| 摘要 |
PROBLEM TO BE SOLVED: To provide a character recognition device whose dictionary retrieving performance is improved, and whose recognition error correcting precision is improved by preliminarily setting similar characters likely to be erroneously recognized for each character or the different fonts, and executing dictionary retrieval by considering the similar characters and different fonts(including old characters, familiar characters, person's name Chinese characters or the like) in addition to the normal dictionary retrieval. SOLUTION: An original image is inputted by image inputting equipment such as a scanner (S1). Next, a rectangle circumscribing this is calculated for each of the continuous ranges of black pixels (S2). Then, the circumscribing rectangles are integrated, and grown to a line (S3). The line is divided into the ranges which seem to be one character based on black pixel projection and line height or the like. In this case, a plurality of candidates may be extracted (S4). Then, the ranges acquired in the step S4 are recognized as one character, and image characteristics are collated with a recognition dictionary so that recognition scores can be calculated, and solutions which are not less than a preliminarily set threshold are held as recognition candidates (S5). The list of the recognition candidates calculated in the step S5 is collated with a language dictionary and grammar, and the proper solution is selected considering the recognition scores(S6). COPYRIGHT: (C)2004,JPO&NCIPI
|
