| 摘要 |
PURPOSE:To recognize hand-written characters accurately, by calculating the sum of the shortest distances from the start point, the end point, and bend points of the polygonal line approximate pattern of a stroke to other strokes to detect a duplicate write stroke and extracting features for the duplicate write stroke. CONSTITUTION:One-character components of coordinate data are stored in a coordinate memory 1, and a flag bit is set in the last coordinates of strokes. Strokes of the memory 1 are approximated to polygonal lines by a polygonal approximating equipment 2, and coordinate values of their start points, end points, and bend points of polygonal lines are stored in a polygonal line register memory 3. A value of the shortest distance between coordinate values in the memory 1 and the first coordinates in the memory 3 is detected by a distance calculator 4 and is applied to an adder 5 and is added to contents of an addition value register 6, and the result is stored in the register 6. Contents of the register 6 are read out into a comparison discriminator 7; and when they are smaller than a certain value, the second stroke is discriminated as the duplicate write stroke of the first stroke, and thus, hand-written characters are recognized accurately. |
