| 摘要 |
PURPOSE:To raise the character recognition force in a character reader by catching a character as a graphic and extracting the feature quantity of each separate inclination which has taken an inclination of a segment into consideration. CONSTITUTION:A character on a business form is read, and a binarized character pattern is inputted to a pattern register 1. From the contents of the pattern register 1, a contour extracting part 2 executes contour tracking by setting a coordinate as a start point, and extracts a contour feature. Subsequently, an inclination discriminating part 3 discriminates an inclination of a segment from (x) and (y) contour coordinates which have been extracted by the contour extracting part 2. A feature quantity calculating part 4 calculates the feature quantity consisting of a relative position of the segment from the (x) and (y) contour coordinates in each separate inclination which has been discriminated by the inclination discriminating part. A discriminating part 5 brings the feature quantity of an input character pattern calculated by the feature quantity calculating part 4 and the feature quantity of a character pattern stored in the discriminating part 5, to matching. Its difference becomes a matching distance, and the minimum character is selected as a result of recognition. |
