RECOGNITION MODE DESIGNATING SYSTEM OF HAND-WRITTEN CHARACTER AND PATTERN RECOGNIZING DEVICE

摘要

PURPOSE:To designate automatically a character recognition mode or a pattern recognition mode by extracting the quantity of features for character and pattern recognition from stroke coordinates. CONSTITUTION:A projection length DELTAu1 on the (x) axis and a projection length DELTAv1 on the (y) axis are obtained in accordance with coordinates P0-P4 of a stroke number S1, and a maximum projection length of these DELTAu1 and DELTAv1 is defined as the quantity of features. It is found that projection lengths of strokes S1-S10 forecasted as character strokes are shorter but those of strokes S11-S13 forecasted as pattern strokes are longer. Thus, this projection length is compared with a prescribed threshold, and the character stroke, namely, character recognition mode is set if the projection length is shorter than the prescribed threshold, and the pattern stroke, namely, pattern recognition mode is set otherwise.