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A Broken Line Classification Method of Mathematical Graphs for Automating Translation into Scalable Vector Graphic

Tactile graphics are useful for visually impaired students when they study mathematics and science. However, producing tactile graphics is not simple task. An intelligent computer-aided system for assisting the production of tactile graphics is needed. To develop such a system, research on mathematical graph recognition techniques is needed. This paper focuses on a method of mathematical graph recognition. When drawing a mathematical graph, we use not only solid lines, but also use broken lines. This paper describes a method for extracting and classifying broken line elements from mathematical graphs.