Segmentation of Touching Characters in Formulas
Segmentation of touching characters in mathematical formulas needs a different method from the one for text lines, because these characters may occur in horizontal, vertical or diagonal directions.Our segmentation method is based on the projection profiles of a given binary image and minimal points of the blurred image obtained by applying the Gaussian kernel to the original image.
- 1.Okamoto, M., Miao, B.: Recognition of Mathematical Expressions by Using Layout Structure of Symbols. Proc. of ICDAR'91 (1991) 242–250Google Scholar
- 2.Okamoto, M., Higashi, H.: Structure Analysis and Recognition of Mathematical Expressions. Proc. of ICDAR'95 (1995) 430–437Google Scholar
- 3.Kahan, S., Pavlidis, T., Baird, H. S.: On the Recognition of Printed Characters of Any Font and Size. IEEE Trans. of PAMI, 9, 2 (1987)Google Scholar
- 4.Wang, L., Pavlidis, T.: Direct Gray-Scale Extraction of Feature for Character Recognition. IEEE Trans. of PAMI, 15, 10 (1993) 1053–1067Google Scholar
- 5.Nako, K., Takamatsu, R., Sato, M., Kawarada, H.: A New Character Segmentation Method for Handwritten Documents Based on Differential Structure of Blurred Document Image. Technical Report of IEICE, PRU93-131 (1994) 9–16Google Scholar