DocumentCode :
2475844
Title :
Development of a method for extracting graph elements from mathematical graphs
Author :
Chen, Jianjun ; Nagaya, Ryoji ; Takagi, Noboru
Author_Institution :
Dept. of Intell. Syst. Design Eng., Toyama Prefectural Univ., Imizu, Japan
fYear :
2012
fDate :
14-17 Oct. 2012
Firstpage :
2921
Lastpage :
2926
Abstract :
Tactile graphics are images that use raised surface so that a visually impaired person can feel them. Tactile graphics are necessary to visually impaired students when they study mathematics and science. Since producing tactile graphics are not simple task, an intelligent computer-aided system for assisting the production of tactile graphics is needed. Mathematical graph recognition from printed materials plays an important role to develop such a system. So, this paper focuses on part of a method of mathematical graph recognition. A mathematical graph includes graph elements such as the rays representing the x-axis and the y-axis and the line segments or the curves representing functions or equations. Graph elements are often drawn so that they are overlapped each other. So, this paper discusses a method for extracting graph elements from an element which is drawn by overlapping more than one graph element. The effectiveness of our method is evaluated by a computer experiment.
Keywords :
graph theory; handicapped aids; haptic interfaces; image representation; mathematical analysis; vision defects; computer experiment; curves representing equations; graph elements extraction; intelligent computer-aided system; line segments; mathematical graph recognition; mathematical graphs; printed materials; tactile graphics; visually impaired person; x-axis rays representation; y-axis rays representation; Curve fitting; Finite element methods; Fuzzy logic; Merging; Skeleton; Splines (mathematics); computer aided-system; curve fitting; graph recognition; image processing; tactile graphics;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Systems, Man, and Cybernetics (SMC), 2012 IEEE International Conference on
Conference_Location :
Seoul
Print_ISBN :
978-1-4673-1713-9
Electronic_ISBN :
978-1-4673-1712-2
Type :
conf
DOI :
10.1109/ICSMC.2012.6378237
Filename :
6378237
Link To Document :
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