Title :
A technique of mathematical expression structure analysis for the handwriting input system
Author_Institution :
Fac. of Eng., Oita Univ.
Abstract :
We propose a new practical user interface to input mathematical expressions into a computer using a data tablet or an electron board. The system recognizes mathematical expressions of high school level (until the first year of university), and the results are output in LATEX-source format. For the character recognition, we use a 3×5-mesh directional element feature and some additional features which are robust against the distortion. As for the segmentation of characters and the structure analysis of mathematical expressions, our method is considerably robust against the touching of characters and the deviation of positions in the wide range
Keywords :
document image processing; handwritten character recognition; optical character recognition; user interfaces; LATEX; character recognition; character segmentation; data tablet; handwriting input system; handwriting recognition; mathematical expression structure analysis; user interface; Character recognition; Computer interfaces; Computer networks; Computer science education; Data engineering; Error correction; Handwriting recognition; Mathematics; Systems engineering education; User interfaces;
Conference_Titel :
Document Analysis and Recognition, 1999. ICDAR '99. Proceedings of the Fifth International Conference on
Conference_Location :
Bangalore
Print_ISBN :
0-7695-0318-7
DOI :
10.1109/ICDAR.1999.791742
