JPS5717087A - Recognizing method of on-line handwritten character - Google Patents

Abstract

PURPOSE:To realize a recognition for only the effective coordinate data as a subject of extraction of features, by extracting the phenomenon peculiar to the sweep-up by calculating the brush point speed with every sampling point and then eliminating the sweep-up on a character pattern. CONSTITUTION:An input coordinates S1 is stored in a coordinate memory 1, and at the same time the brush point speed is calculated by a distance calculator 2 and with every sampling point. A section dividing point detector 3 detects the point where the brush point speed changes to a level higher or lower than a certain value and makes a section dividing point register memory 4 store the address corresponding to the divided points on the memory 1. A section length calculator 5 calculates the length of each section and stores it in a register 6. A decider 7 reads the length of the brush point movement section and the length of an adjacent section within the same stroke as the said movement section and then compares these lengths with each other when a coincidence is obtained between the end point of the brush point movement section and the stroke end point. In case the length of the movement section is shorter than a certain value, the length is decided as a undesired data caused by a sweep-up to be defined as an ineffective information.