceeds another given threshold value th2, a rectangle surrounded by x1, x2, y1 and y2 is set to be a label for extracting a feature of the corresponding sign, that sections in said height section y1-y2 which do not overlap with a staff image are set to be extracting sections in said label for obtaining peripheral features in a transverse direction, said peripheral features derived for a plurality of orders from left and right ends in each extracting section, that each extracting section is divided into a plurality of mesh sections which are set so as to partly overlap with each other in a height direction, that a mean value of the peripheral features in each mesh section is derived per order and set to be a feature amount in each mesh section, said feature amount per order derived for each of the left and right ends and per mesh section and set to be a feature of said label, and that the sign having a fixed position on the staff or having the staff in a grid in the music score image is recognized through pattern matching with features stored in a dictionary.