Noise processing system for hand-written numerical recognition

Abstract

Abstract PURPOSE:To surely recognize a numerical by removing a noise element only when the length of a part corresponding to the noise element is less than a prescribed value and comparing the numeral with a sorting code again. CONSTITUTION:A hand-written character is thinned like a straight line P1, a dot P2, a straight line P3, a loop P4, a dot P5, and a straight line P6. Since the dot P2 can be determined as a noise frequently appearing on a folded point or the like, the dot P2 is previously registered as a dot branch to be a noise. Since the dot P5 is not an end point branch, it is not applied to noise processing. Then, the dot branch number of a noise element is specified, whether the length of the corresponding branch is less than a prescribed value or not is decided, and when the length is less than the prescribed value, the end point dot branch less than the prescribed length is removed. Consequently, the generation of misrecognition due to noise can be prevented.

Inventors

• 👤 Shoji Miki
• 👤 三木　章司
• 👤 Hirotaka Tsubota
• 👤 浩貴 坪田
• 👤 Hiroshi Kameyama
• 👤 博史 亀山

Bibliographic Details