サマザマ ナ ホウコウ ニ カタムイタ インサツ スウジ ノ ニンシキアルゴリズム

Currently, there has been a great deal of research concerning the extraction of character lines from images of everyday scenes. In such images, however, the character lines will appear at various angles, and so we generally have to conduct revision processing for the angles to recognize such characters. In this paper, we have tried to recognize printed numerals at various angles without conducting this revision. The principle methods of our recognition algorithm are labeling, thinning, the detection of the center of gravity of images and the making of convex hull images. We obtained an average recognition rate of 95.99 (%) with the algorithm using 1296 samples for each category